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Posted to commits@paimon.apache.org by lz...@apache.org on 2023/03/24 02:26:58 UTC

[incubator-paimon-shade] branch main updated: [ci] add license check tool (#6)

This is an automated email from the ASF dual-hosted git repository.

lzljs3620320 pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/incubator-paimon-shade.git


The following commit(s) were added to refs/heads/main by this push:
     new 7284104  [ci] add license check tool (#6)
7284104 is described below

commit 7284104759e0512c3e68999c482734c18eb470e9
Author: Kerwin <37...@users.noreply.github.com>
AuthorDate: Fri Mar 24 10:26:53 2023 +0800

    [ci] add license check tool (#6)
---
 .github/workflows/ci.yml                           |   8 +-
 NOTICE                                             |   2 +-
 paimon-shade-guava-30/pom.xml                      |   4 -
 .../src/main/resources/META-INF/NOTICE             |   2 +-
 .../src/main/resources/META-INF/NOTICE             |   2 +-
 pom.xml                                            |  36 ++
 tools/ci/paimon-ci-tools/pom.xml                   |  91 ++++
 .../tools/ci/licensecheck/JarFileChecker.java      | 329 +++++++++++++
 .../tools/ci/licensecheck/LicenseChecker.java      |  53 +++
 .../tools/ci/licensecheck/NoticeFileChecker.java   | 390 +++++++++++++++
 .../tools/ci/suffixcheck/ScalaSuffixChecker.java   | 262 ++++++++++
 .../ci/utils/dependency/DependencyParser.java      | 228 +++++++++
 .../paimon/tools/ci/utils/deploy/DeployParser.java |  74 +++
 .../tools/ci/utils/notice/NoticeContents.java      |  42 ++
 .../paimon/tools/ci/utils/notice/NoticeParser.java |  95 ++++
 .../paimon/tools/ci/utils/shade/ShadeParser.java   | 113 +++++
 .../paimon/tools/ci/utils/shared/Dependency.java   | 133 ++++++
 .../tools/ci/utils/shared/DependencyTree.java      | 123 +++++
 .../paimon/tools/ci/utils/shared/ParserUtils.java  |  73 +++
 .../src/main/resources/log4j2.properties           |  25 +
 ...modules-defining-excess-dependencies.modulelist |  20 +
 .../tools/ci/licensecheck/JarFileCheckerTest.java  | 525 +++++++++++++++++++++
 .../ci/licensecheck/NoticeFileCheckerTest.java     | 203 ++++++++
 .../utils/dependency/DependencyParserCopyTest.java | 121 +++++
 .../utils/dependency/DependencyParserTreeTest.java | 148 ++++++
 .../tools/ci/utils/deploy/DeployParserTest.java    |  57 +++
 .../tools/ci/utils/notice/NoticeParserTest.java    |  93 ++++
 .../tools/ci/utils/shade/ShadeParserTest.java      |  95 ++++
 .../tools/ci/utils/shared/DependencyTreeTest.java  |  96 ++++
 29 files changed, 3434 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bff41ca..1eaa8d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,8 +39,12 @@ jobs:
         run: |
           set -o pipefail
 
-          ./mvnw clean deploy ${{ env.MVN_COMMON_OPTIONS }} \
+          ./mvnw clean deploy ${{ env.MVN_COMMON_OPTIONS }} -Dmaven.test.skip=true \
             -DaltDeploymentRepository=validation_repository::default::file:${{ env.MVN_VALIDATION_DIR }} \
             | tee ${{ env.MVN_BUILD_OUTPUT_FILE }}
 
-      # TODO Add check licensing
+      - name: Check licensing
+        run: |
+          ./mvnw ${{ env.MVN_COMMON_OPTIONS }} exec:java@check-licensing -N \
+            -Dexec.args="${{ env.MVN_BUILD_OUTPUT_FILE }} $(pwd) ${{ env.MVN_VALIDATION_DIR }}" \
+            -Dlog4j.configurationFile=file://$(pwd)/tools/ci/log4j.properties
diff --git a/NOTICE b/NOTICE
index 68d4a4a..6f7d8e0 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache Paimon (incubating)
-Copyright 2014-2023 The Apache Software Foundation
+Copyright 2023-2023 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/paimon-shade-guava-30/pom.xml b/paimon-shade-guava-30/pom.xml
index 31fc3a6..9932d4e 100644
--- a/paimon-shade-guava-30/pom.xml
+++ b/paimon-shade-guava-30/pom.xml
@@ -35,10 +35,6 @@ under the License.
 
     <packaging>jar</packaging>
 
-    <properties>
-        <guava.version>30.1.1-jre</guava.version>
-    </properties>
-
     <dependencies>
         <dependency>
             <groupId>com.google.guava</groupId>
diff --git a/paimon-shade-jackson-parent/paimon-shade-jackson-2/src/main/resources/META-INF/NOTICE b/paimon-shade-jackson-parent/paimon-shade-jackson-2/src/main/resources/META-INF/NOTICE
index 160bf65..6e60fb1 100644
--- a/paimon-shade-jackson-parent/paimon-shade-jackson-2/src/main/resources/META-INF/NOTICE
+++ b/paimon-shade-jackson-parent/paimon-shade-jackson-2/src/main/resources/META-INF/NOTICE
@@ -1,5 +1,5 @@
 paimon-shade-jackson-2
-Copyright 2014-2021 The Apache Software Foundation
+Copyright 2023-2023 The Apache Software Foundation
 
 This project includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/paimon-shade-jackson-parent/paimon-shade-jackson-module-jsonSchema-2/src/main/resources/META-INF/NOTICE b/paimon-shade-jackson-parent/paimon-shade-jackson-module-jsonSchema-2/src/main/resources/META-INF/NOTICE
index 63e28f6..0037f85 100644
--- a/paimon-shade-jackson-parent/paimon-shade-jackson-module-jsonSchema-2/src/main/resources/META-INF/NOTICE
+++ b/paimon-shade-jackson-parent/paimon-shade-jackson-module-jsonSchema-2/src/main/resources/META-INF/NOTICE
@@ -1,5 +1,5 @@
 paimon-shade-jackson-module-jsonSchema-2
-Copyright 2014-2021 The Apache Software Foundation
+Copyright 2023-2023 The Apache Software Foundation
 
 This project includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/pom.xml b/pom.xml
index 7fe8abf..5113691 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,10 +64,16 @@ under the License.
         <module>paimon-shade-guava-30</module>
         <module>paimon-shade-caffeine-2</module>
         <module>paimon-shade-jackson-parent</module>
+        <module>tools/ci/paimon-ci-tools</module>
     </modules>
 
     <properties>
         <shading.prefix>org.apache.paimon.shade</shading.prefix>
+
+        <guava.version>30.1.1-jre</guava.version>
+        <log4j.version>2.17.1</log4j.version>
+        <junit5.version>5.8.1</junit5.version>
+        <assertj.version>3.23.1</assertj.version>
     </properties>
 
     <profiles>
@@ -139,6 +145,7 @@ under the License.
                     <name>shade-sources</name>
                 </property>
             </activation>
+
             <build>
                 <pluginManagement>
                     <plugins>
@@ -297,6 +304,35 @@ under the License.
                     </excludes>
                 </configuration>
             </plugin>
+
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>3.1.0</version>
+                <inherited>false</inherited>
+                <executions>
+                    <execution>
+                        <id>check-license</id>
+                        <!-- manually called -->
+                        <phase>none</phase>
+                        <goals>
+                            <goal>java</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <mainClass>org.apache.paimon.tools.ci.licensecheck.LicenseChecker</mainClass>
+                    <includePluginDependencies>true</includePluginDependencies>
+                    <includeProjectDependencies>false</includeProjectDependencies>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.apache.paimon</groupId>
+                        <artifactId>paimon-ci-tools</artifactId>
+                        <version>${project.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
         </plugins>
     </build>
 
diff --git a/tools/ci/paimon-ci-tools/pom.xml b/tools/ci/paimon-ci-tools/pom.xml
new file mode 100644
index 0000000..d761b0f
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/pom.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+	<modelVersion>4.0.0</modelVersion>
+
+	<parent>
+		<groupId>org.apache.paimon</groupId>
+		<artifactId>paimon-shade</artifactId>
+		<version>1.0</version>
+		<relativePath>../../..</relativePath>
+	</parent>
+
+	<artifactId>paimon-ci-tools</artifactId>
+	<version>1.0</version>
+	<name>Paimon : Tools : CI : Java</name>
+
+	<properties>
+		<japicmp.skip>true</japicmp.skip>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.google.guava</groupId>
+			<artifactId>guava</artifactId>
+			<version>${guava.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter</artifactId>
+			<version>${junit5.version}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.assertj</groupId>
+			<artifactId>assertj-core</artifactId>
+			<version>${assertj.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-slf4j-impl</artifactId>
+			<version>${log4j.version}</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-api</artifactId>
+			<version>${log4j.version}</version>
+			<scope>compile</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+			<version>${log4j.version}</version>
+			<scope>compile</scope>
+		</dependency>
+	</dependencies>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>8</source>
+					<target>8</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+</project>
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/JarFileChecker.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/JarFileChecker.java
new file mode 100644
index 0000000..c3b05cb
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/JarFileChecker.java
@@ -0,0 +1,329 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.licensecheck;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.net.URI;
+import java.nio.charset.MalformedInputException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/** Checks the Jar files created by the build process. */
+public class JarFileChecker {
+    private static final Logger LOG = LoggerFactory.getLogger(JarFileChecker.class);
+
+    public static int checkPath(Path path) throws Exception {
+        List<Path> files = getBuildJars(path);
+        LOG.info("Checking directory {} with a total of {} jar files.", path, files.size());
+
+        int severeIssues = 0;
+        for (Path file : files) {
+            severeIssues += checkJar(file);
+        }
+
+        return severeIssues;
+    }
+
+    private static List<Path> getBuildJars(Path path) throws IOException {
+        return Files.walk(path)
+                .filter(file -> file.toString().endsWith(".jar"))
+                .collect(Collectors.toList());
+    }
+
+    @VisibleForTesting
+    static int checkJar(Path file) throws Exception {
+        final URI uri = file.toUri();
+
+        int numSevereIssues = 0;
+        try (final FileSystem fileSystem =
+                FileSystems.newFileSystem(
+                        new URI("jar:file", uri.getHost(), uri.getPath(), uri.getFragment()),
+                        Collections.emptyMap())) {
+            if (isTestJarAndEmpty(file, fileSystem.getPath("/"))) {
+                return 0;
+            }
+            if (!noticeFileExistsAndIsValid(fileSystem.getPath("META-INF", "NOTICE"), file)) {
+                numSevereIssues++;
+            }
+            if (!licenseFileExistsAndIsValid(fileSystem.getPath("META-INF", "LICENSE"), file)) {
+                numSevereIssues++;
+            }
+
+            numSevereIssues +=
+                    getNumLicenseFilesOutsideMetaInfDirectory(file, fileSystem.getPath("/"));
+
+            numSevereIssues += getFilesWithIncompatibleLicenses(file, fileSystem.getPath("/"));
+        }
+        return numSevereIssues;
+    }
+
+    private static boolean isTestJarAndEmpty(Path jar, Path jarRoot) throws IOException {
+        if (jar.getFileName().toString().endsWith("-tests.jar")) {
+            try (Stream<Path> files = Files.walk(jarRoot)) {
+                long numClassFiles =
+                        files.filter(path -> !path.equals(jarRoot))
+                                .filter(path -> path.getFileName().toString().endsWith(".class"))
+                                .count();
+                if (numClassFiles == 0) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    private static boolean noticeFileExistsAndIsValid(Path noticeFile, Path jar)
+            throws IOException {
+        if (!Files.exists(noticeFile)) {
+            LOG.error("Missing META-INF/NOTICE in {}", jar);
+            return false;
+        }
+
+        final String noticeFileContents = readFile(noticeFile);
+        if (!noticeFileContents.contains("The Apache Software Foundation")) {
+            LOG.error("The notice file in {} does not contain the expected entries.", jar);
+            return false;
+        }
+
+        return true;
+    }
+
+    private static boolean licenseFileExistsAndIsValid(Path licenseFile, Path jar)
+            throws IOException {
+        if (!Files.exists(licenseFile)) {
+            LOG.error("Missing META-INF/LICENSE in {}", jar);
+            return false;
+        }
+
+        final String licenseFileContents = readFile(licenseFile);
+        if (!licenseFileContents.contains("Apache License")
+                || !licenseFileContents.contains("Version 2.0, January 2004")) {
+            LOG.error("The license file in {} does not contain the expected entries.", jar);
+            return false;
+        }
+
+        return true;
+    }
+
+    private static int getFilesWithIncompatibleLicenses(Path jar, Path jarRoot) throws IOException {
+        // patterns are based on https://www.apache.org/legal/resolved.html#category-x
+        return findNonBinaryFilesContainingText(
+                jar,
+                jarRoot,
+                asPatterns(
+                        "Binary Code License",
+                        "Intel Simplified Software License",
+                        "JSR 275",
+                        "Microsoft Limited Public License",
+                        "Amazon Software License",
+                        // Java SDK for Satori RTM license
+                        "as necessary for your use of Satori services",
+                        "REDIS SOURCE AVAILABLE LICENSE",
+                        "Booz Allen Public License",
+                        "Confluent Community License Agreement Version 1.0",
+                        // “Commons Clause” License Condition v1.0
+                        "the License does not grant to you, the right to Sell the Software.",
+                        "Sun Community Source License Version 3.0",
+                        "GNU General Public License",
+                        "GNU Affero General Public License",
+                        "GNU Lesser General Public License",
+                        "Q Public License",
+                        "Sleepycat License",
+                        "Server Side Public License",
+                        "Code Project Open License",
+                        // BSD 4-Clause
+                        " All advertising materials mentioning features or use of this software must display the following acknowledgement",
+                        // Facebook Patent clause v1
+                        "The license granted hereunder will terminate, automatically and without notice, for anyone that makes any claim",
+                        // Facebook Patent clause v2
+                        "The license granted hereunder will terminate, automatically and without notice, if you (or any of your subsidiaries, corporate affiliates or agents) initiate directly or indirectly, or take a direct financial interest in, any Patent Assertion: (i) against Facebook",
+                        "Netscape Public License",
+                        "SOLIPSISTIC ECLIPSE PUBLIC LICENSE",
+                        // DON'T BE A DICK PUBLIC LICENSE
+                        "Do whatever you like with the original work, just don't be a dick.",
+                        // JSON License
+                        "The Software shall be used for Good, not Evil.",
+                        // can sometimes be found in "funny" licenses
+                        "Don’t be evil"));
+    }
+
+    private static Collection<Pattern> asPatterns(String... texts) {
+        return Stream.of(texts)
+                .map(JarFileChecker::asPatternWithPotentialLineBreaks)
+                .collect(Collectors.toList());
+    }
+
+    private static Pattern asPatternWithPotentialLineBreaks(String text) {
+        // allows word sequences to be separated by whitespace, line-breaks and comments(//, #)
+        return Pattern.compile(text.toLowerCase(Locale.ROOT).replaceAll(" ", " ?\\\\R?[\\\\s/#]*"));
+    }
+
+    private static int findNonBinaryFilesContainingText(
+            Path jar, Path jarRoot, Collection<Pattern> forbidden) throws IOException {
+        try (Stream<Path> files = Files.walk(jarRoot)) {
+            return files.filter(path -> !path.equals(jarRoot))
+                    .filter(path -> !Files.isDirectory(path))
+                    .filter(JarFileChecker::isNoClassFile)
+                    // frequent false-positives due to dual-licensing; generated by maven
+                    .filter(path -> !getFileName(path).equals("dependencies"))
+                    // false-positives due to dual-licensing; use startsWith to cover .txt/.md files
+                    .filter(path -> !getFileName(path).startsWith("license"))
+                    // false-positives due to optional components; startsWith covers .txt/.md files
+                    .filter(path -> !getFileName(path).startsWith("notice"))
+                    // dual-licensed under GPL 2 and CDDL 1.1
+                    // contained in hadoop/presto S3 FS and paimon-dist
+                    .filter(path -> !pathStartsWith(path, "/META-INF/versions/11/javax/xml/bind"))
+                    .filter(path -> !isJavaxManifest(jar, path))
+                    // dual-licensed under GPL 2 and EPL 2.0
+                    // contained in sql-avro-confluent-registry
+                    .filter(path -> !pathStartsWith(path, "/org/glassfish/jersey/internal"))
+                    .map(
+                            path -> {
+                                try {
+                                    final String fileContents;
+                                    try {
+                                        fileContents = readFile(path).toLowerCase(Locale.ROOT);
+                                    } catch (MalformedInputException mie) {
+                                        // binary file
+                                        return 0;
+                                    }
+
+                                    int violations = 0;
+                                    for (Pattern text : forbidden) {
+                                        if (text.matcher(fileContents).find()) {
+                                            // do not count individual violations because it can be
+                                            // confusing when checking with aliases for the same
+                                            // license
+                                            violations = 1;
+                                            LOG.error(
+                                                    "File '{}' in jar '{}' contains match with forbidden regex '{}'.",
+                                                    path,
+                                                    jar,
+                                                    text);
+                                        }
+                                    }
+                                    return violations;
+                                } catch (IOException e) {
+                                    throw new RuntimeException(
+                                            String.format(
+                                                    "Could not read contents of file '%s' in jar '%s'.",
+                                                    path, jar),
+                                            e);
+                                }
+                            })
+                    .reduce(Integer::sum)
+                    .orElse(0);
+        }
+    }
+
+    private static int getNumLicenseFilesOutsideMetaInfDirectory(Path jar, Path jarRoot)
+            throws IOException {
+        try (Stream<Path> files = Files.walk(jarRoot)) {
+            /*
+             * LICENSE or NOTICE files found outside of the META-INF directory are most likely shading mistakes (we are including the files from other dependencies, thus providing an invalid LICENSE file)
+             *
+             * <p>In such a case, we recommend updating the shading exclusions, and adding the license file to META-INF/licenses.
+             */
+            final List<String> filesWithIssues =
+                    files.filter(path -> !path.equals(jarRoot))
+                            .filter(
+                                    path ->
+                                            getFileName(path).contains("license")
+                                                    || getFileName(path).contains("notice"))
+                            .filter(
+                                    path ->
+                                            !Files.isDirectory(
+                                                    path)) // ignore directories, e.g. "license/"
+                            .filter(JarFileChecker::isNoClassFile) // some class files contain
+                            // LICENSE in their name
+                            .filter(
+                                    path ->
+                                            !getFileName(path)
+                                                    .endsWith(".ftl")) // a false positive in
+                            // python
+                            .map(Path::toString)
+                            .filter(
+                                    path ->
+                                            !path.contains(
+                                                    "META-INF")) // license files in META-INF are
+                            // expected
+                            .filter(
+                                    path ->
+                                            !path.endsWith(
+                                                    "web/3rdpartylicenses.txt")) // a false positive
+                            // in
+                            // web
+                            .collect(Collectors.toList());
+            for (String fileWithIssue : filesWithIssues) {
+                LOG.error(
+                        "Jar file {} contains a LICENSE file in an unexpected location: {}",
+                        jar,
+                        fileWithIssue);
+            }
+            return filesWithIssues.size();
+        }
+    }
+
+    private static String getFileName(Path path) {
+        return path.getFileName().toString().toLowerCase();
+    }
+
+    private static boolean pathStartsWith(Path file, String path) {
+        return file.startsWith(file.getFileSystem().getPath(path));
+    }
+
+    private static boolean equals(Path file, String path) {
+        return file.equals(file.getFileSystem().getPath(path));
+    }
+
+    private static boolean isNoClassFile(Path file) {
+        return !getFileName(file).endsWith(".class");
+    }
+
+    private static boolean isJavaxManifest(Path jar, Path potentialManifestFile) {
+        try {
+            return equals(potentialManifestFile, "/META-INF/versions/11/META-INF/MANIFEST.MF")
+                    && readFile(potentialManifestFile).contains("Specification-Title: jaxb-api");
+        } catch (IOException e) {
+            throw new RuntimeException(
+                    String.format(
+                            "Error while reading file %s from jar %s.", potentialManifestFile, jar),
+                    e);
+        }
+    }
+
+    private static String readFile(Path file) throws IOException {
+        return new String(Files.readAllBytes(file), StandardCharsets.UTF_8);
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/LicenseChecker.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/LicenseChecker.java
new file mode 100644
index 0000000..9142f10
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/LicenseChecker.java
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.licensecheck;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.nio.file.Paths;
+
+/** Utility for checking all things related to License and Notice files. */
+public class LicenseChecker {
+    // ---------------------------------------- Launcher ---------------------------------------- //
+
+    private static final Logger LOG = LoggerFactory.getLogger(LicenseChecker.class);
+
+    public static void main(String[] args) throws Exception {
+        if (args.length < 2) {
+            System.out.println(
+                    "Usage: LicenseChecker <pathMavenBuildOutput> <pathPaimonRoot> <pathPaimonDeployed>");
+            System.exit(1);
+        }
+        LOG.warn(
+                "THIS UTILITY IS ONLY CHECKING FOR COMMON LICENSING MISTAKES. A MANUAL CHECK OF THE NOTICE FILES, DEPLOYED ARTIFACTS, ETC. IS STILL NEEDED!");
+
+        int severeIssueCount = NoticeFileChecker.run(new File(args[0]), Paths.get(args[1]));
+
+        severeIssueCount += JarFileChecker.checkPath(Paths.get(args[2]));
+
+        if (severeIssueCount > 0) {
+            LOG.warn("Found a total of {} severe license issues", severeIssueCount);
+
+            System.exit(1);
+        }
+        LOG.info("License check completed without severe issues.");
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java
new file mode 100644
index 0000000..0f71917
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileChecker.java
@@ -0,0 +1,390 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.licensecheck;
+
+import org.apache.paimon.tools.ci.utils.dependency.DependencyParser;
+import org.apache.paimon.tools.ci.utils.deploy.DeployParser;
+import org.apache.paimon.tools.ci.utils.notice.NoticeContents;
+import org.apache.paimon.tools.ci.utils.notice.NoticeParser;
+import org.apache.paimon.tools.ci.utils.shade.ShadeParser;
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import com.google.common.annotations.VisibleForTesting;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nullable;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/** Utility class checking for proper NOTICE files based on the maven build output. */
+public class NoticeFileChecker {
+
+    private static final Logger LOG = LoggerFactory.getLogger(NoticeFileChecker.class);
+
+    private static final List<String> MODULES_DEFINING_EXCESS_DEPENDENCIES =
+            loadFromResources("modules-defining-excess-dependencies.modulelist");
+
+    // Examples:
+    // "- org.apache.htrace:htrace-core:3.1.0-incubating"
+    // or
+    // "This project bundles "net.jcip:jcip-annotations:1.0".
+    private static final Pattern NOTICE_DEPENDENCY_PATTERN =
+            Pattern.compile(
+                    "- ([^ :]+):([^:]+):([^ ]+)($| )|.*bundles \"([^:]+):([^:]+):([^\"]+)\".*");
+
+    static int run(File buildResult, Path root) throws IOException {
+        // parse included dependencies from build output
+        final Map<String, Set<Dependency>> modulesWithBundledDependencies =
+                combineAndFilterPaimonDependencies(
+                        ShadeParser.parseShadeOutput(buildResult.toPath()),
+                        DependencyParser.parseDependencyCopyOutput(buildResult.toPath()));
+
+        final Set<String> deployedModules = DeployParser.parseDeployOutput(buildResult);
+
+        LOG.info(
+                "Extracted "
+                        + deployedModules.size()
+                        + " modules that were deployed and "
+                        + modulesWithBundledDependencies.keySet().size()
+                        + " modules which bundle dependencies with a total of "
+                        + modulesWithBundledDependencies.values().size()
+                        + " dependencies");
+
+        // find modules producing a shaded-jar
+        List<Path> noticeFiles = findNoticeFiles(root);
+        LOG.info("Found {} NOTICE files to check", noticeFiles.size());
+
+        final Map<String, Optional<NoticeContents>> moduleToNotice =
+                noticeFiles.stream()
+                        .collect(
+                                Collectors.toMap(
+                                        NoticeFileChecker::getModuleFromNoticeFile,
+                                        noticeFile -> {
+                                            try {
+                                                return NoticeParser.parseNoticeFile(noticeFile);
+                                            } catch (IOException e) {
+                                                // some machine issue
+                                                throw new RuntimeException(e);
+                                            }
+                                        }));
+
+        return run(modulesWithBundledDependencies, deployedModules, moduleToNotice);
+    }
+
+    @VisibleForTesting
+    static int run(
+            Map<String, Set<Dependency>> modulesWithBundledDependencies,
+            Set<String> deployedModules,
+            Map<String, Optional<NoticeContents>> noticeFiles)
+            throws IOException {
+        int severeIssueCount = 0;
+
+        final Set<String> modulesSkippingDeployment =
+                new HashSet<>(modulesWithBundledDependencies.keySet());
+        modulesSkippingDeployment.removeAll(deployedModules);
+
+        LOG.debug(
+                "The following {} modules are skipping deployment: {}",
+                modulesSkippingDeployment.size(),
+                modulesSkippingDeployment.stream()
+                        .sorted()
+                        .collect(Collectors.joining("\n\t", "\n\t", "")));
+
+        for (String moduleSkippingDeployment : modulesSkippingDeployment) {
+            // TODO: this doesn't work for modules requiring a NOTICE that are bundled indirectly
+            // TODO: via another non-deployed module
+            boolean bundledByDeployedModule =
+                    modulesWithBundledDependencies.entrySet().stream()
+                            .filter(
+                                    entry ->
+                                            entry.getValue().stream()
+                                                    .map(Dependency::getArtifactId)
+                                                    .anyMatch(
+                                                            artifactId ->
+                                                                    artifactId.equals(
+                                                                            moduleSkippingDeployment)))
+                            .anyMatch(entry -> !modulesSkippingDeployment.contains(entry.getKey()));
+
+            if (!bundledByDeployedModule) {
+                modulesWithBundledDependencies.remove(moduleSkippingDeployment);
+            } else {
+                LOG.debug(
+                        "Including module {} in license checks, despite not being deployed, because it is bundled by another deployed module.",
+                        moduleSkippingDeployment);
+            }
+        }
+
+        // check that all required NOTICE files exists
+        severeIssueCount +=
+                ensureRequiredNoticeFiles(modulesWithBundledDependencies, noticeFiles.keySet());
+
+        // check each NOTICE file
+        for (Map.Entry<String, Optional<NoticeContents>> noticeFile : noticeFiles.entrySet()) {
+            severeIssueCount +=
+                    checkNoticeFileAndLogProblems(
+                            modulesWithBundledDependencies,
+                            noticeFile.getKey(),
+                            noticeFile.getValue().orElse(null));
+        }
+
+        return severeIssueCount;
+    }
+
+    private static Map<String, Set<Dependency>> combineAndFilterPaimonDependencies(
+            Map<String, Set<Dependency>> modulesWithBundledDependencies,
+            Map<String, Set<Dependency>> modulesWithCopiedDependencies) {
+
+        final Map<String, Set<Dependency>> combinedAndFiltered = new LinkedHashMap<>();
+
+        Stream.concat(
+                        modulesWithBundledDependencies.entrySet().stream(),
+                        modulesWithCopiedDependencies.entrySet().stream())
+                .forEach(
+                        (entry) -> {
+                            final Set<Dependency> dependencies =
+                                    combinedAndFiltered.computeIfAbsent(
+                                            entry.getKey(), ignored -> new LinkedHashSet<>());
+
+                            for (Dependency dependency : entry.getValue()) {
+                                if (!dependency.getGroupId().contains("org.apache.paimon")) {
+                                    dependencies.add(dependency);
+                                }
+                            }
+                        });
+
+        return combinedAndFiltered;
+    }
+
+    private static int ensureRequiredNoticeFiles(
+            Map<String, Set<Dependency>> modulesWithShadedDependencies,
+            Collection<String> modulesWithNoticeFile) {
+        int severeIssueCount = 0;
+        Set<String> shadingModules = new HashSet<>(modulesWithShadedDependencies.keySet());
+        shadingModules.removeAll(modulesWithNoticeFile);
+        for (String moduleWithoutNotice : shadingModules) {
+            if (modulesWithShadedDependencies.get(moduleWithoutNotice).stream()
+                    .anyMatch(dependency -> !dependency.getGroupId().equals("org.apache.paimon"))) {
+                LOG.error(
+                        "Module {} is missing a NOTICE file. It has shaded dependencies: {}",
+                        moduleWithoutNotice,
+                        modulesWithShadedDependencies.get(moduleWithoutNotice).stream()
+                                .map(Dependency::toString)
+                                .collect(Collectors.joining("\n\t", "\n\t", "")));
+                severeIssueCount++;
+            }
+        }
+        return severeIssueCount;
+    }
+
+    private static String getModuleFromNoticeFile(Path noticeFile) {
+        Path moduleDirectory =
+                noticeFile
+                        .getParent() // META-INF
+                        .getParent() // resources
+                        .getParent() // main
+                        .getParent() // src
+                        .getParent(); // <-- module name
+        return moduleDirectory.getFileName().toString();
+    }
+
+    private static int checkNoticeFileAndLogProblems(
+            Map<String, Set<Dependency>> modulesWithShadedDependencies,
+            String moduleName,
+            @Nullable NoticeContents noticeContents)
+            throws IOException {
+
+        final Map<Severity, List<String>> problemsBySeverity =
+                checkNoticeFile(modulesWithShadedDependencies, moduleName, noticeContents);
+
+        final List<String> severeProblems =
+                problemsBySeverity.getOrDefault(Severity.CRITICAL, Collections.emptyList());
+
+        if (!problemsBySeverity.isEmpty()) {
+            final List<String> toleratedProblems =
+                    problemsBySeverity.getOrDefault(Severity.TOLERATED, Collections.emptyList());
+            final List<String> expectedProblems =
+                    problemsBySeverity.getOrDefault(Severity.SUPPRESSED, Collections.emptyList());
+
+            LOG.info(
+                    "Problems were detected for a NOTICE file.\n" + "\t{}:\n" + "{}{}{}",
+                    moduleName,
+                    convertProblemsToIndentedString(
+                            severeProblems,
+                            "These issue are legally problematic and MUST be fixed:"),
+                    convertProblemsToIndentedString(
+                            toleratedProblems,
+                            "These issues are mistakes that aren't legally problematic. They SHOULD be fixed at some point, but we don't have to:"),
+                    convertProblemsToIndentedString(
+                            expectedProblems, "These issues are assumed to be false-positives:"));
+        }
+
+        return severeProblems.size();
+    }
+
+    @VisibleForTesting
+    static Map<Severity, List<String>> checkNoticeFile(
+            Map<String, Set<Dependency>> modulesWithShadedDependencies,
+            String moduleName,
+            @Nullable NoticeContents noticeContents) {
+
+        final Map<Severity, List<String>> problemsBySeverity = new HashMap<>();
+
+        if (noticeContents == null) {
+            addProblem(problemsBySeverity, Severity.CRITICAL, "The NOTICE file was empty.");
+        } else {
+            // first line must be the module name.
+            if (!noticeContents.getNoticeModuleName().equals(moduleName)) {
+                addProblem(
+                        problemsBySeverity,
+                        Severity.TOLERATED,
+                        String.format(
+                                "First line does not start with module name. firstLine=%s",
+                                noticeContents.getNoticeModuleName()));
+            }
+
+            // collect all declared dependencies from NOTICE file
+            Set<Dependency> declaredDependencies = new HashSet<>();
+            for (Dependency declaredDependency : noticeContents.getDeclaredDependencies()) {
+                if (!declaredDependencies.add(declaredDependency)) {
+                    addProblem(
+                            problemsBySeverity,
+                            Severity.CRITICAL,
+                            String.format("Dependency %s is declared twice.", declaredDependency));
+                }
+            }
+
+            // find all dependencies missing from NOTICE file
+            Collection<Dependency> expectedDependencies =
+                    modulesWithShadedDependencies.getOrDefault(moduleName, Collections.emptySet())
+                            .stream()
+                            .filter(
+                                    dependency ->
+                                            !dependency.getGroupId().equals("org.apache.paimon"))
+                            .collect(Collectors.toList());
+
+            for (Dependency expectedDependency : expectedDependencies) {
+                if (!declaredDependencies.contains(expectedDependency)) {
+                    addProblem(
+                            problemsBySeverity,
+                            Severity.CRITICAL,
+                            String.format("Dependency %s is not listed.", expectedDependency));
+                }
+            }
+
+            boolean moduleDefinesExcessDependencies =
+                    MODULES_DEFINING_EXCESS_DEPENDENCIES.contains(moduleName);
+
+            // find all dependencies defined in NOTICE file, which were not expected
+            for (Dependency declaredDependency : declaredDependencies) {
+                if (!expectedDependencies.contains(declaredDependency)) {
+                    final Severity severity =
+                            moduleDefinesExcessDependencies
+                                    ? Severity.SUPPRESSED
+                                    : Severity.TOLERATED;
+                    addProblem(
+                            problemsBySeverity,
+                            severity,
+                            String.format(
+                                    "Dependency %s is not bundled, but listed.",
+                                    declaredDependency));
+                }
+            }
+        }
+
+        return problemsBySeverity;
+    }
+
+    private static void addProblem(
+            Map<Severity, List<String>> problemsBySeverity, Severity severity, String problem) {
+        problemsBySeverity.computeIfAbsent(severity, ignored -> new ArrayList<>()).add(problem);
+    }
+
+    @VisibleForTesting
+    enum Severity {
+        /** Issues that a legally problematic which must be fixed. */
+        CRITICAL,
+        /** Issues that affect the correctness but aren't legally problematic. */
+        TOLERATED,
+        /** Issues where we intentionally break the rules. */
+        SUPPRESSED
+    }
+
+    private static String convertProblemsToIndentedString(List<String> problems, String header) {
+        return problems.isEmpty()
+                ? ""
+                : problems.stream()
+                        .map(s -> "\t\t\t" + s)
+                        .collect(Collectors.joining("\n", "\t\t " + header + " \n", "\n"));
+    }
+
+    private static List<Path> findNoticeFiles(Path root) throws IOException {
+        return Files.walk(root)
+                .filter(
+                        file -> {
+                            int nameCount = file.getNameCount();
+                            return file.getName(nameCount - 3).toString().equals("resources")
+                                    && file.getName(nameCount - 2).toString().equals("META-INF")
+                                    && file.getName(nameCount - 1).toString().equals("NOTICE");
+                        })
+                .collect(Collectors.toList());
+    }
+
+    private static List<String> loadFromResources(String fileName) {
+        try {
+            try (BufferedReader bufferedReader =
+                    new BufferedReader(
+                            new InputStreamReader(
+                                    Objects.requireNonNull(
+                                            NoticeFileChecker.class.getResourceAsStream(
+                                                    "/" + fileName))))) {
+
+                List<String> result =
+                        bufferedReader
+                                .lines()
+                                .filter(line -> !line.startsWith("#") && !line.isEmpty())
+                                .collect(Collectors.toList());
+                LOG.debug("Loaded {} items from resource {}", result.size(), fileName);
+                return result;
+            }
+        } catch (Throwable e) {
+            // wrap anything in a RuntimeException to be callable from the static initializer
+            throw new RuntimeException("Error while loading resource", e);
+        }
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/suffixcheck/ScalaSuffixChecker.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/suffixcheck/ScalaSuffixChecker.java
new file mode 100644
index 0000000..544fb8b
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/suffixcheck/ScalaSuffixChecker.java
@@ -0,0 +1,262 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.suffixcheck;
+
+import org.apache.paimon.tools.ci.utils.dependency.DependencyParser;
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+import org.apache.paimon.tools.ci.utils.shared.DependencyTree;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/** Utility for checking the presence/absence of scala-suffixes. */
+public class ScalaSuffixChecker {
+    private static final Logger LOG = LoggerFactory.getLogger(ScalaSuffixChecker.class);
+
+    // [INFO] --- maven-dependency-plugin:3.1.1:tree (default-cli) @ paimon-annotations ---
+    private static final Pattern moduleNamePattern =
+            Pattern.compile(".* --- maven-dependency-plugin.* @ (.*) ---.*");
+
+    // [INFO] +- junit:junit:jar:4.13.2:test
+    // [INFO] |  \- org.hamcrest:hamcrest-core:jar:1.3:test
+    // [INFO] \- org.apache.logging.log4j:log4j-1.2-api:jar:2.14.1:test
+    private static final Pattern blockPattern = Pattern.compile(".* [+|\\\\].*");
+
+    // [INFO] +- org.scala-lang:scala-reflect:jar:2.11.12:test
+    private static final Pattern scalaSuffixPattern = Pattern.compile("_2.1[0-9]");
+
+    private static final Set<String> EXCLUDED_MODULES =
+            new HashSet<>(
+                    Arrays.asList());
+
+    public static void main(String[] args) throws IOException {
+        if (args.length < 2) {
+            System.out.println("Usage: ScalaSuffixChecker <pathMavenBuildOutput> <pathPaimonRoot>");
+            System.exit(1);
+        }
+
+        final Path mavenOutputPath = Paths.get(args[0]);
+        final Path paimonRootPath = Paths.get(args[1]);
+
+        final ParseResult parseResult = parseMavenOutput(mavenOutputPath);
+        if (parseResult.getCleanModules().isEmpty()) {
+            LOG.error("Parsing found 0 scala-free modules; the parsing is likely broken.");
+            System.exit(1);
+        }
+        if (parseResult.getInfectedModules().isEmpty()) {
+            LOG.error("Parsing found 0 scala-dependent modules; the parsing is likely broken.");
+            System.exit(1);
+        }
+
+        final Collection<String> violations = checkScalaSuffixes(parseResult, paimonRootPath);
+
+        if (!violations.isEmpty()) {
+            LOG.error(
+                    "Violations found:{}",
+                    violations.stream().collect(Collectors.joining("\n\t", "\n\t", "")));
+            System.exit(1);
+        }
+    }
+
+    private static ParseResult parseMavenOutput(final Path path) throws IOException {
+        final Set<String> cleanModules = new HashSet<>();
+        final Set<String> infectedModules = new HashSet<>();
+
+        final Map<String, DependencyTree> dependenciesByModule =
+                DependencyParser.parseDependencyTreeOutput(path);
+
+        for (String module : dependenciesByModule.keySet()) {
+            final String moduleName = stripScalaSuffix(module);
+            if (isExcluded(moduleName)) {
+                continue;
+            }
+            LOG.trace("Processing module '{}'.", moduleName);
+
+            final List<Dependency> dependencies =
+                    dependenciesByModule.get(module).flatten().collect(Collectors.toList());
+
+            boolean infected = false;
+            for (Dependency dependency : dependencies) {
+                final boolean dependsOnScala = dependsOnScala(dependency);
+                final boolean isTestDependency = dependency.getScope().get().equals("test");
+                final boolean isExcluded = isExcluded(dependency.getArtifactId());
+                LOG.trace("\tdependency:{}", dependency);
+                LOG.trace("\t\tdepends-on-scala:{}", dependsOnScala);
+                LOG.trace("\t\tis-test-dependency:{}", isTestDependency);
+                LOG.trace("\t\tis-excluded:{}", isExcluded);
+                if (dependsOnScala && !isTestDependency && !isExcluded) {
+                    LOG.trace("\t\tOutbreak detected at {}!", moduleName);
+                    infected = true;
+                }
+            }
+
+            if (infected) {
+                infectedModules.add(moduleName);
+            } else {
+                cleanModules.add(moduleName);
+            }
+        }
+
+        return new ParseResult(cleanModules, infectedModules);
+    }
+
+    private static String stripScalaSuffix(final String moduleName) {
+        final int i = moduleName.indexOf("_2.");
+        return i > 0 ? moduleName.substring(0, i) : moduleName;
+    }
+
+    private static boolean dependsOnScala(final Dependency dependency) {
+        return dependency.getGroupId().contains("org.scala-lang")
+                || scalaSuffixPattern.matcher(dependency.getArtifactId()).find();
+    }
+
+    private static Collection<String> checkScalaSuffixes(
+            final ParseResult parseResult, Path paimonRootPath) throws IOException {
+        final Collection<String> violations = new ArrayList<>();
+
+        // exclude e2e modules and paimon-docs for convenience as they
+        // a) are not deployed during a release
+        // b) exist only for dev purposes
+        // c) no-one should depend on them
+        final Collection<String> excludedModules = new ArrayList<>();
+        excludedModules.add("paimon-docs");
+        excludedModules.addAll(getEndToEndTestModules(paimonRootPath));
+
+        for (String excludedModule : excludedModules) {
+            parseResult.getCleanModules().remove(excludedModule);
+            parseResult.getInfectedModules().remove(excludedModule);
+        }
+
+        violations.addAll(checkCleanModules(parseResult.getCleanModules(), paimonRootPath));
+        violations.addAll(checkInfectedModules(parseResult.getInfectedModules(), paimonRootPath));
+
+        return violations;
+    }
+
+    private static Collection<String> getEndToEndTestModules(Path paimonRootPath)
+            throws IOException {
+        try (Stream<Path> pathStream =
+                Files.walk(paimonRootPath.resolve("paimon-e2e-tests"), 5)) {
+            return pathStream
+                    .filter(path -> path.getFileName().toString().equals("pom.xml"))
+                    .map(path -> path.getParent().getFileName().toString())
+                    .collect(Collectors.toList());
+        }
+    }
+
+    private static Collection<String> checkCleanModules(
+            Collection<String> modules, Path paimonRootPath) throws IOException {
+        return checkModules(
+                modules,
+                paimonRootPath,
+                "_${scala.binary.version}",
+                "Scala-free module '%s' is referenced with scala suffix in '%s'.");
+    }
+
+    private static Collection<String> checkInfectedModules(
+            Collection<String> modules, Path paimonRootPath) throws IOException {
+        return checkModules(
+                modules,
+                paimonRootPath,
+                "",
+                "Scala-dependent module '%s' is referenced without scala suffix in '%s'.");
+    }
+
+    private static Collection<String> checkModules(
+            Collection<String> modules,
+            Path paimonRootPath,
+            String moduleSuffix,
+            String violationTemplate)
+            throws IOException {
+
+        final ArrayList<String> sortedModules = new ArrayList<>(modules);
+        sortedModules.sort(String::compareTo);
+
+        final Collection<String> violations = new ArrayList<>();
+        for (String module : sortedModules) {
+            int numPreviousViolations = violations.size();
+            try (Stream<Path> pathStream = Files.walk(paimonRootPath, 3)) {
+                final List<Path> pomFiles =
+                        pathStream
+                                .filter(path -> path.getFileName().toString().equals("pom.xml"))
+                                .collect(Collectors.toList());
+
+                for (Path pomFile : pomFiles) {
+                    try (Stream<String> lines = Files.lines(pomFile, StandardCharsets.UTF_8)) {
+                        final boolean existsCleanReference =
+                                lines.anyMatch(
+                                        line ->
+                                                line.contains(
+                                                        module + moduleSuffix + "</artifactId>"));
+
+                        if (existsCleanReference) {
+                            violations.add(
+                                    String.format(
+                                            violationTemplate,
+                                            module,
+                                            paimonRootPath.relativize(pomFile)));
+                        }
+                    }
+                }
+            }
+            if (numPreviousViolations == violations.size()) {
+                LOG.info("OK {}", module);
+            }
+        }
+        return violations;
+    }
+
+    private static boolean isExcluded(String line) {
+        return EXCLUDED_MODULES.stream().anyMatch(line::contains);
+    }
+
+    private static class ParseResult {
+
+        private final Set<String> cleanModules;
+        private final Set<String> infectedModules;
+
+        private ParseResult(Set<String> cleanModules, Set<String> infectedModules) {
+            this.cleanModules = cleanModules;
+            this.infectedModules = infectedModules;
+        }
+
+        public Set<String> getCleanModules() {
+            return cleanModules;
+        }
+
+        public Set<String> getInfectedModules() {
+            return infectedModules;
+        }
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParser.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParser.java
new file mode 100644
index 0000000..1ddcc55
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParser.java
@@ -0,0 +1,228 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.dependency;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+import org.apache.paimon.tools.ci.utils.shared.DependencyTree;
+import org.apache.paimon.tools.ci.utils.shared.ParserUtils;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.Stack;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+/** Parsing utils for the Maven dependency plugin. */
+public class DependencyParser {
+
+    private static final Pattern DEPENDENCY_COPY_NEXT_MODULE_PATTERN =
+            Pattern.compile(
+                    ".*maven-dependency-plugin:[^:]+:copy .* @ (?<module>[^ _]+)(?:_[0-9.]+)? --.*");
+
+    private static final Pattern DEPENDENCY_TREE_NEXT_MODULE_PATTERN =
+            Pattern.compile(
+                    ".*maven-dependency-plugin:[^:]+:tree .* @ (?<module>[^ _]+)(?:_[0-9.]+)? --.*");
+
+    /** See {@link DependencyParserTreeTest} for examples. */
+    private static final Pattern DEPENDENCY_TREE_ITEM_PATTERN =
+            Pattern.compile(
+                    ".* +"
+                            + "(?<groupId>.*?):"
+                            + "(?<artifactId>.*?):"
+                            + "(?<type>.*?):"
+                            + "(?:(?<classifier>.*?):)?"
+                            + "(?<version>.*?):"
+                            + "(?<scope>[^ ]*)"
+                            + "(?<optional> \\(optional\\))?");
+
+    /** See {@link DependencyParserCopyTest} for examples. */
+    private static final Pattern DEPENDENCY_COPY_ITEM_PATTERN =
+            Pattern.compile(
+                    ".* Configured Artifact: +"
+                            + "(?<groupId>.*?):"
+                            + "(?<artifactId>.*?):"
+                            + "(?:(?<classifier>.*?):)?"
+                            + "(?<version>.*?):"
+                            + "(?:\\?:)?" // unknown cause; e.g.: javax.xml.bind:jaxb-api:?:jar
+                            + "(?<type>.*)");
+
+    /**
+     * Parses the output of a Maven build where {@code dependency:copy} was used, and returns a set
+     * of copied dependencies for each module.
+     *
+     * <p>The returned dependencies will NEVER contain the scope or optional flag.
+     */
+    public static Map<String, Set<Dependency>> parseDependencyCopyOutput(Path buildOutput)
+            throws IOException {
+        return processLines(buildOutput, DependencyParser::parseDependencyCopyOutput);
+    }
+
+    /**
+     * Parses the output of a Maven build where {@code dependency:tree} was used, and returns a set
+     * of dependencies for each module.
+     */
+    public static Map<String, DependencyTree> parseDependencyTreeOutput(Path buildOutput)
+            throws IOException {
+        return processLines(buildOutput, DependencyParser::parseDependencyTreeOutput);
+    }
+
+    private static <X> X processLines(Path buildOutput, Function<Stream<String>, X> processor)
+            throws IOException {
+        try (Stream<String> lines = Files.lines(buildOutput)) {
+            return processor.apply(lines.filter(line -> line.contains("[INFO]")));
+        }
+    }
+
+    @VisibleForTesting
+    static Map<String, Set<Dependency>> parseDependencyCopyOutput(Stream<String> lines) {
+        return ParserUtils.parsePluginOutput(
+                lines,
+                DEPENDENCY_COPY_NEXT_MODULE_PATTERN,
+                DependencyParser::parseCopyDependencyBlock);
+    }
+
+    @VisibleForTesting
+    static Map<String, DependencyTree> parseDependencyTreeOutput(Stream<String> lines) {
+        return ParserUtils.parsePluginOutput(
+                lines,
+                DEPENDENCY_TREE_NEXT_MODULE_PATTERN,
+                DependencyParser::parseTreeDependencyBlock);
+    }
+
+    private static Set<Dependency> parseCopyDependencyBlock(Iterator<String> block) {
+        final Set<Dependency> dependencies = new LinkedHashSet<>();
+
+        Optional<Dependency> parsedDependency = parseCopyDependency(block.next());
+        while (parsedDependency.isPresent()) {
+            dependencies.add(parsedDependency.get());
+
+            if (block.hasNext()) {
+                parsedDependency = parseCopyDependency(block.next());
+            } else {
+                parsedDependency = Optional.empty();
+            }
+        }
+
+        return dependencies;
+    }
+
+    private static DependencyTree parseTreeDependencyBlock(Iterator<String> block) {
+        // discard one line, which only contains the current module name
+        block.next();
+
+        if (!block.hasNext()) {
+            throw new IllegalStateException("Expected more output from the dependency-plugin.");
+        }
+
+        final DependencyTree dependencies = new DependencyTree();
+
+        final Stack<Dependency> parentStack = new Stack<>();
+        final Stack<Integer> treeDepthStack = new Stack<>();
+        String line = block.next();
+        Optional<Dependency> parsedDependency = parseTreeDependency(line);
+        while (parsedDependency.isPresent()) {
+            int treeDepth = getDepth(line);
+
+            while (!treeDepthStack.isEmpty() && treeDepth <= treeDepthStack.peek()) {
+                parentStack.pop();
+                treeDepthStack.pop();
+            }
+
+            final Dependency dependency = parsedDependency.get();
+
+            if (parentStack.isEmpty()) {
+                dependencies.addDirectDependency(dependency);
+            } else {
+                dependencies.addTransitiveDependencyTo(dependency, parentStack.peek());
+            }
+
+            if (treeDepthStack.isEmpty() || treeDepth > treeDepthStack.peek()) {
+                treeDepthStack.push(treeDepth);
+                parentStack.push(dependency);
+            }
+
+            if (block.hasNext()) {
+                line = block.next();
+                parsedDependency = parseTreeDependency(line);
+            } else {
+                parsedDependency = Optional.empty();
+            }
+        }
+
+        return dependencies;
+    }
+
+    static Optional<Dependency> parseCopyDependency(String line) {
+        Matcher dependencyMatcher = DEPENDENCY_COPY_ITEM_PATTERN.matcher(line);
+        if (!dependencyMatcher.find()) {
+            return Optional.empty();
+        }
+
+        return Optional.of(
+                Dependency.create(
+                        dependencyMatcher.group("groupId"),
+                        dependencyMatcher.group("artifactId"),
+                        dependencyMatcher.group("version"),
+                        dependencyMatcher.group("classifier")));
+    }
+
+    @VisibleForTesting
+    static Optional<Dependency> parseTreeDependency(String line) {
+        Matcher dependencyMatcher = DEPENDENCY_TREE_ITEM_PATTERN.matcher(line);
+        if (!dependencyMatcher.find()) {
+            return Optional.empty();
+        }
+
+        return Optional.of(
+                Dependency.create(
+                        dependencyMatcher.group("groupId"),
+                        dependencyMatcher.group("artifactId"),
+                        dependencyMatcher.group("version"),
+                        dependencyMatcher.group("classifier"),
+                        dependencyMatcher.group("scope"),
+                        dependencyMatcher.group("optional") != null));
+    }
+
+    /**
+     * The depths returned by this method do NOT return a continuous sequence.
+     *
+     * <pre>
+     * +- org.apache.paimon:...
+     * |  +- org.apache.paimon:...
+     * |  |  \- org.apache.paimon:...
+     * ...
+     * </pre>
+     */
+    private static int getDepth(String line) {
+        final int level = line.indexOf('+');
+        if (level != -1) {
+            return level;
+        }
+        return line.indexOf('\\');
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/deploy/DeployParser.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/deploy/DeployParser.java
new file mode 100644
index 0000000..89a3e5e
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/deploy/DeployParser.java
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.deploy;
+
+import org.apache.paimon.tools.ci.utils.shared.ParserUtils;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/** Parsing utils for the Maven deploy plugin. */
+public class DeployParser {
+
+    // Examples:
+    //
+    // Deployment on CI with alternative repo
+    // [INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ paimon-parent ---
+    // [INFO] Using alternate deployment repository.../tmp/paimon-validation-deployment
+    //
+    // Skipped deployment:
+    // [INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ paimon-parent ---
+    // [INFO] Skipping artifact deployment
+    private static final Pattern DEPLOY_MODULE_PATTERN =
+            Pattern.compile(
+                    ".maven-deploy-plugin:.*:deploy .* @ (?<module>[^ _]+)(?:_[0-9.]+)? --.*");
+
+    /**
+     * Parses the output of a Maven build where {@code deploy:deploy} was used, and returns a set of
+     * deployed modules.
+     */
+    public static Set<String> parseDeployOutput(File buildResult) throws IOException {
+        try (Stream<String> linesStream = Files.lines(buildResult.toPath())) {
+            return parseDeployOutput(linesStream);
+        }
+    }
+
+    @VisibleForTesting
+    static Set<String> parseDeployOutput(Stream<String> lines) {
+        return ParserUtils.parsePluginOutput(
+                        lines, DEPLOY_MODULE_PATTERN, DeployParser::parseDeployBlock)
+                .entrySet().stream()
+                .filter(Map.Entry::getValue)
+                .map(Map.Entry::getKey)
+                .collect(Collectors.toSet());
+    }
+
+    private static boolean parseDeployBlock(Iterator<String> block) {
+        return block.hasNext() && !block.next().contains("Skipping artifact deployment");
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeContents.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeContents.java
new file mode 100644
index 0000000..8dadaa3
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeContents.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.notice;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import java.util.Collection;
+
+/** Represents the parsed contents of a NOTICE file. */
+public class NoticeContents {
+    private final String noticeModuleName;
+    private final Collection<Dependency> declaredDependencies;
+
+    public NoticeContents(String noticeModuleName, Collection<Dependency> declaredDependencies) {
+        this.noticeModuleName = noticeModuleName;
+        this.declaredDependencies = declaredDependencies;
+    }
+
+    public String getNoticeModuleName() {
+        return noticeModuleName;
+    }
+
+    public Collection<Dependency> getDeclaredDependencies() {
+        return declaredDependencies;
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeParser.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeParser.java
new file mode 100644
index 0000000..293dad8
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/notice/NoticeParser.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.notice;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Optional;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/** Parsing utils for NOTICE files. */
+public class NoticeParser {
+
+    // "- org.apache.htrace:htrace-core:3.1.0-incubating"
+    private static final Pattern NOTICE_DEPENDENCY_PATTERN =
+            Pattern.compile(
+                    "- "
+                            + "(?<groupId>[^ ]*?):"
+                            + "(?<artifactId>[^ ]*?):"
+                            + "(?:(?<classifier>[^ ]*?):)?"
+                            + "(?<version>[^ ]*?)"
+                            + "($| )");
+    // "This project bundles "net.jcip:jcip-annotations:1.0".
+    private static final Pattern NOTICE_BUNDLES_DEPENDENCY_PATTERN =
+            Pattern.compile(
+                    ".*bundles \""
+                            + "(?<groupId>[^ ]*?):"
+                            + "(?<artifactId>[^ ]*?):"
+                            + "(?:(?<classifier>[^ ]*?):)?"
+                            + "(?<version>[^ ]*?)"
+                            + "\".*");
+
+    public static Optional<NoticeContents> parseNoticeFile(Path noticeFile) throws IOException {
+        // 1st line contains module name
+        final List<String> noticeContents = Files.readAllLines(noticeFile);
+
+        return parseNoticeFile(noticeContents);
+    }
+
+    @VisibleForTesting
+    static Optional<NoticeContents> parseNoticeFile(List<String> noticeContents) {
+        if (noticeContents.isEmpty()) {
+            return Optional.empty();
+        }
+
+        final String noticeModuleName = noticeContents.get(0);
+
+        Collection<Dependency> declaredDependencies = new ArrayList<>();
+        for (String line : noticeContents) {
+            Optional<Dependency> dependency = tryParsing(NOTICE_DEPENDENCY_PATTERN, line);
+            if (!dependency.isPresent()) {
+                dependency = tryParsing(NOTICE_BUNDLES_DEPENDENCY_PATTERN, line);
+            }
+            dependency.ifPresent(declaredDependencies::add);
+        }
+
+        return Optional.of(new NoticeContents(noticeModuleName, declaredDependencies));
+    }
+
+    private static Optional<Dependency> tryParsing(Pattern pattern, String line) {
+        Matcher matcher = pattern.matcher(line);
+        if (matcher.find()) {
+            String groupId = matcher.group("groupId");
+            String artifactId = matcher.group("artifactId");
+            String version = matcher.group("version");
+            String classifier = matcher.group("classifier");
+            return Optional.of(Dependency.create(groupId, artifactId, version, classifier));
+        }
+        return Optional.empty();
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shade/ShadeParser.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shade/ShadeParser.java
new file mode 100644
index 0000000..3a44bf5
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shade/ShadeParser.java
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shade;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+import org.apache.paimon.tools.ci.utils.shared.ParserUtils;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+/** Utils for parsing the shade-plugin output. */
+public final class ShadeParser {
+
+    private static final Pattern SHADE_NEXT_MODULE_PATTERN =
+            Pattern.compile(
+                    ".*:shade \\((?:shade-paimon|shade-dist|default)\\) @ (?<module>[^ _]+)(?:_[0-9.]+)? --.*");
+
+    private static final Pattern SHADE_INCLUDE_MODULE_PATTERN =
+            Pattern.compile(
+                    ".* "
+                            + "(?<groupId>.*?):"
+                            + "(?<artifactId>.*?):"
+                            + "(?<type>.*?):"
+                            + "(?:(?<classifier>.*?):)?"
+                            + "(?<version>.*?)"
+                            + " in the shaded jar");
+
+    /**
+     * Parses the output of a Maven build where {@code shade:shade} was used, and returns a set of
+     * bundled dependencies for each module.
+     *
+     * <p>The returned dependencies will NEVER contain the scope or optional flag.
+     *
+     * <p>This method only considers the {@code shade-paimon} and {@code shade-dist} executions,
+     * because all artifacts we produce that are either published or referenced are created by these
+     * executions. In other words, all artifacts from other executions are only used internally by
+     * the module that created them.
+     */
+    public static Map<String, Set<Dependency>> parseShadeOutput(Path buildOutput)
+            throws IOException {
+        try (Stream<String> lines = Files.lines(buildOutput)) {
+            return parseShadeOutput(lines);
+        }
+    }
+
+    @VisibleForTesting
+    static Map<String, Set<Dependency>> parseShadeOutput(Stream<String> lines) {
+        return ParserUtils.parsePluginOutput(
+                lines.filter(line -> !line.contains(" Excluding ")),
+                SHADE_NEXT_MODULE_PATTERN,
+                ShadeParser::parseBlock);
+    }
+
+    private static Set<Dependency> parseBlock(Iterator<String> block) {
+        final Set<Dependency> dependencies = new LinkedHashSet<>();
+
+        Optional<Dependency> parsedDependency = parseDependency(block.next());
+        while (parsedDependency.isPresent()) {
+            dependencies.add(parsedDependency.get());
+
+            if (block.hasNext()) {
+                parsedDependency = parseDependency(block.next());
+            } else {
+                parsedDependency = Optional.empty();
+            }
+        }
+
+        return dependencies;
+    }
+
+    @VisibleForTesting
+    static Optional<Dependency> parseDependency(String line) {
+        Matcher dependencyMatcher = SHADE_INCLUDE_MODULE_PATTERN.matcher(line);
+        if (!dependencyMatcher.find()) {
+            return Optional.empty();
+        }
+
+        return Optional.of(
+                Dependency.create(
+                        dependencyMatcher.group("groupId"),
+                        dependencyMatcher.group("artifactId"),
+                        dependencyMatcher.group("version"),
+                        dependencyMatcher.group("classifier")));
+    }
+
+    private ShadeParser() {}
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/Dependency.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/Dependency.java
new file mode 100644
index 0000000..6dae361
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/Dependency.java
@@ -0,0 +1,133 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shared;
+
+import javax.annotation.Nullable;
+import java.util.Objects;
+import java.util.Optional;
+
+/**
+ * Represents a dependency.
+ *
+ * <p>For some properties we return an {@link Optional}, for those that, depending on the plugin
+ * goal, may not be determinable. For example, {@code dependency:copy} never prints the scope or
+ * optional flag.
+ */
+public final class Dependency {
+
+    private final String groupId;
+    private final String artifactId;
+    private final String version;
+    @Nullable private final String classifier;
+    @Nullable private final String scope;
+    @Nullable private final Boolean isOptional;
+
+    private Dependency(
+            String groupId,
+            String artifactId,
+            String version,
+            @Nullable String classifier,
+            @Nullable String scope,
+            @Nullable Boolean isOptional) {
+        this.groupId = Objects.requireNonNull(groupId);
+        this.artifactId = Objects.requireNonNull(artifactId);
+        this.version = Objects.requireNonNull(version);
+        this.classifier = classifier;
+        this.scope = scope;
+        this.isOptional = isOptional;
+    }
+
+    public static Dependency create(
+            String groupId,
+            String artifactId,
+            String version,
+            String classifier,
+            String scope,
+            boolean isOptional) {
+        return new Dependency(
+                groupId,
+                artifactId,
+                version,
+                classifier,
+                Objects.requireNonNull(scope),
+                isOptional);
+    }
+
+    public static Dependency create(
+            String groupId, String artifactId, String version, String classifier) {
+        return new Dependency(groupId, artifactId, version, classifier, null, null);
+    }
+
+    public String getGroupId() {
+        return groupId;
+    }
+
+    public String getArtifactId() {
+        return artifactId;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public Optional<String> getClassifier() {
+        return Optional.ofNullable(classifier);
+    }
+
+    public Optional<String> getScope() {
+        return Optional.ofNullable(scope);
+    }
+
+    public Optional<Boolean> isOptional() {
+        return Optional.ofNullable(isOptional);
+    }
+
+    @Override
+    public String toString() {
+        return groupId
+                + ":"
+                + artifactId
+                + ":"
+                + version
+                + (classifier != null ? ":" + classifier : "")
+                + (scope != null ? ":" + scope : "")
+                + (isOptional != null && isOptional ? " (optional)" : "");
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        Dependency that = (Dependency) o;
+        return Objects.equals(groupId, that.groupId)
+                && Objects.equals(artifactId, that.artifactId)
+                && Objects.equals(version, that.version)
+                && Objects.equals(classifier, that.classifier)
+                && Objects.equals(scope, that.scope)
+                && Objects.equals(isOptional, that.isOptional);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(groupId, artifactId, version, classifier, scope, isOptional);
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/DependencyTree.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/DependencyTree.java
new file mode 100644
index 0000000..a6a5f4d
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/DependencyTree.java
@@ -0,0 +1,123 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shared;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.graph.Traverser;
+
+import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+/**
+ * Represents a dependency tree.
+ *
+ * <p>Every dependency can only occur exactly once.
+ */
+public class DependencyTree {
+
+    private final Map<String, Node> lookup = new LinkedHashMap<>();
+    private final List<Node> directDependencies = new ArrayList<>();
+
+    public void addDirectDependency(Dependency dependency) {
+        final String key = getKey(dependency);
+        if (lookup.containsKey(key)) {
+            return;
+        }
+        final Node node = new Node(dependency, null);
+
+        lookup.put(key, node);
+        directDependencies.add(node);
+    }
+
+    public void addTransitiveDependencyTo(Dependency transitiveDependency, Dependency parent) {
+        final String key = getKey(transitiveDependency);
+        if (lookup.containsKey(key)) {
+            return;
+        }
+        final Node node = lookup.get(getKey(parent)).addTransitiveDependency(transitiveDependency);
+
+        lookup.put(key, node);
+    }
+
+    private static final class Node {
+        private final Dependency dependency;
+        @Nullable private final Node parent;
+        private final List<Node> children = new ArrayList<>();
+
+        private Node(Dependency dependency, @Nullable Node parent) {
+            this.dependency = dependency;
+            this.parent = parent;
+        }
+
+        public Node addTransitiveDependency(Dependency dependency) {
+            final Node node = new Node(dependency, this);
+            this.children.add(node);
+            return node;
+        }
+
+        private boolean isRoot() {
+            return parent == null;
+        }
+    }
+
+    public List<Dependency> getPathTo(Dependency dependency) {
+        final LinkedList<Dependency> path = new LinkedList<>();
+
+        Node node = lookup.get(getKey(dependency));
+        path.addFirst(node.dependency);
+        while (!node.isRoot()) {
+            node = node.parent;
+            path.addFirst(node.dependency);
+        }
+
+        return path;
+    }
+
+    public Stream<Dependency> flatten() {
+        return StreamSupport.stream(
+                        Traverser.<Node>forTree(node -> node.children)
+                                .depthFirstPreOrder(directDependencies)
+                                .spliterator(),
+                        false)
+                .map(node -> node.dependency);
+    }
+
+    /**
+     * We don't use the {@link Dependency} as a key because we don't want lookups to be dependent on
+     * scope or the optional flag.
+     *
+     * @param dependency
+     * @return
+     */
+    @VisibleForTesting
+    static String getKey(Dependency dependency) {
+        return dependency.getGroupId()
+                + ":"
+                + dependency.getArtifactId()
+                + ":"
+                + dependency.getVersion()
+                + ":"
+                + dependency.getClassifier().orElse("(no-classifier)");
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/ParserUtils.java b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/ParserUtils.java
new file mode 100644
index 0000000..5d1e21b
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/java/org/apache/paimon/tools/ci/utils/shared/ParserUtils.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shared;
+
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Stream;
+
+/** Parsing utils. */
+public class ParserUtils {
+
+    /**
+     * Iterates over the given lines, identifying plugin execution blocks with the given pattern and
+     * parses the plugin output with the given parser.
+     *
+     * <p>This method assumes that the given pattern matches at most once for each module.
+     *
+     * <p>The given pattern must include a {@code module} group that captures the module that the
+     * plugin runs on (without the scala suffix!).
+     *
+     * @param lines maven output lines
+     * @param executionLinePattern pattern that matches plugin executions
+     * @param blockParser parser for the plugin block
+     * @return map containing the parser result for each module
+     * @param <D> block parser output
+     */
+    public static <D> Map<String, D> parsePluginOutput(
+            Stream<String> lines,
+            Pattern executionLinePattern,
+            Function<Iterator<String>, D> blockParser) {
+        final Map<String, D> result = new LinkedHashMap<>();
+
+        final Iterator<String> iterator = lines.iterator();
+
+        while (iterator.hasNext()) {
+            Matcher moduleMatcher = executionLinePattern.matcher(iterator.next());
+            while (!moduleMatcher.find()) {
+                if (iterator.hasNext()) {
+                    moduleMatcher = executionLinePattern.matcher(iterator.next());
+                } else {
+                    return result;
+                }
+            }
+            final String currentModule = moduleMatcher.group("module");
+
+            if (!iterator.hasNext()) {
+                throw new IllegalStateException("Expected more output from the plugin.");
+            }
+
+            result.put(currentModule, blockParser.apply(iterator));
+        }
+        return result;
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/main/resources/log4j2.properties b/tools/ci/paimon-ci-tools/src/main/resources/log4j2.properties
new file mode 100644
index 0000000..b0b222b
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/resources/log4j2.properties
@@ -0,0 +1,25 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+rootLogger.level = DEBUG
+rootLogger.appenderRef.console.ref = ConsoleAppender
+
+appender.console.name = ConsoleAppender
+appender.console.type = CONSOLE
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{HH:mm:ss,SSS} %-5p %-60c %x - %m%n
diff --git a/tools/ci/paimon-ci-tools/src/main/resources/modules-defining-excess-dependencies.modulelist b/tools/ci/paimon-ci-tools/src/main/resources/modules-defining-excess-dependencies.modulelist
new file mode 100644
index 0000000..c496e6d
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/main/resources/modules-defining-excess-dependencies.modulelist
@@ -0,0 +1,20 @@
+################################################################################
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+# limitations under the License.
+################################################################################
+
+# This file lists modules which define additional dependencies, not shown by the maven shade plugin output.
+# These are usually undeclared shaded (or otherwise included) dependencies from transitive dependencies.
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/JarFileCheckerTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/JarFileCheckerTest.java
new file mode 100644
index 0000000..15390d5
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/JarFileCheckerTest.java
@@ -0,0 +1,525 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.licensecheck;
+
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.net.URI;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for the {@link JarFileChecker}.
+ *
+ * <p>For dev purposes, generate a deploy-directory with: mvn clean deploy
+ * -DaltDeploymentRepository=snapshot-repo::default::file:/tmp/paimon-deployment -DskipTests
+ * -Drat.skip and add a test checking that directory.
+ */
+class JarFileCheckerTest {
+
+    private static final List<String> VALID_NOTICE_PATH = Arrays.asList("META-INF", "NOTICE");
+    private static final List<String> VALID_LICENSE_PATH = Arrays.asList("META-INF", "LICENSE");
+
+    @Test
+    void testValidJarAccepted(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH))))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testRejectedOnMissingNoticeFile(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnInvalidNoticeFile(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(INVALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnNoticeFileInRoot(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_NOTICE_CONTENTS,
+                                                Arrays.asList("some_custom_notice")))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnMissingLicenseFile(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnInvalidLicenseFile(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(
+                                                INVALID_LICENSE_CONTENTS, VALID_LICENSE_PATH))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnLicenseFileInRoot(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS,
+                                                Arrays.asList("some_custom_license")))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRejectedOnLicenseFileInSomeDirectory(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS,
+                                                Arrays.asList(
+                                                        "some",
+                                                        "directory",
+                                                        "some_custom_license")))))
+                .isEqualTo(1);
+    }
+
+    @Disabled(
+            "Currently not checked, but we may want to enforce this in the future to reduce ambiguity.")
+    void testRejectedOnAdditionalLicenseFileInMetaInf(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                VALID_LICENSE_CONTENTS,
+                                                Arrays.asList("META-INF", "LICENSE.txt")))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testIgnoreLicenseDirectories(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.directoryEntry(
+                                                Arrays.asList("some", "license", "directory")))))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testIgnoreClassFiles(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                "content",
+                                                Arrays.asList("SomeLicenseClass.class")))))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testIgnoreFtlFiles(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                "content", Arrays.asList("SomeLicenseFile.ftl")))))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testIgnoreWebThirdPartyLicenses(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                "class contents",
+                                                Arrays.asList("web", "3rdpartylicenses.txt")))))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testForbiddenLGPLongTextDetected(@TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                "some GNU Lesser General public License text",
+                                                Collections.singletonList("some_file.txt")))))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testForbiddenLGPMultiLineLongTextWithCommentAndLeadingWhitespaceDetected(
+            @TempDir Path tempDir) throws Exception {
+        assertThat(
+                        JarFileChecker.checkJar(
+                                createJar(
+                                        tempDir,
+                                        Entry.fileEntry(VALID_NOTICE_CONTENTS, VALID_NOTICE_PATH),
+                                        Entry.fileEntry(VALID_LICENSE_CONTENTS, VALID_LICENSE_PATH),
+                                        Entry.fileEntry(
+                                                "some GNU Lesser General public \n\t\t//#License text",
+                                                Collections.singletonList("some_file.txt")))))
+                .isEqualTo(1);
+    }
+
+    private static class Entry {
+        final String contents;
+        final List<String> path;
+        final boolean isDirectory;
+
+        public static Entry directoryEntry(List<String> path) {
+            return new Entry("", path, true);
+        }
+
+        public static Entry fileEntry(String contents, List<String> path) {
+            return new Entry(contents, path, false);
+        }
+
+        private Entry(String contents, List<String> path, boolean isDirectory) {
+            this.contents = contents;
+            this.path = path;
+            this.isDirectory = isDirectory;
+        }
+    }
+
+    private static Path createJar(Path tempDir, Entry... entries) throws Exception {
+        final Path path = tempDir.resolve(UUID.randomUUID().toString() + ".jar");
+
+        final URI uriWithoutScheme = path.toUri();
+
+        final URI uri =
+                new URI(
+                        "jar:file",
+                        uriWithoutScheme.getHost(),
+                        uriWithoutScheme.getPath(),
+                        uriWithoutScheme.getFragment());
+
+        // causes FileSystems#newFileSystem to automatically create a valid zip file
+        // this is easier than manually creating a valid empty zip file manually
+        final Map<String, String> env = new HashMap<>();
+        env.put("create", "true");
+
+        try (FileSystem zip = FileSystems.newFileSystem(uri, env)) {
+            // shortcut to getting the single root
+            final Path root = zip.getPath("").toAbsolutePath();
+            for (Entry entry : entries) {
+                final Path zipPath =
+                        root.resolve(
+                                zip.getPath(
+                                        entry.path.get(0),
+                                        entry.path
+                                                .subList(1, entry.path.size())
+                                                .toArray(new String[] {})));
+                if (entry.isDirectory) {
+                    Files.createDirectories(zipPath);
+                } else {
+                    Files.createDirectories(zipPath.getParent());
+                    Files.write(zipPath, entry.contents.getBytes());
+                }
+            }
+        }
+        return path;
+    }
+
+    private static final String INVALID_NOTICE_CONTENTS = "" + "invalid";
+
+    private static final String VALID_NOTICE_CONTENTS =
+            ""
+                    + "Paimon : SomeModule\n"
+                    + "Copyright 2014-2020 The Apache Software Foundation\n"
+                    + "\n"
+                    + "This product includes software developed at\n"
+                    + "The Apache Software Foundation (http://www.apache.org/).";
+
+    private static final String INVALID_LICENSE_CONTENTS = "" + "invalid";
+
+    private static final String VALID_LICENSE_CONTENTS =
+            ""
+                    + "\n"
+                    + "                                 Apache License\n"
+                    + "                           Version 2.0, January 2004\n"
+                    + "                        http://www.apache.org/licenses/\n"
+                    + "\n"
+                    + "   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION\n"
+                    + "\n"
+                    + "   1. Definitions.\n"
+                    + "\n"
+                    + "      \"License\" shall mean the terms and conditions for use, reproduction,\n"
+                    + "      and distribution as defined by Sections 1 through 9 of this document.\n"
+                    + "\n"
+                    + "      \"Licensor\" shall mean the copyright owner or entity authorized by\n"
+                    + "      the copyright owner that is granting the License.\n"
+                    + "\n"
+                    + "      \"Legal Entity\" shall mean the union of the acting entity and all\n"
+                    + "      other entities that control, are controlled by, or are under common\n"
+                    + "      control with that entity. For the purposes of this definition,\n"
+                    + "      \"control\" means (i) the power, direct or indirect, to cause the\n"
+                    + "      direction or management of such entity, whether by contract or\n"
+                    + "      otherwise, or (ii) ownership of fifty percent (50%) or more of the\n"
+                    + "      outstanding shares, or (iii) beneficial ownership of such entity.\n"
+                    + "\n"
+                    + "      \"You\" (or \"Your\") shall mean an individual or Legal Entity\n"
+                    + "      exercising permissions granted by this License.\n"
+                    + "\n"
+                    + "      \"Source\" form shall mean the preferred form for making modifications,\n"
+                    + "      including but not limited to software source code, documentation\n"
+                    + "      source, and configuration files.\n"
+                    + "\n"
+                    + "      \"Object\" form shall mean any form resulting from mechanical\n"
+                    + "      transformation or translation of a Source form, including but\n"
+                    + "      not limited to compiled object code, generated documentation,\n"
+                    + "      and conversions to other media types.\n"
+                    + "\n"
+                    + "      \"Work\" shall mean the work of authorship, whether in Source or\n"
+                    + "      Object form, made available under the License, as indicated by a\n"
+                    + "      copyright notice that is included in or attached to the work\n"
+                    + "      (an example is provided in the Appendix below).\n"
+                    + "\n"
+                    + "      \"Derivative Works\" shall mean any work, whether in Source or Object\n"
+                    + "      form, that is based on (or derived from) the Work and for which the\n"
+                    + "      editorial revisions, annotations, elaborations, or other modifications\n"
+                    + "      represent, as a whole, an original work of authorship. For the purposes\n"
+                    + "      of this License, Derivative Works shall not include works that remain\n"
+                    + "      separable from, or merely link (or bind by name) to the interfaces of,\n"
+                    + "      the Work and Derivative Works thereof.\n"
+                    + "\n"
+                    + "      \"Contribution\" shall mean any work of authorship, including\n"
+                    + "      the original version of the Work and any modifications or additions\n"
+                    + "      to that Work or Derivative Works thereof, that is intentionally\n"
+                    + "      submitted to Licensor for inclusion in the Work by the copyright owner\n"
+                    + "      or by an individual or Legal Entity authorized to submit on behalf of\n"
+                    + "      the copyright owner. For the purposes of this definition, \"submitted\"\n"
+                    + "      means any form of electronic, verbal, or written communication sent\n"
+                    + "      to the Licensor or its representatives, including but not limited to\n"
+                    + "      communication on electronic mailing lists, source code control systems,\n"
+                    + "      and issue tracking systems that are managed by, or on behalf of, the\n"
+                    + "      Licensor for the purpose of discussing and improving the Work, but\n"
+                    + "      excluding communication that is conspicuously marked or otherwise\n"
+                    + "      designated in writing by the copyright owner as \"Not a Contribution.\"\n"
+                    + "\n"
+                    + "      \"Contributor\" shall mean Licensor and any individual or Legal Entity\n"
+                    + "      on behalf of whom a Contribution has been received by Licensor and\n"
+                    + "      subsequently incorporated within the Work.\n"
+                    + "\n"
+                    + "   2. Grant of Copyright License. Subject to the terms and conditions of\n"
+                    + "      this License, each Contributor hereby grants to You a perpetual,\n"
+                    + "      worldwide, non-exclusive, no-charge, royalty-free, irrevocable\n"
+                    + "      copyright license to reproduce, prepare Derivative Works of,\n"
+                    + "      publicly display, publicly perform, sublicense, and distribute the\n"
+                    + "      Work and such Derivative Works in Source or Object form.\n"
+                    + "\n"
+                    + "   3. Grant of Patent License. Subject to the terms and conditions of\n"
+                    + "      this License, each Contributor hereby grants to You a perpetual,\n"
+                    + "      worldwide, non-exclusive, no-charge, royalty-free, irrevocable\n"
+                    + "      (except as stated in this section) patent license to make, have made,\n"
+                    + "      use, offer to sell, sell, import, and otherwise transfer the Work,\n"
+                    + "      where such license applies only to those patent claims licensable\n"
+                    + "      by such Contributor that are necessarily infringed by their\n"
+                    + "      Contribution(s) alone or by combination of their Contribution(s)\n"
+                    + "      with the Work to which such Contribution(s) was submitted. If You\n"
+                    + "      institute patent litigation against any entity (including a\n"
+                    + "      cross-claim or counterclaim in a lawsuit) alleging that the Work\n"
+                    + "      or a Contribution incorporated within the Work constitutes direct\n"
+                    + "      or contributory patent infringement, then any patent licenses\n"
+                    + "      granted to You under this License for that Work shall terminate\n"
+                    + "      as of the date such litigation is filed.\n"
+                    + "\n"
+                    + "   4. Redistribution. You may reproduce and distribute copies of the\n"
+                    + "      Work or Derivative Works thereof in any medium, with or without\n"
+                    + "      modifications, and in Source or Object form, provided that You\n"
+                    + "      meet the following conditions:\n"
+                    + "\n"
+                    + "      (a) You must give any other recipients of the Work or\n"
+                    + "          Derivative Works a copy of this License; and\n"
+                    + "\n"
+                    + "      (b) You must cause any modified files to carry prominent notices\n"
+                    + "          stating that You changed the files; and\n"
+                    + "\n"
+                    + "      (c) You must retain, in the Source form of any Derivative Works\n"
+                    + "          that You distribute, all copyright, patent, trademark, and\n"
+                    + "          attribution notices from the Source form of the Work,\n"
+                    + "          excluding those notices that do not pertain to any part of\n"
+                    + "          the Derivative Works; and\n"
+                    + "\n"
+                    + "      (d) If the Work includes a \"NOTICE\" text file as part of its\n"
+                    + "          distribution, then any Derivative Works that You distribute must\n"
+                    + "          include a readable copy of the attribution notices contained\n"
+                    + "          within such NOTICE file, excluding those notices that do not\n"
+                    + "          pertain to any part of the Derivative Works, in at least one\n"
+                    + "          of the following places: within a NOTICE text file distributed\n"
+                    + "          as part of the Derivative Works; within the Source form or\n"
+                    + "          documentation, if provided along with the Derivative Works; or,\n"
+                    + "          within a display generated by the Derivative Works, if and\n"
+                    + "          wherever such third-party notices normally appear. The contents\n"
+                    + "          of the NOTICE file are for informational purposes only and\n"
+                    + "          do not modify the License. You may add Your own attribution\n"
+                    + "          notices within Derivative Works that You distribute, alongside\n"
+                    + "          or as an addendum to the NOTICE text from the Work, provided\n"
+                    + "          that such additional attribution notices cannot be construed\n"
+                    + "          as modifying the License.\n"
+                    + "\n"
+                    + "      You may add Your own copyright statement to Your modifications and\n"
+                    + "      may provide additional or different license terms and conditions\n"
+                    + "      for use, reproduction, or distribution of Your modifications, or\n"
+                    + "      for any such Derivative Works as a whole, provided Your use,\n"
+                    + "      reproduction, and distribution of the Work otherwise complies with\n"
+                    + "      the conditions stated in this License.\n"
+                    + "\n"
+                    + "   5. Submission of Contributions. Unless You explicitly state otherwise,\n"
+                    + "      any Contribution intentionally submitted for inclusion in the Work\n"
+                    + "      by You to the Licensor shall be under the terms and conditions of\n"
+                    + "      this License, without any additional terms or conditions.\n"
+                    + "      Notwithstanding the above, nothing herein shall supersede or modify\n"
+                    + "      the terms of any separate license agreement you may have executed\n"
+                    + "      with Licensor regarding such Contributions.\n"
+                    + "\n"
+                    + "   6. Trademarks. This License does not grant permission to use the trade\n"
+                    + "      names, trademarks, service marks, or product names of the Licensor,\n"
+                    + "      except as required for reasonable and customary use in describing the\n"
+                    + "      origin of the Work and reproducing the content of the NOTICE file.\n"
+                    + "\n"
+                    + "   7. Disclaimer of Warranty. Unless required by applicable law or\n"
+                    + "      agreed to in writing, Licensor provides the Work (and each\n"
+                    + "      Contributor provides its Contributions) on an \"AS IS\" BASIS,\n"
+                    + "      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or\n"
+                    + "      implied, including, without limitation, any warranties or conditions\n"
+                    + "      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A\n"
+                    + "      PARTICULAR PURPOSE. You are solely responsible for determining the\n"
+                    + "      appropriateness of using or redistributing the Work and assume any\n"
+                    + "      risks associated with Your exercise of permissions under this License.\n"
+                    + "\n"
+                    + "   8. Limitation of Liability. In no event and under no legal theory,\n"
+                    + "      whether in tort (including negligence), contract, or otherwise,\n"
+                    + "      unless required by applicable law (such as deliberate and grossly\n"
+                    + "      negligent acts) or agreed to in writing, shall any Contributor be\n"
+                    + "      liable to You for damages, including any direct, indirect, special,\n"
+                    + "      incidental, or consequential damages of any character arising as a\n"
+                    + "      result of this License or out of the use or inability to use the\n"
+                    + "      Work (including but not limited to damages for loss of goodwill,\n"
+                    + "      work stoppage, computer failure or malfunction, or any and all\n"
+                    + "      other commercial damages or losses), even if such Contributor\n"
+                    + "      has been advised of the possibility of such damages.\n"
+                    + "\n"
+                    + "   9. Accepting Warranty or Additional Liability. While redistributing\n"
+                    + "      the Work or Derivative Works thereof, You may choose to offer,\n"
+                    + "      and charge a fee for, acceptance of support, warranty, indemnity,\n"
+                    + "      or other liability obligations and/or rights consistent with this\n"
+                    + "      License. However, in accepting such obligations, You may act only\n"
+                    + "      on Your own behalf and on Your sole responsibility, not on behalf\n"
+                    + "      of any other Contributor, and only if You agree to indemnify,\n"
+                    + "      defend, and hold each Contributor harmless for any liability\n"
+                    + "      incurred by, or claims asserted against, such Contributor by reason\n"
+                    + "      of your accepting any such warranty or additional liability.\n"
+                    + "\n"
+                    + "   END OF TERMS AND CONDITIONS\n"
+                    + "\n"
+                    + "   APPENDIX: How to apply the Apache License to your work.\n"
+                    + "\n"
+                    + "      To apply the Apache License to your work, attach the following\n"
+                    + "      boilerplate notice, with the fields enclosed by brackets \"[]\"\n"
+                    + "      replaced with your own identifying information. (Don't include\n"
+                    + "      the brackets!)  The text should be enclosed in the appropriate\n"
+                    + "      comment syntax for the file format. We also recommend that a\n"
+                    + "      file or class name and description of purpose be included on the\n"
+                    + "      same \"printed page\" as the copyright notice for easier\n"
+                    + "      identification within third-party archives.\n"
+                    + "\n"
+                    + "   Copyright [yyyy] [name of copyright owner]\n"
+                    + "\n"
+                    + "   Licensed under the Apache License, Version 2.0 (the \"License\");\n"
+                    + "   you may not use this file except in compliance with the License.\n"
+                    + "   You may obtain a copy of the License at\n"
+                    + "\n"
+                    + "       http://www.apache.org/licenses/LICENSE-2.0\n"
+                    + "\n"
+                    + "   Unless required by applicable law or agreed to in writing, software\n"
+                    + "   distributed under the License is distributed on an \"AS IS\" BASIS,\n"
+                    + "   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
+                    + "   See the License for the specific language governing permissions and\n"
+                    + "   limitations under the License.\n";
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileCheckerTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileCheckerTest.java
new file mode 100644
index 0000000..8c86773
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/licensecheck/NoticeFileCheckerTest.java
@@ -0,0 +1,203 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.licensecheck;
+
+import org.apache.paimon.tools.ci.utils.notice.NoticeContents;
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.util.*;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class NoticeFileCheckerTest {
+    @Test
+    void testRunHappyPath() throws IOException {
+        final String moduleName = "test";
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(moduleName, Collections.singleton(bundledDependency));
+        final Set<String> deployedModules = Collections.singleton(moduleName);
+        final Optional<NoticeContents> noticeContents =
+                Optional.of(
+                        new NoticeContents(
+                                moduleName, Collections.singletonList(bundledDependency)));
+
+        assertThat(
+                        NoticeFileChecker.run(
+                                bundleDependencies,
+                                deployedModules,
+                                Collections.singletonMap(moduleName, noticeContents)))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testRunRejectsMissingNotice() throws IOException {
+        final String moduleName = "test";
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(moduleName, Collections.singleton(bundledDependency));
+        final Set<String> deployedModules = Collections.singleton(moduleName);
+        final Optional<NoticeContents> missingNotice = Optional.empty();
+
+        assertThat(
+                        NoticeFileChecker.run(
+                                bundleDependencies,
+                                deployedModules,
+                                Collections.singletonMap(moduleName, missingNotice)))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRunRejectsIncorrectNotice() throws IOException {
+        final String moduleName = "test";
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(moduleName, Collections.singleton(bundledDependency));
+        final Set<String> deployedModules = Collections.singleton(moduleName);
+        final Optional<NoticeContents> emptyNotice =
+                Optional.of(new NoticeContents(moduleName, Collections.emptyList()));
+
+        assertThat(
+                        NoticeFileChecker.run(
+                                bundleDependencies,
+                                deployedModules,
+                                Collections.singletonMap(moduleName, emptyNotice)))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testRunSkipsNonDeployedModules() throws IOException {
+        final String moduleName = "test";
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(moduleName, Collections.singleton(bundledDependency));
+        final Set<String> deployedModules = Collections.emptySet();
+        // this would usually be a problem, but since the module is not deployed it's OK!
+        final Optional<NoticeContents> emptyNotice =
+                Optional.of(new NoticeContents(moduleName, Collections.emptyList()));
+
+        assertThat(
+                        NoticeFileChecker.run(
+                                bundleDependencies,
+                                deployedModules,
+                                Collections.singletonMap(moduleName, emptyNotice)))
+                .isEqualTo(0);
+    }
+
+    @Test
+    void testRunIncludesBundledNonDeployedModules() throws IOException {
+        final Map<String, Set<Dependency>> bundledDependencies = new HashMap<>();
+        final Map<String, Optional<NoticeContents>> notices = new HashMap<>();
+
+        // a module that is not deployed but bundles another dependency with an empty NOTICE
+        final String nonDeployedModuleName = "nonDeployed";
+        final Dependency nonDeployedDependency =
+                Dependency.create("a", nonDeployedModuleName, "c", null);
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        bundledDependencies.put(nonDeployedModuleName, Collections.singleton(bundledDependency));
+        // this would usually not be a problem, but since the module is not bundled it's not OK!
+        final Optional<NoticeContents> emptyNotice =
+                Optional.of(new NoticeContents(nonDeployedModuleName, Collections.emptyList()));
+        notices.put(nonDeployedModuleName, emptyNotice);
+
+        // a module that is deploys and bundles the above
+        final String bundlingModule = "bundling";
+        bundledDependencies.put(bundlingModule, Collections.singleton(nonDeployedDependency));
+        final Optional<NoticeContents> correctNotice =
+                Optional.of(
+                        new NoticeContents(
+                                bundlingModule, Collections.singletonList(nonDeployedDependency)));
+        notices.put(bundlingModule, correctNotice);
+
+        final Set<String> deployedModules = Collections.singleton(bundlingModule);
+
+        assertThat(NoticeFileChecker.run(bundledDependencies, deployedModules, notices))
+                .isEqualTo(1);
+    }
+
+    @Test
+    void testCheckNoticeFileHappyPath() {
+        final String moduleName = "test";
+        final Dependency bundledDependency = Dependency.create("a", "b", "c", null);
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(moduleName, Collections.singleton(bundledDependency));
+
+        assertThat(
+                        NoticeFileChecker.checkNoticeFile(
+                                bundleDependencies,
+                                moduleName,
+                                new NoticeContents(
+                                        moduleName, Collections.singletonList(bundledDependency))))
+                .isEmpty();
+    }
+
+    @Test
+    void testCheckNoticeFileRejectsEmptyFile() {
+        assertThat(NoticeFileChecker.checkNoticeFile(Collections.emptyMap(), "test", null))
+                .containsOnlyKeys(NoticeFileChecker.Severity.CRITICAL);
+    }
+
+    @Test
+    void testCheckNoticeFileToleratesModuleNameMismatch() {
+        final String moduleName = "test";
+
+        assertThat(
+                        NoticeFileChecker.checkNoticeFile(
+                                Collections.emptyMap(),
+                                moduleName,
+                                new NoticeContents(moduleName + "2", Collections.emptyList())))
+                .containsOnlyKeys(NoticeFileChecker.Severity.TOLERATED);
+    }
+
+    @Test
+    void testCheckNoticeFileRejectsDuplicateLine() {
+        final String moduleName = "test";
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(
+                moduleName, Collections.singleton(Dependency.create("a", "b", "c", null)));
+
+        assertThat(
+                        NoticeFileChecker.checkNoticeFile(
+                                bundleDependencies,
+                                moduleName,
+                                new NoticeContents(
+                                        moduleName,
+                                        Arrays.asList(
+                                                Dependency.create("a", "b", "c", null),
+                                                Dependency.create("a", "b", "c", null)))))
+                .containsOnlyKeys(NoticeFileChecker.Severity.CRITICAL);
+    }
+
+    @Test
+    void testCheckNoticeFileRejectsMissingDependency() {
+        final String moduleName = "test";
+        final Map<String, Set<Dependency>> bundleDependencies = new HashMap<>();
+        bundleDependencies.put(
+                moduleName, Collections.singleton(Dependency.create("a", "b", "c", null)));
+
+        assertThat(
+                        NoticeFileChecker.checkNoticeFile(
+                                bundleDependencies,
+                                moduleName,
+                                new NoticeContents(moduleName, Collections.emptyList())))
+                .containsOnlyKeys(NoticeFileChecker.Severity.CRITICAL);
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserCopyTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserCopyTest.java
new file mode 100644
index 0000000..97671d5
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserCopyTest.java
@@ -0,0 +1,121 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.dependency;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/** Tests the parsing of {@code dependency:copy}. */
+class DependencyParserCopyTest {
+
+    private static Stream<String> getTestDependencyCopy() {
+        return Stream.of(
+                "[INFO] --- maven-dependency-plugin:3.2.0:copy (copy) @ m1 ---",
+                "[INFO] Configured Artifact: external:dependency1:2.1:jar",
+                "[INFO] Configured Artifact: external:dependency4:classifier:2.4:jar",
+                "[INFO] Copying dependency1-2.1.jar to /some/path/dependency1-2.1.jar",
+                "[INFO] Copying dependency4-2.4.jar to /some/path/dependency4-2.4.jar",
+                "[INFO]",
+                "[INFO] --- maven-dependency-plugin:3.2.0:copy (copy) @ m2 ---",
+                "[INFO] Configured Artifact: internal:m1:1.1:jar",
+                "[INFO] Copying internal-1.1.jar to /some/path/m1-1.1.jar");
+    }
+
+    @Test
+    void testCopyParsing() {
+        final Map<String, Set<Dependency>> dependenciesByModule =
+                DependencyParser.parseDependencyCopyOutput(getTestDependencyCopy());
+
+        assertThat(dependenciesByModule).containsOnlyKeys("m1", "m2");
+        assertThat(dependenciesByModule.get("m1"))
+                .containsExactlyInAnyOrder(
+                        Dependency.create("external", "dependency1", "2.1", null),
+                        Dependency.create("external", "dependency4", "2.4", "classifier"));
+        assertThat(dependenciesByModule.get("m2"))
+                .containsExactlyInAnyOrder(Dependency.create("internal", "m1", "1.1", null));
+    }
+
+    @Test
+    void testCopyLineParsingGroupId() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:jar"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getGroupId()).isEqualTo("external"));
+    }
+
+    @Test
+    void testCopyLineParsingArtifactId() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:jar"))
+                .hasValueSatisfying(
+                        dependency ->
+                                assertThat(dependency.getArtifactId()).isEqualTo("dependency1"));
+    }
+
+    @Test
+    void testCopyLineParsingVersion() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:jar"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getVersion()).isEqualTo("1.0"));
+    }
+
+    @Test
+    void testCopyLineParsingScope() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:jar"))
+                .hasValueSatisfying(dependency -> assertThat(dependency.getScope()).isEmpty());
+    }
+
+    @Test
+    void testCopyLineParsingOptional() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:jar"))
+                .hasValueSatisfying(dependency -> assertThat(dependency.isOptional()).isEmpty());
+    }
+
+    @Test
+    void testCopyLineParsingWithNonJarType() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:1.0:pom"))
+                .hasValue(Dependency.create("external", "dependency1", "1.0", null));
+    }
+
+    @Test
+    void testCopyLineParsingClassifier() {
+        assertThat(
+                        DependencyParser.parseCopyDependency(
+                                "[INFO] Configured Artifact: external:dependency1:some_classifier:1.0:jar"))
+                .hasValueSatisfying(
+                        dependency ->
+                                assertThat(dependency.getClassifier()).hasValue("some_classifier"));
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserTreeTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserTreeTest.java
new file mode 100644
index 0000000..3aa4cb5
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/dependency/DependencyParserTreeTest.java
@@ -0,0 +1,148 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.dependency;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+import org.apache.paimon.tools.ci.utils.shared.DependencyTree;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/** Tests the parsing of {@code dependency:tree}. */
+class DependencyParserTreeTest {
+
+    private static Stream<String> getTestDependencyTree() {
+        return Stream.of(
+                "[INFO] --- maven-dependency-plugin:3.2.0:tree (default-cli) @ m1 ---",
+                "[INFO] internal:m1:jar:1.1",
+                "[INFO] +- external:dependency1:jar:2.1:compile",
+                "[INFO] |  +- external:dependency2:jar:2.2:compile (optional)",
+                "[INFO] |  |  \\- external:dependency3:jar:2.3:provided",
+                "[INFO] |  +- external:dependency4:jar:classifier:2.4:compile",
+                "[INFO]",
+                "[INFO] --- maven-dependency-plugin:3.2.0:tree (default-cli) @ m2 ---",
+                "[INFO] internal:m2:jar:1.2",
+                "[INFO] +- internal:m1:jar:1.1:compile",
+                "[INFO] |  +- external:dependency4:jar:2.4:compile");
+    }
+
+    @Test
+    void testTreeParsing() {
+        final Map<String, DependencyTree> dependenciesByModule =
+                DependencyParser.parseDependencyTreeOutput(getTestDependencyTree());
+
+        assertThat(dependenciesByModule).containsOnlyKeys("m1", "m2");
+        assertThat(dependenciesByModule.get("m1").flatten())
+                .containsExactlyInAnyOrder(
+                        Dependency.create("external", "dependency1", "2.1", null, "compile", false),
+                        Dependency.create("external", "dependency2", "2.2", null, "compile", true),
+                        Dependency.create(
+                                "external", "dependency3", "2.3", null, "provided", false),
+                        Dependency.create(
+                                "external", "dependency4", "2.4", "classifier", "compile", false));
+        assertThat(dependenciesByModule.get("m2").flatten())
+                .containsExactlyInAnyOrder(
+                        Dependency.create("internal", "m1", "1.1", null, "compile", false),
+                        Dependency.create(
+                                "external", "dependency4", "2.4", null, "compile", false));
+    }
+
+    @Test
+    void testTreeLineParsingGroupId() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:compile"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getGroupId()).isEqualTo("external"));
+    }
+
+    @Test
+    void testTreeLineParsingArtifactId() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:compile"))
+                .hasValueSatisfying(
+                        dependency ->
+                                assertThat(dependency.getArtifactId()).isEqualTo("dependency1"));
+    }
+
+    @Test
+    void testTreeLineParsingVersion() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:compile"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getVersion()).isEqualTo("1.0"));
+    }
+
+    @Test
+    void testTreeLineParsingScope() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:provided"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getScope()).hasValue("provided"));
+    }
+
+    @Test
+    void testTreeLineParsingWithNonJarType() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:pom:1.0:compile"))
+                .hasValue(
+                        Dependency.create(
+                                "external", "dependency1", "1.0", null, "compile", false));
+    }
+
+    @Test
+    void testTreeLineParsingWithClassifier() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:some_classifier:1.0:compile"))
+                .hasValue(
+                        Dependency.create(
+                                "external",
+                                "dependency1",
+                                "1.0",
+                                "some_classifier",
+                                "compile",
+                                false));
+    }
+
+    @Test
+    void testTreeLineParsingWithoutOptional() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:compile"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.isOptional()).hasValue(false));
+    }
+
+    @Test
+    void testTreeLineParsingWithOptional() {
+        assertThat(
+                        DependencyParser.parseTreeDependency(
+                                "[INFO] +- external:dependency1:jar:1.0:compile (optional)"))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.isOptional()).hasValue(true));
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/deploy/DeployParserTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/deploy/DeployParserTest.java
new file mode 100644
index 0000000..64c8d3b
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/deploy/DeployParserTest.java
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.deploy;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class DeployParserTest {
+    @Test
+    void testParseDeployOutputDetectsDeployment() {
+        assertThat(
+                        DeployParser.parseDeployOutput(
+                                Stream.of(
+                                        "[INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ paimon-parent ---",
+                                        "[INFO] ")))
+                .containsExactly("paimon-parent");
+    }
+
+    @Test
+    void testParseDeployOutputDetectsDeploymentWithAltRepository() {
+        assertThat(
+                        DeployParser.parseDeployOutput(
+                                Stream.of(
+                                        "[INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ paimon-parent ---",
+                                        "[INFO] Using alternate deployment repository.../tmp/paimon-validation-deployment")))
+                .containsExactly("paimon-parent");
+    }
+
+    @Test
+    void testParseDeployOutputDetectsSkippedDeployments() {
+        assertThat(
+                        DeployParser.parseDeployOutput(
+                                Stream.of(
+                                        "[INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ paimon-parent ---",
+                                        "[INFO] Skipping artifact deployment")))
+                .isEmpty();
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/notice/NoticeParserTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/notice/NoticeParserTest.java
new file mode 100644
index 0000000..fefe861
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/notice/NoticeParserTest.java
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.notice;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class NoticeParserTest {
+    @Test
+    void testParseNoticeFileCommonPath() {
+        final String module = "some-module";
+        final Dependency dependency1 =
+                Dependency.create("groupId1", "artifactId1", "version1", null);
+        final Dependency dependency2 =
+                Dependency.create("groupId2", "artifactId2", "version2", "classifier2");
+        final Dependency dependency3 =
+                Dependency.create("org.codehaus.woodstox", "stax2-api", "4.2.1", null);
+        final List<String> noticeContents =
+                Arrays.asList(
+                        module,
+                        "",
+                        "Some text about the applicable license",
+                        "- groupId1:artifactId1:version1",
+                        "- groupId2:artifactId2:classifier2:version2",
+                        "- org.codehaus.woodstox:stax2-api:4.2.1 (https://github.com/FasterXML/stax2-api/tree/stax2-api-4.2.1)",
+                        "",
+                        "some epilogue");
+
+        assertThat(NoticeParser.parseNoticeFile(noticeContents))
+                .hasValueSatisfying(
+                        contents -> {
+                            assertThat(contents.getNoticeModuleName()).isEqualTo(module);
+                            assertThat(contents.getDeclaredDependencies())
+                                    .containsExactlyInAnyOrder(
+                                            dependency1, dependency2, dependency3);
+                        });
+    }
+
+    @Test
+    void testParseNoticeFileBundlesPath() {
+        final String module = "some-module";
+        final Dependency dependency =
+                Dependency.create("groupId", "artifactId", "version", "classifier");
+        final List<String> noticeContents =
+                Arrays.asList(
+                        module, "", "Something bundles \"groupId:artifactId:classifier:version\"");
+
+        assertThat(NoticeParser.parseNoticeFile(noticeContents))
+                .hasValueSatisfying(
+                        contents -> {
+                            assertThat(contents.getNoticeModuleName()).isEqualTo(module);
+                            assertThat(contents.getDeclaredDependencies())
+                                    .containsExactlyInAnyOrder(dependency);
+                        });
+    }
+
+    @Test
+    void testParseNoticeFileMalformedDependencyIgnored() {
+        final String module = "some-module";
+        final Dependency dependency = Dependency.create("groupId", "artifactId", "version", null);
+        final List<String> noticeContents = Arrays.asList(module, "- " + dependency, "- a:b");
+
+        assertThat(NoticeParser.parseNoticeFile(noticeContents))
+                .hasValueSatisfying(
+                        contents -> {
+                            assertThat(contents.getNoticeModuleName()).isEqualTo(module);
+                            assertThat(contents.getDeclaredDependencies())
+                                    .containsExactlyInAnyOrder(dependency);
+                        });
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shade/ShadeParserTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shade/ShadeParserTest.java
new file mode 100644
index 0000000..a403c0e
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shade/ShadeParserTest.java
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shade;
+
+import org.apache.paimon.tools.ci.utils.shared.Dependency;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class ShadeParserTest {
+
+    private static Stream<String> getTestDependencyCopy() {
+        return Stream.of(
+                "[INFO] --- maven-shade-plugin:3.2.0:shade (shade-paimon) @ m1 ---",
+                "[INFO] Including external:dependency1:jar:2.1 in the shaded jar.",
+                "[INFO] Excluding external:dependency3:jar:2.3 from the shaded jar.",
+                "[INFO] Including external:dependency4:jar:classifier:2.4 in the shaded jar.",
+                "[INFO] Replacing original artifact with shaded artifact.",
+                "[INFO] Replacing /some/path/m1.jar with /some/path/m1-shaded.jar",
+                "[INFO]",
+                "[INFO] --- maven-shade-plugin:3.2.0:shade (shade-paimon) @ m2 ---",
+                "[INFO] Including internal:m1:jar:1.1 in the shaded jar.",
+                "[INFO] Replacing /some/path/m2.jar with /some/path/m2-shaded.jar");
+    }
+
+    @Test
+    void testParsing() {
+        final Map<String, Set<Dependency>> dependenciesByModule =
+                ShadeParser.parseShadeOutput(getTestDependencyCopy());
+
+        assertThat(dependenciesByModule).containsOnlyKeys("m1", "m2");
+        assertThat(dependenciesByModule.get("m1"))
+                .containsExactlyInAnyOrder(
+                        Dependency.create("external", "dependency1", "2.1", null),
+                        Dependency.create("external", "dependency4", "2.4", "classifier"));
+        assertThat(dependenciesByModule.get("m2"))
+                .containsExactlyInAnyOrder(Dependency.create("internal", "m1", "1.1", null));
+    }
+
+    @Test
+    void testLineParsingGroupId() {
+        assertThat(
+                        ShadeParser.parseDependency(
+                                "Including external:dependency1:jar:1.0 in the shaded jar."))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getGroupId()).isEqualTo("external"));
+    }
+
+    @Test
+    void testLineParsingArtifactId() {
+        assertThat(
+                        ShadeParser.parseDependency(
+                                "Including external:dependency1:jar:1.0 in the shaded jar."))
+                .hasValueSatisfying(
+                        dependency ->
+                                assertThat(dependency.getArtifactId()).isEqualTo("dependency1"));
+    }
+
+    @Test
+    void testLineParsingVersion() {
+        assertThat(
+                        ShadeParser.parseDependency(
+                                "Including external:dependency1:jar:1.0 in the shaded jar."))
+                .hasValueSatisfying(
+                        dependency -> assertThat(dependency.getVersion()).isEqualTo("1.0"));
+    }
+
+    @Test
+    void testLineParsingWithNonJarType() {
+        assertThat(
+                        ShadeParser.parseDependency(
+                                "Including external:dependency1:pom:1.0 in the shaded jar."))
+                .isPresent();
+    }
+}
diff --git a/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shared/DependencyTreeTest.java b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shared/DependencyTreeTest.java
new file mode 100644
index 0000000..aa923f6
--- /dev/null
+++ b/tools/ci/paimon-ci-tools/src/test/java/org/apache/paimon/tools/ci/utils/shared/DependencyTreeTest.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.paimon.tools.ci.utils.shared;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class DependencyTreeTest {
+    private static final Dependency DEPENDENCY =
+            Dependency.create("groupId", "artifactId", "version", null);
+
+    @Test
+    void testDependencyKeyIncludesGroupId() {
+        testDependencyKeyInclusion(
+                Dependency.create(
+                        "xxx",
+                        DEPENDENCY.getArtifactId(),
+                        DEPENDENCY.getVersion(),
+                        DEPENDENCY.getClassifier().orElse(null)));
+    }
+
+    @Test
+    void testDependencyKeyIncludesArtifactId() {
+        testDependencyKeyInclusion(
+                Dependency.create(
+                        DEPENDENCY.getGroupId(),
+                        "xxx",
+                        DEPENDENCY.getVersion(),
+                        DEPENDENCY.getClassifier().orElse(null)));
+    }
+
+    @Test
+    void testDependencyKeyIncludesVersion() {
+        testDependencyKeyInclusion(
+                Dependency.create(
+                        DEPENDENCY.getGroupId(),
+                        DEPENDENCY.getArtifactId(),
+                        "xxx",
+                        DEPENDENCY.getClassifier().orElse(null)));
+    }
+
+    @Test
+    void testDependencyKeyIncludesClassifier() {
+        testDependencyKeyInclusion(
+                Dependency.create(
+                        DEPENDENCY.getGroupId(),
+                        DEPENDENCY.getArtifactId(),
+                        DEPENDENCY.getVersion(),
+                        "xxx"));
+    }
+
+    private static void testDependencyKeyInclusion(Dependency modifiedDependency) {
+        final DependencyTree dependencyTree = new DependencyTree();
+        dependencyTree.addDirectDependency(DEPENDENCY);
+        dependencyTree.addDirectDependency(modifiedDependency);
+
+        assertThat(dependencyTree.flatten()).containsExactly(DEPENDENCY, modifiedDependency);
+    }
+
+    @Test
+    void testDependencyKeyIgnoresScopeAndOptionalFlag() {
+        final Dependency dependencyWithScopeAndOptionalFlag =
+                Dependency.create(
+                        DEPENDENCY.getGroupId(),
+                        DEPENDENCY.getArtifactId(),
+                        DEPENDENCY.getVersion(),
+                        DEPENDENCY.getClassifier().orElse(null),
+                        "compile",
+                        true);
+
+        final DependencyTree dependencyTree = new DependencyTree();
+        dependencyTree.addDirectDependency(DEPENDENCY);
+        dependencyTree.addDirectDependency(dependencyWithScopeAndOptionalFlag);
+
+        assertThat(dependencyTree.flatten()).containsExactly(DEPENDENCY);
+        assertThat(dependencyTree.getPathTo(dependencyWithScopeAndOptionalFlag))
+                .containsExactly(DEPENDENCY);
+    }
+}