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From "Zack Macomber (JIRA)" <j...@apache.org>
Subject [jira] [Created] (WW-4659) Exception starting filter struts2 java.lang.IncompatibleClassChangeError: Implementing class
Date Wed, 13 Jul 2016 21:17:20 GMT
Zack Macomber created WW-4659:
---------------------------------

             Summary: Exception starting filter struts2 java.lang.IncompatibleClassChangeError:
Implementing class 
                 Key: WW-4659
                 URL: https://issues.apache.org/jira/browse/WW-4659
             Project: Struts 2
          Issue Type: Bug
          Components: Dispatch Filter
    Affects Versions: 2.3.28
         Environment: Ubuntu 16.04 LTS, JDK 7, Tomcat 8
            Reporter: Zack Macomber
            Priority: Blocker


My code compiles fine and my app deploys to Tomcat 8 but I'm getting the following error in
my Tomcat localhost log when the app attempts to start. Any ideas on how to resolve this (or
even how to get further debug info for where the issue is)?

I have enabled FINE logging on the localhost log and found several other filters starting
with no exceptions (see below updated log output). Why is the struts2 filter specifically
having issues and all of these other filters aren't?

Also as a test, I commented out the struts2 filter (org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
for me) and the application installs and starts with no issues. So, the problem is certainly
localized to the struts2 filter.

from my tomcat localhost log...

13-Jul-2016 16:22:34.847 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.listenerStart
Sending application start events
13-Jul-2016 16:22:35.225 INFO [http-nio-8080-exec-1] org.apache.catalina.core.ApplicationContext.log
Initializing Spring root WebApplicationContext
13-Jul-2016 16:22:36.224 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
Starting filters
13-Jul-2016 16:22:36.224 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'ApplicationInitFilter'
13-Jul-2016 16:22:53.465 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'monitoring'
13-Jul-2016 16:22:53.846 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'Tomcat WebSocket (JSR356) Filter'
13-Jul-2016 16:22:53.846 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'springSecurityFilterChain'
13-Jul-2016 16:22:53.848 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'javamelody'
13-Jul-2016 16:22:53.848 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
 Starting filter 'struts2'
13-Jul-2016 16:22:54.534 SEVERE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStart
Exception starting filter struts2
 java.lang.IncompatibleClassChangeError: Implementing class
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2541)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:858)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1301)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2541)
	at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:858)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1301)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1166)
	at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildClassFinder(PackageBasedActionConfigBuilder.java:416)
	at org.apache.struts2.convention.PackageBasedActionConfigBuilder.findActions(PackageBasedActionConfigBuilder.java:397)
	at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:354)
	at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:274)
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
	at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:970)
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:438)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:482)
	at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4689)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5329)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
	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:1092)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:473)
	at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1612)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1451)
	at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:897)
	at org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:335)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:614)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)

13-Jul-2016 16:22:54.541 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
Stopping filters
13-Jul-2016 16:22:54.541 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
 Stopping filter 'ApplicationInitFilter'
13-Jul-2016 16:22:54.564 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
 Stopping filter 'monitoring'
13-Jul-2016 16:22:54.781 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
 Stopping filter 'Tomcat WebSocket (JSR356) Filter'
13-Jul-2016 16:22:54.781 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
 Stopping filter 'javamelody'
13-Jul-2016 16:22:54.781 FINE [http-nio-8080-exec-1] org.apache.catalina.core.StandardContext.filterStop
 Stopping filter 'springSecurityFilterChain'
13-Jul-2016 16:22:54.781 INFO [http-nio-8080-exec-1] org.apache.catalina.core.ApplicationContext.log
Closing Spring root WebApplicationContext



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