java.lang.UnsupportedClassVersionError: Bad version number in .class file

[Former Member]

Hi, Dynpro gives error. I also checked the SAP note 1113811. It doesnt have any info about this error.

I have the NWDS version - levels same as j2ee server. Bother are NW CE from same installation DVD's.

Any idea on the issue?

java.lang.UnsupportedClassVersionError: Bad version number in .class file

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:664)

at com.sap.engine.boot.loader.ResourceMultiParentClassLoader.loadClassLocal(ResourceMultiParentClassLoader.java:183)

at com.sap.engine.boot.loader.MultiParentClassLoader.findClassInLoaderGraph(MultiParentClassLoader.java:312)

at com.sap.engine.boot.loader.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:271)

at com.sap.engine.boot.loader.MultiParentClassLoader.loadClass(MultiParentClassLoader.java:243)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:363)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:242)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:62)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingComponent.<init>(DelegatingComponent.java:78)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:380)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:527)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.doPreprocessing(ClientApplication.java:1338)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.delegateToApplicationDoPreprocessing(AbstractExecutionContextDispatcher.java:146)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.DispatchHandlerForAppPreprocessing.doService(DispatchHandlerForAppPreprocessing.java:35)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.AbstractDispatchHandler.service(AbstractDispatchHandler.java:127)

at com.sap.engine.services.servlets_jsp.server.deploy.impl.module.IRequestDispatcherImpl.dispatch(IRequestDispatcherImpl.java:95)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.ExecutionContextDispatcher.dispatchToApplicationDoPreprocessing(ExecutionContextDispatcher.java:100)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:74)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.dispatch(ApplicationSession.java:571)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.dispatch(ApplicationSession.java:602)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doPreprocessing(ApplicationSession.java:252)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doPreprocessing(ClientSession.java:677)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:239)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:258)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.delegateToRequestManager(AbstractExecutionContextDispatcher.java:202)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.DispatchHandlerForRequestManager.doService(DispatchHandlerForRequestManager.java:38)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.AbstractDispatchHandler.service(AbstractDispatchHandler.java:127)

at com.sap.engine.services.servlets_jsp.server.deploy.impl.module.IRequestDispatcherImpl.dispatch(IRequestDispatcherImpl.java:95)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.ExecutionContextDispatcher.dispatchToRequestManager(ExecutionContextDispatcher.java:140)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:92)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:104)

at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doContent(AbstractDispatcherServlet.java:87)

at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doGet(AbstractDispatcherServlet.java:54)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)

at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:140)

at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:37)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:466)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:291)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:396)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:385)

at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:48)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:76)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:240)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:78)

at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.ResponseLogWriter.process(ResponseLogWriter.java:60)

at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.DefineHostFilter.process(DefineHostFilter.java:27)

at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.MonitoringFilter.process(MonitoringFilter.java:29)

at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.MemoryStatisticFilter.process(MemoryStatisticFilter.java:43)

at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.filters.DSRHttpFilter.process(DSRHttpFilter.java:42)

at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)

at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)

at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:425)

at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:250)

at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:45)

at com.sap.engine.core.thread.execution.Executable.run(Executable.java:109)

at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:314)

Thanks in advance..

[Former Member · Accepted solution]

Hi Abdullah,

Check the following wiki:

https://www.sdn.sap.com/irj/scn/wiki?path=/display/java/netweaver%252bdeveloper%252bstudio%252b(NWDS...

It tells how to solve similar issue.

Regards.

Rajat

[Former Member]

Thanks Rajat Jain . That Worked!!!!!

[piyush_kumar6]

Hi Abdullah ,

This error comes when we compile/build our application on higher version of jdk

than the jdk version of server.

So you just need to change the your local pc jdk version ( better to use jdk 1.4....)

and build your application again and deploy it on server.

I think you are having jdk 1.5 or later version on your pc. I am sure it will solve your problem.

Regards,

Piyush

[former_member192434]

i have faced the similar porblem.....it gets resoveld by setting up JER and JDK version same..

check the JDK version......you need to have same version of JDK......CE supports JDK 1.5 and above ....

thanks