Jetspeed 2 and Java 8

Hi,

I want to start jetspeed 2 on java 8. On starting I get following exception:

ERROR 2014-06-03 13:46:31,865 - Request error encountered while 
processing portal request: Failed to initalize jetspeed. 
org.apache.jetspeed.exception.JetspeedException: Jetspeed Initialization 
exception!
javax.servlet.ServletException: Failed to initalize jetspeed. 
org.apache.jetspeed.exception.JetspeedException: Jetspeed Initialization 
exception!
     at 
org.apache.jetspeed.engine.JetspeedServlet.invoke(JetspeedServlet.java:295)
     at 
org.apache.jetspeed.engine.JetspeedServlet.service(JetspeedServlet.java:330)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at 
org.apache.jetspeed.container.session.PortalSessionValidationFilter.doFilter(PortalSessionValidationFilter.java:92)
     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at 
org.apache.jetspeed.engine.servlet.XXSUrlAttackFilter.doFilter(XXSUrlAttackFilter.java:52)
     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at 
org.apache.jetspeed.util.ServletRequestCleanupService.doFilter(ServletRequestCleanupService.java:90)
     at 
org.apache.jetspeed.util.ServletRequestCleanupFilter.doFilter(ServletRequestCleanupFilter.java:52)
     at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
     at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
     at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
     at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
     at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
     at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
     at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
     at 
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
     at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.jetspeed.exception.JetspeedException: Jetspeed 
Initialization exception!
     at 
org.apache.jetspeed.engine.JetspeedEngine.start(JetspeedEngine.java:142)
     at 
org.apache.jetspeed.engine.JetspeedServlet.init(JetspeedServlet.java:202)
     at 
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
     at 
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
     at 
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4350)
     at 
org.apache.catalina.core.StandardContext.start(StandardContext.java:4659)
     at 
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
     at 
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
     at 
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
     at 
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:637)
     at 
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:563)
     at 
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498)
     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
     at 
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
     at 
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
     at 
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
     at 
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
     at 
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
     at 
org.apache.catalina.core.StandardService.start(StandardService.java:519)
     at 
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast 
to java.lang.Class
     at 
org.apache.jetspeed.components.ApplicationEventMethodsInvoker.findMethodInvokersByEvent(ApplicationEventMethodsInvoker.java:132)
     at 
org.apache.jetspeed.components.ApplicationEventMethodsInvoker.onApplicationEvent(ApplicationEventMethodsInvoker.java:96)
     at 
org.springframework.context.event.SimpleApplicationEventMulticaster$1.run(SimpleApplicationEventMulticaster.java:78)
     at 
org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
     at 
org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:76)
     at 
org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:274)
     at 
org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:736)
     at 
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:383)
     at 
org.apache.jetspeed.components.SpringComponentManager.start(SpringComponentManager.java:313)
     at 
org.apache.jetspeed.engine.JetspeedEngine.start(JetspeedEngine.java:119)
     ... 27 more

With Java 7 it works. Has someone an idea?


kind regards,

Frank