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

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Not A Problem
• Fix Version/s: 2.12.1
• Component/s: API
• Assignee: Unassigned
• Reporter: Saptarshi De
• Created: 15/Dec/21 11:03
• Updated: 18/Jan/22 15:45
• Resolved: 18/Jan/22 15:45

Description

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.

 

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)