[jira] [Commented] (LOG4J2-3235) Exception: Invalid byte tag in constant pool: 19 for module-info.class Java 7

["Ralph Goers (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-3235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17477992#comment-17477992 ] 

Ralph Goers commented on LOG4J2-3235:
-------------------------------------

Gary, please remember we started supporting Java 9+ when we still were targeting Java 7. There is nothing wrong with the Java 9 classes being there.

This is a bug in Tomcat. [https://bz.apache.org/bugzilla/show_bug.cgi?id=60688.]

You need to upgrade Tomcat to 8.0.42

> Exception: Invalid byte tag in constant pool: 19 for module-info.class Java 7
> -----------------------------------------------------------------------------
>
>                 Key: LOG4J2-3235
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3235
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: API
>            Reporter: Saptarshi De
>            Priority: Critical
>             Fix For: 2.12.1
>
>
> Due to the recent vulnerability CVE-2021-44228 and CVE-2021-45046, We are updating to Log4j 2.12.2 on our Java 7 environment.
> Log4j 2.12.2 is supposed to be compatible with Java 7.
> We face the below exception on startup.
> Please suggest a solution for the same.
>  
> {code:java}
> 15-Dec-2021 12:55:32.722 SEVERE [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.processAnnotationsJar Unable to process Jar entry [META-INF/versions/9/module-info.class] from Jar [jar:file:/------/log4j-api-2.12.2.jar!/] for annotations
>  org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19
>  at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:97)
>  at org.apache.tomcat.util.bcel.classfile.ConstantPool.<init>(ConstantPool.java:55)
>  at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:177)
>  at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:85)
>  at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2011)
>  at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1961)
>  at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1936)
>  at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1897)
>  at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1149)
>  at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:771)
>  at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:305)
>  at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
>  at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
>  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5066)
>  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
>  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
>  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
>  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
>  at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1101)
>  at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1786)
>  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>  at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  at java.lang.Thread.run(Thread.java:745)
> {code}
>  



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