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Posted to commits@maven.apache.org by rf...@apache.org on 2019/08/24 16:25:26 UTC
[maven] 02/12: [MNG-6656] separate module for maven-xml,
maven-model-builder doesn't depend on maven-core
This is an automated email from the ASF dual-hosted git repository.
rfscholte pushed a commit to branch MNG-6656
in repository https://gitbox.apache.org/repos/asf/maven.git
commit 79c4813558486fcedcdd902f8f3188591c747a21
Author: rfscholte <rf...@apache.org>
AuthorDate: Sat Jun 1 19:08:21 2019 +0200
[MNG-6656] separate module for maven-xml, maven-model-builder doesn't depend on maven-core
---
maven-core/pom.xml | 4 +
.../DefaultRepositorySystemSessionFactory.java | 53 ++++------
maven-model-builder/pom.xml | 6 +-
.../maven/model/building/DefaultModelBuilder.java | 15 ++-
maven-xml/pom.xml | 62 ++++++++++++
.../main/java/org/apache/maven/xml/SAXEvent.java | 24 ++---
.../java/org/apache/maven/xml/SAXEventFactory.java | 111 +++++++++++++++++++++
.../java/org/apache/maven/xml/SAXEventUtils.java | 22 ++--
.../apache/maven/xml/filter/BuildPomXMLFilter.java | 11 +-
.../maven/xml/filter/ConsumerPomXMLFilter.java | 23 ++++-
.../apache/maven/xml/filter/FastForwardFilter.java | 0
.../apache/maven/xml/filter/ModulesXMLFilter.java | 0
.../maven/xml/filter/RelativePathXMLFilter.java | 0
.../maven/xml/filter/AbstractXMLFilterTests.java | 0
.../maven/xml/filter/ConsumerPomXMLFilterTest.java | 0
.../maven/xml/filter/ModulesXMLFilterTest.java | 0
.../xml/filter/RelativePathXMLFilterTest.java | 0
pom.xml | 27 +++++
18 files changed, 280 insertions(+), 78 deletions(-)
diff --git a/maven-core/pom.xml b/maven-core/pom.xml
index e467851..79dc86e 100644
--- a/maven-core/pom.xml
+++ b/maven-core/pom.xml
@@ -62,6 +62,10 @@ under the License.
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
+ <artifactId>maven-xml</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
</dependency>
<dependency>
diff --git a/maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java b/maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java
index 792b085..5ee5525 100644
--- a/maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java
+++ b/maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java
@@ -34,7 +34,6 @@ import java.util.Properties;
import javax.inject.Inject;
import javax.inject.Named;
-import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXSource;
@@ -77,7 +76,6 @@ import org.eclipse.aether.util.repository.DefaultProxySelector;
import org.eclipse.aether.util.repository.SimpleResolutionErrorPolicy;
import org.eclipse.sisu.Nullable;
import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
/**
* @since 3.3.0
@@ -283,41 +281,34 @@ public class DefaultRepositorySystemSessionFactory
public InputStream transformData( File file )
throws IOException, TransformException
{
- try
+ final PipedOutputStream pipedOutputStream = new PipedOutputStream();
+ final PipedInputStream pipedInputStream = new PipedInputStream( pipedOutputStream );
+
+ final SAXSource transformSource =
+ new SAXSource( new ConsumerPomXMLFilter( null /* @TODO bass BuildPomXMLFilter */ ),
+ new InputSource( new FileReader( file ) ) );
+
+ final StreamResult result = new StreamResult( pipedOutputStream );
+
+ final Runnable runnable = new Runnable()
{
- final PipedOutputStream pipedOutputStream = new PipedOutputStream();
- final PipedInputStream pipedInputStream = new PipedInputStream( pipedOutputStream );
-
- final SAXSource transformSource =
- new SAXSource( new ConsumerPomXMLFilter(),
- new InputSource( new FileReader( file ) ) );
-
- final StreamResult result = new StreamResult( pipedOutputStream );
-
- final Runnable runnable = new Runnable()
+ @Override
+ public void run()
{
- @Override
- public void run()
+ try ( PipedOutputStream out = pipedOutputStream )
{
- try ( PipedOutputStream out = pipedOutputStream )
- {
- transformerFactory.newTransformer().transform( transformSource, result );
- }
- catch ( TransformerException | IOException e )
- {
- throw new RuntimeException( e );
- }
+ transformerFactory.newTransformer().transform( transformSource, result );
}
- };
+ catch ( TransformerException | IOException e )
+ {
+ throw new RuntimeException( e );
+ }
+ }
+ };
- new Thread( runnable ).start();
+ new Thread( runnable ).start();
- return pipedInputStream;
- }
- catch ( SAXException | ParserConfigurationException e )
- {
- throw new TransformException( e );
- }
+ return pipedInputStream;
}
@Override
diff --git a/maven-model-builder/pom.xml b/maven-model-builder/pom.xml
index 9a85016..0f10fa9 100644
--- a/maven-model-builder/pom.xml
+++ b/maven-model-builder/pom.xml
@@ -59,6 +59,11 @@ under the License.
<artifactId>maven-builder-support</artifactId>
</dependency>
<dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-xml</artifactId>
+ </dependency>
+ <!-- Testing -->
+ <dependency>
<groupId>org.eclipse.sisu</groupId>
<artifactId>org.eclipse.sisu.inject</artifactId>
</dependency>
@@ -67,7 +72,6 @@ under the License.
<artifactId>org.eclipse.sisu.plexus</artifactId>
<scope>test</scope>
</dependency>
- <!-- Testing -->
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
diff --git a/maven-model-builder/src/main/java/org/apache/maven/model/building/DefaultModelBuilder.java b/maven-model-builder/src/main/java/org/apache/maven/model/building/DefaultModelBuilder.java
index f981944..7022781 100644
--- a/maven-model-builder/src/main/java/org/apache/maven/model/building/DefaultModelBuilder.java
+++ b/maven-model-builder/src/main/java/org/apache/maven/model/building/DefaultModelBuilder.java
@@ -549,6 +549,7 @@ public class DefaultModelBuilder
try
{
+ // RFS adjust inputstream
model = modelProcessor.read( modelSource.getInputStream(), options );
}
catch ( ModelParseException e )
@@ -733,12 +734,24 @@ public class DefaultModelBuilder
private void assembleInheritance( List<ModelData> lineage, ModelBuildingRequest request,
ModelProblemCollector problems )
{
- for ( int i = lineage.size() - 2; i >= 0; i-- )
+ for ( int i = lineage.size() - 2; i >= 1; i-- )
{
Model parent = lineage.get( i + 1 ).getModel();
Model child = lineage.get( i ).getModel();
inheritanceAssembler.assembleModelInheritance( child, parent, request, problems );
}
+
+ // re-read model from file
+ if ( Boolean.getBoolean( "maven.experimental.buildconsumer" ) )
+ {
+ throw new UnsupportedOperationException();
+ }
+ else
+ {
+ Model parent = lineage.get( 1 ).getModel();
+ Model child = lineage.get( 0 ).getModel();
+ inheritanceAssembler.assembleModelInheritance( child, parent, request, problems );
+ }
}
private Map<String, Activation> getProfileActivations( Model model, boolean clone )
diff --git a/maven-xml/pom.xml b/maven-xml/pom.xml
new file mode 100644
index 0000000..aeef99e
--- /dev/null
+++ b/maven-xml/pom.xml
@@ -0,0 +1,62 @@
+<?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/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven</artifactId>
+ <version>3.6.2-SNAPSHOT</version>
+ </parent>
+ <artifactId>maven-xml</artifactId>
+ <name>Maven XML</name>
+
+ <properties>
+ <maven.compiler.source>1.8</maven.compiler.source>
+ <maven.compiler.target>1.8</maven.compiler.target>
+ </properties>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>animal-sniffer-maven-plugin</artifactId>
+ <configuration>
+ <signature>
+ <groupId>org.codehaus.mojo.signature</groupId>
+ <artifactId>java18</artifactId>
+ <version>1.0</version>
+ </signature>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.xmlunit</groupId>
+ <artifactId>xmlunit-assertj</artifactId>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+</project>
\ No newline at end of file
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/SAXEvent.java
similarity index 67%
copy from maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
copy to maven-xml/src/main/java/org/apache/maven/xml/SAXEvent.java
index 60f0c49..07da280 100644
--- a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
+++ b/maven-xml/src/main/java/org/apache/maven/xml/SAXEvent.java
@@ -1,4 +1,4 @@
-package org.apache.maven.xml.filter;
+package org.apache.maven.xml;
/*
* Licensed to the Apache Software Foundation (ASF) under one
@@ -19,26 +19,16 @@ package org.apache.maven.xml.filter;
* under the License.
*/
-import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.XMLFilterImpl;
+import org.xml.sax.SAXException;
/**
- * Filter to adjust pom on filesystem before being processed for effective pom.
+ * Command pattern to gather events which can be executed later on.
*
* @author Robert Scholte
- * @since 3.7.0
+ * @since
*/
-public class BuildPomXMLFilter extends XMLFilterImpl
+@FunctionalInterface
+public interface SAXEvent
{
- public BuildPomXMLFilter()
- {
- super();
- }
-
- public BuildPomXMLFilter( XMLReader parent )
- {
- super( parent );
- }
-
-
+ void execute() throws SAXException;
}
diff --git a/maven-xml/src/main/java/org/apache/maven/xml/SAXEventFactory.java b/maven-xml/src/main/java/org/apache/maven/xml/SAXEventFactory.java
new file mode 100644
index 0000000..42739e1
--- /dev/null
+++ b/maven-xml/src/main/java/org/apache/maven/xml/SAXEventFactory.java
@@ -0,0 +1,111 @@
+package org.apache.maven.xml;
+
+/*
+ * 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.
+ */
+
+import org.xml.sax.Attributes;
+import org.xml.sax.ContentHandler;
+import org.xml.sax.Locator;
+
+/**
+ * Factory for SAXEvents
+ *
+ * @author Robert Scholte
+ * @since 4.0.0
+ */
+public final class SAXEventFactory
+{
+ private final ContentHandler contentHandler;
+
+ protected SAXEventFactory( ContentHandler contentHandler )
+ {
+ this.contentHandler = contentHandler;
+ }
+
+ public SAXEvent characters( final char[] ch, final int start, final int length )
+ {
+ final char[] txt;
+ if ( start > 0 )
+ {
+ txt = new char[length];
+ System.arraycopy( ch, start, txt, 0, length );
+ }
+ else
+ {
+ txt = ch;
+ }
+
+ return () -> contentHandler.characters( txt, 0, length );
+ }
+
+ public SAXEvent endDocument()
+ {
+ return () -> contentHandler.endDocument();
+ }
+
+ public SAXEvent endElement( final String uri, final String localName, final String qName )
+ {
+ return () -> contentHandler.endElement( uri, localName, qName );
+ }
+
+ public SAXEvent endPrefixMapping( final String prefix )
+ {
+ return () -> contentHandler.endPrefixMapping( prefix );
+ }
+
+ public SAXEvent ignorableWhitespace( final char[] ch, final int start, final int length )
+ {
+ return () -> contentHandler.ignorableWhitespace( ch, start, length );
+ }
+
+ public SAXEvent processingInstruction( final String target, final String data )
+ {
+ return () -> contentHandler.processingInstruction( target, data );
+ }
+
+ public SAXEvent setDocumentLocator( final Locator locator )
+ {
+ return () -> contentHandler.setDocumentLocator( locator );
+ }
+
+ public SAXEvent skippedEntity( final String name )
+ {
+ return () -> contentHandler.skippedEntity( name );
+ }
+
+ public SAXEvent startDocument()
+ {
+ return () -> contentHandler.startDocument();
+ }
+
+ public SAXEvent startElement( final String uri, final String localName, final String qName, final Attributes atts )
+ {
+ return () -> contentHandler.startElement( uri, localName, qName, atts );
+ }
+
+ public SAXEvent startPrefixMapping( final String prefix, final String uri )
+ {
+ return () -> contentHandler.startPrefixMapping( prefix, uri );
+ }
+
+ public static SAXEventFactory newInstance( ContentHandler handler )
+ {
+ return new SAXEventFactory( handler );
+ }
+}
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/SAXEventUtils.java
similarity index 69%
copy from maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
copy to maven-xml/src/main/java/org/apache/maven/xml/SAXEventUtils.java
index 60f0c49..06f4f26 100644
--- a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
+++ b/maven-xml/src/main/java/org/apache/maven/xml/SAXEventUtils.java
@@ -1,4 +1,4 @@
-package org.apache.maven.xml.filter;
+package org.apache.maven.xml;
/*
* Licensed to the Apache Software Foundation (ASF) under one
@@ -19,26 +19,20 @@ package org.apache.maven.xml.filter;
* under the License.
*/
-import org.xml.sax.XMLReader;
-import org.xml.sax.helpers.XMLFilterImpl;
-
/**
- * Filter to adjust pom on filesystem before being processed for effective pom.
+ * Utility class for SAXEvents
*
* @author Robert Scholte
- * @since 3.7.0
+ * @since 4.0.0
*/
-public class BuildPomXMLFilter extends XMLFilterImpl
+public final class SAXEventUtils
{
- public BuildPomXMLFilter()
+ private SAXEventUtils()
{
- super();
}
-
- public BuildPomXMLFilter( XMLReader parent )
+
+ public static String renameQName( String oldQName, String newLocalName )
{
- super( parent );
+ return oldQName.replaceFirst( "[^:]+$", newLocalName );
}
-
-
}
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
similarity index 85%
rename from maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
rename to maven-xml/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
index 60f0c49..58d219b 100644
--- a/maven-core/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
+++ b/maven-xml/src/main/java/org/apache/maven/xml/filter/BuildPomXMLFilter.java
@@ -19,7 +19,6 @@ package org.apache.maven.xml.filter;
* under the License.
*/
-import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLFilterImpl;
/**
@@ -30,15 +29,7 @@ import org.xml.sax.helpers.XMLFilterImpl;
*/
public class BuildPomXMLFilter extends XMLFilterImpl
{
- public BuildPomXMLFilter()
- {
- super();
- }
-
- public BuildPomXMLFilter( XMLReader parent )
- {
- super( parent );
- }
+
}
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java
similarity index 79%
rename from maven-core/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java
rename to maven-xml/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java
index 8709b9c..a367419 100644
--- a/maven-core/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java
+++ b/maven-xml/src/main/java/org/apache/maven/xml/filter/ConsumerPomXMLFilter.java
@@ -31,6 +31,7 @@ import org.xml.sax.helpers.XMLFilterImpl;
/**
* XML Filter to transform pom.xml to consumer pom.
* This often means stripping of build-specific information.
+ * When extra information is required during filtering it is probably a member of the BuildPomXMLFilter
*
* This filter is used at 2 locations:
* - {@link org.apache.maven.internal.aether.DefaultRepositorySystemSessionFactory} when publishing pom files.
@@ -43,15 +44,29 @@ public class ConsumerPomXMLFilter extends XMLFilterImpl
{
private final XMLFilter rootFilter;
- public ConsumerPomXMLFilter() throws SAXException, ParserConfigurationException
+ // only for testing purpose
+ ConsumerPomXMLFilter() throws SAXException, ParserConfigurationException
{
this( SAXParserFactory.newInstance().newSAXParser().getXMLReader() );
}
-
- public ConsumerPomXMLFilter( XMLReader parent )
+
+ // only for testing purpose
+ ConsumerPomXMLFilter( XMLReader parent )
{
- rootFilter = new BuildPomXMLFilter( parent );
+ this.rootFilter = new XMLFilterImpl( parent );
+ applyFilters();
+ }
+
+ public ConsumerPomXMLFilter( BuildPomXMLFilter buildPomXMLFilter )
+ {
+ this.rootFilter = buildPomXMLFilter;
+
+ applyFilters();
+ }
+
+ private void applyFilters()
+ {
// Ensure that xs:any elements aren't touched by next filters
XMLFilter filter = new FastForwardFilter( rootFilter );
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/FastForwardFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/filter/FastForwardFilter.java
similarity index 100%
rename from maven-core/src/main/java/org/apache/maven/xml/filter/FastForwardFilter.java
rename to maven-xml/src/main/java/org/apache/maven/xml/filter/FastForwardFilter.java
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/ModulesXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/filter/ModulesXMLFilter.java
similarity index 100%
rename from maven-core/src/main/java/org/apache/maven/xml/filter/ModulesXMLFilter.java
rename to maven-xml/src/main/java/org/apache/maven/xml/filter/ModulesXMLFilter.java
diff --git a/maven-core/src/main/java/org/apache/maven/xml/filter/RelativePathXMLFilter.java b/maven-xml/src/main/java/org/apache/maven/xml/filter/RelativePathXMLFilter.java
similarity index 100%
rename from maven-core/src/main/java/org/apache/maven/xml/filter/RelativePathXMLFilter.java
rename to maven-xml/src/main/java/org/apache/maven/xml/filter/RelativePathXMLFilter.java
diff --git a/maven-core/src/test/java/org/apache/maven/xml/filter/AbstractXMLFilterTests.java b/maven-xml/src/test/java/org/apache/maven/xml/filter/AbstractXMLFilterTests.java
similarity index 100%
rename from maven-core/src/test/java/org/apache/maven/xml/filter/AbstractXMLFilterTests.java
rename to maven-xml/src/test/java/org/apache/maven/xml/filter/AbstractXMLFilterTests.java
diff --git a/maven-core/src/test/java/org/apache/maven/xml/filter/ConsumerPomXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/filter/ConsumerPomXMLFilterTest.java
similarity index 100%
rename from maven-core/src/test/java/org/apache/maven/xml/filter/ConsumerPomXMLFilterTest.java
rename to maven-xml/src/test/java/org/apache/maven/xml/filter/ConsumerPomXMLFilterTest.java
diff --git a/maven-core/src/test/java/org/apache/maven/xml/filter/ModulesXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/filter/ModulesXMLFilterTest.java
similarity index 100%
rename from maven-core/src/test/java/org/apache/maven/xml/filter/ModulesXMLFilterTest.java
rename to maven-xml/src/test/java/org/apache/maven/xml/filter/ModulesXMLFilterTest.java
diff --git a/maven-core/src/test/java/org/apache/maven/xml/filter/RelativePathXMLFilterTest.java b/maven-xml/src/test/java/org/apache/maven/xml/filter/RelativePathXMLFilterTest.java
similarity index 100%
rename from maven-core/src/test/java/org/apache/maven/xml/filter/RelativePathXMLFilterTest.java
rename to maven-xml/src/test/java/org/apache/maven/xml/filter/RelativePathXMLFilterTest.java
diff --git a/pom.xml b/pom.xml
index 9677856..da0b9de 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,6 +92,7 @@ under the License.
<module>maven-embedder</module>
<module>maven-compat</module>
<module>apache-maven</module>
+ <module>maven-xml</module>
</modules>
<scm>
@@ -229,6 +230,11 @@ under the License.
<artifactId>maven-slf4j-provider</artifactId>
<version>${project.version}</version>
</dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-xml</artifactId>
+ <version>${project.version}</version>
+ </dependency>
<!--bootstrap-end-comment-->
<!-- Plexus -->
<dependency>
@@ -443,6 +449,27 @@ under the License.
<pluginManagement>
<plugins>
<plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-enforcer-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>enforce-bytecode-version</id>
+ <goals>
+ <goal>enforce</goal>
+ </goals>
+ <configuration>
+ <rules>
+ <enforceBytecodeVersion>
+ <excludes>
+ <exclude>org.apache.maven:maven-xml</exclude> <!-- Java 8 compatible -->
+ </excludes>
+ </enforceBytecodeVersion>
+ </rules>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
<groupId>org.codehaus.plexus</groupId>
<artifactId>plexus-component-metadata</artifactId>
<version>${plexusVersion}</version>