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Posted to notifications@logging.apache.org by "Ralph Goers (Jira)" <ji...@apache.org> on 2020/08/02 05:25:00 UTC
[jira] [Commented] (LOG4J2-2834) Log4j getCaller class is not found
in Java 11
[ https://issues.apache.org/jira/browse/LOG4J2-2834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17169456#comment-17169456 ]
Ralph Goers commented on LOG4J2-2834:
-------------------------------------
Did you solve this problem or do you still need help?
> Log4j getCaller class is not found in Java 11
> ---------------------------------------------
>
> Key: LOG4J2-2834
> URL: https://issues.apache.org/jira/browse/LOG4J2-2834
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.13.2
> Environment: *Java*
> Java JDK 11.0.7
> *IDE*
> Eclipse 2020-03 (4.15.0)
> *Windows*
> Windows 1903 18362.778
> Reporter: Jarno Gabriel
> Priority: Major
>
> I can't seem to fix Log4j crashing when calling the `LogManager.getLogger()` method. I found [this|[https://stackoverflow.com/questions/52953483/logmanager-getlogger-is-unable-to-determine-class-name-on-java-11]] thread and I included the `Multi-Release` property in the manifest file but Log4J still crashes.
> What I did was include Log4J in a library I wrote and then packaged that library using the maven shade plugin and then I included my packaged library in my actual application.
> The error I'm getting:
> {code:java}
> Exception in thread "main" java.lang.UnsupportedOperationException: No class provided, and an appropriate one cannot be found.
> at org.apache.logging.log4j.LogManager.callerClass(LogManager.java:576)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:601)
> at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:588){code}
>
> The shade configuration in my pom file for the library:
> {code:java}
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-shade-plugin</artifactId>
> <version>3.2.3</version>
> <executions>
> <execution>
> <phase>package</phase>
> <goals>
> <goal>shade</goal>
> </goals>
> <configuration>
> <filters>
> <filter>
> <artifact>:</artifact>
> <excludes>
> <exclude>META-INF/.SF</exclude>
> <exclude>META-INF/.DSA</exclude>
> <exclude>META-INF/*.RSA</exclude>
> </excludes>
> </filter>
> </filters>
> <transformers>
> <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
> <manifestEntries>
> <Multi-Release>true</Multi-Release>
> </manifestEntries>
> </transformer>
> <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
> </transformers>
> <finalName>uber-${project.artifactId}-${project.version}</finalName>
> </configuration>
> </execution>
> </executions>
> </plugin>{code}
>
> The manifest file in the library .jar file:
> {code:java}
> Manifest-Version: 1.0
> Archiver-Version: Plexus Archiver
> Created-By: Apache Maven 3.6.3
> Build-Jdk: 11.0.7
> Multi-Release: true{code}
>
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