Org. apache. tomcat. util. bcel. classfile. ClassFormatException: It is not a Java. class file, javaclassnotfound

Org. apache. tomcat. util. bcel. classfile. ClassFormatException: It is not a Java. class file, javaclassnotfound

The following error is returned when Tomcat is started:

24-May-2015 14:47:07.441 SEVERE [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.processAnnotationsJar Unable to process Jar entry [com/auth/spring/listener/SpringLoaderListener.class] from Jar [jar:file:/opt/apache-tomcat-8.0.22/webapps/ROOT/WEB-INF/lib/xinghe-core-2.0.jar!/] for annotations org.apache.tomcat.util.bcel.classfile.ClassFormatException: It is not a Java .class file    at org.apache.tomcat.util.bcel.classfile.ClassParser.readID(ClassParser.java:203)    at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:80)    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)

This error occurs because the. class file is encrypted and cannot be correctly decrypted during decryption.