Webdynpro java - 500 Internal Server Error

[Former Member]

Hi,

I am working on Webdynpro java with Portal 7.3.

Currently I am getting 500-internal server error while interacting with Webdynpro java UI screen. Sometime it working fine but sometime it give this error on the screen. Please find the error log below for more details.

Could you please let me know if you have faced this type of error and how can we resolve this issue?

NWA - Logs

500 Internal Server Error is returned for HTTP request [http://bpm-j-bpp.webapps.marksandspencer.com:80/webdynpro/resources/sap.com/pb/PageBuilder]:
component [dispatcher],
web module [webdynpro/resources/sap.com/pb],
application [sap.com/pb],
DC name [],
CSN component[],
problem categorization [],
internal categorization [-1202793182].

[EXCEPTION]
java.lang.IllegalStateException: UserDataInternalScopeMaintainer is null within valid ApplicationSession: ApplicationSession: ApplicationIdentificationHandle(appName=sap.com/pb/com.sap.portal.pb.PageBuilder, appId=mHVcoTa2eS3JQadBlFZtmw--atCcSnHa2bcR2KSPEe1z3w--, clientWindowId=WID1377093163304)
at com.sap.tc.webdynpro.clientserver.session.SharedScopeMaintainer.getUserDataInternalScopeMaintainer(SharedScopeMaintainer.java:407)
at com.sap.tc.webdynpro.clientserver.session.SharedScopeMaintainer.getUserLocale(SharedScopeMaintainer.java:327)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.createCMIContext(ApplicationSession.java:1332)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initRequestEnvAndApplicationSessionTask(ApplicationSession.java:1323)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doPreprocessing(ApplicationSession.java:606)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:349)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:325)
at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doContent(AbstractDispatcherServlet.java:87)
at com.sap.tc.webdynpro.serverimpl.wdc.DispatcherServlet.doContent(DispatcherServlet.java:89)
at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doPost(AbstractDispatcherServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:152)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:38)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:457)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:210)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:441)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:430)
at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:38)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:81)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:276)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:81)
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.SessionSizeFilter.process(SessionSizeFilter.java:26)
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:57)
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: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.server.Processor.chainedRequest(Processor.java:475)
at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:269)
at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:56)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)
at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

Thanks,

Pankaj

[Former Member]

Hi,

Can you please explain that the what is the port 80 that is called in the error log.

ttp://bpm-j-bpp.webapps.marksandspencer.com:80/webdynpro/resources/sap.com/pb/PageBuilder]:

Another thing is that is this error only in IE or other browsers.

Is the error coming when you try to same empty iview.

Note 1798484 - iview personalization empty value show IllegalStateException

Thanks

Rishi Abrol

[Former Member]

Hi Rishi,

That url is for server Host and Port number

We are using IE 8 only. This issue occurs sometime but after few min it work fine by itself.

Regards,

pankaj

[Former Member]

Hi

When this Error 500 occurs - please try to create a new browser session and try again.

It is important to create a new IE session (and not a new window) meaning:

From IE menu >> File >> New Session >> Try to interact again.

If in a new browser session it works fine - that it is a session cookie mismatch that could happen if you use the same browser to log in to a different portal.

Regards

Adi J.

[Former Member]

Hi Adi,

Thanks you for the inputs.

We have already tried the same, even we tried closing all browser session and the open a fresh IE window, but still faced the same issue.

So I am not sure if any thing to check at the server side. Please advice.

Regards,

pankaj

[Manas_Vincit]

Hi Pankaj,

What is your session timeout in webdynpro java ? also when this error come what is log updated in default trace .

Thanks

Manas Behra

[Former Member]

Hi Manas,

DefaultExpirationTime = 3600 in NWA

Error screensot and NWA trace log i have updated in my 1st message in this disscussion.

Please help.

Thanks,

Pankaj

[Manas_Vincit]

Hi pankaj ,

Could you provide default trace when same issue occours ? NWA exception log is something diiferent .  default trace have some more information about issue ( why and when it occured ) .

THanks

Manas Behra