skywalking探针tomcat8.0.28报错解决

在部署skywalking agent的时候遇到一个异常

环境如下：

tomcat8.0.28 catalina.out 日志报如下错误

30-Apr-2019 10:25:57.664 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /root/apache-tomcat-8.0.28/webapps/ROOT has finished in 610 ms
30-Apr-2019 10:25:57.664 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /root/apache-tomcat-8.0.28/webapps/docs
30-Apr-2019 10:25:58.223 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:/root/agent/skywalking-agent.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:176)
	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:95)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5080)
	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$DeployDirectory.run(HostConfig.java:1816)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

　　经过开源项目搜索，终于找到答案，原因是因为 agent代理 skywalking-agent.jar  目录结构下version文件夹下的文件导致

githup开源社区相关解答如下

https://github.com/apache/skywalking/issues/2354

 

解决方案就是 删除skywalking-agent.jar 这个jar包下的 version文件夹

由于公司限制删除好的agent jar包稍后上传