[jira] [Commented] (LOG4J2-2834) Log4j getCaller class is not found in Java 11

["Remko Popma (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-2834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17094363#comment-17094363 ] 

Remko Popma commented on LOG4J2-2834:
-------------------------------------

I suspect that not all files from the Log4j2 jars were included in the shaded jar. 
Can you verify that all files (.class and anything under META-INF) is included?

> 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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