Cannot process an HTTP request to servlet [DialogServlet] in [manufacturing] web application.

[Former Member]

Hi all,

Now I can't open any new search help that use with the dialogservlet .

And the log have the following error message :

500 Internal Server Error is returned for HTTP request
[http://xxxx:xxxxxx/manufacturing/com/sap/me/system/common/client/ErrorPage.jsp]:

  component [DialogServlet],
  web module [manufacturing],
 
application [sap.com/me~ear],
  DC name [sap.com/me~ear],
  CSN
component[],
  problem categorization [com.sap.ASJ.web.000137],
 
internal categorization [254340799].


[EXCEPTION]
java.lang.NullPointerException: while trying to invoke
the method java.lang.Throwable.printStackTrace(java.io.PrintWriter) of an object
loaded from local variable 'e'
at
com.sap.me.frame.Utils.getStackTrace(Utils.java:764)
at
JEE_jsp_com_sap_me_system_common_client_ErrorPage_1410450_1404183172000_1404185122991._jspService(JEE_jsp_com_sap_me_system_common_client_ErrorPage_1410450_1404183172000_1404185122991.java:137)
at
com.sap.engine.services.servlets_jsp.lib.jspruntime.JspBase.service(JspBase.java:102)
at
com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:152)
at
com.sap.engine.services.servlets_jsp.server.servlet.JSPServlet.service(JSPServlet.java:428)
at
com.sap.engine.services.servlets_jsp.server.servlet.JSPServlet.service(JSPServlet.java:147)
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.runtime.RequestDispatcherImpl.doCached(RequestDispatcherImpl.java:655)
at
com.sap.engine.services.servlets_jsp.server.runtime.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:488)
at
com.vatti.mes.common.web.BaseServlet.doError(BaseServlet.java:61)
at
com.vatti.mes.common.dialog.web.DialogServlet.doPost(DialogServlet.java:125)
at
com.vatti.mes.common.dialog.web.DialogServlet.doGet(DialogServlet.java:53)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
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)

[saidfanni]

Hi Ivan,

could you please give more details about the solution

I have the same issue

Thanks

Said

[sergiy_katerinich]

Hi!

I guess it refers to your custom code:

at 
com.vatti.mes.common.dialog.web.DialogServlet.doPost(DialogServlet.java:125)
at 
com.vatti.mes.common.dialog.web.DialogServlet.doGet(DialogServlet.java:53)

So you need to ask your developers.

Regards,

Sergiy

[Former Member]

Hi Sergiy,

Thank you for your reminding.

It's strange that  why all the program work with DialogServlet will down today ,but  yesterday work normally and I haven't deploy any new changes or new package to the server.

Best Regards,

Ivan

[Former Member]

Hi all,

I am sure that it should not be cause by the customer code ,as our DEV system with the same code without problem.

Best Regards,

Ivan

[sergiy_katerinich]

Hi Ivan!

The fact the this code worked fine yesterday or is working fine in Dev but not in another system proves nothing. On the contrary, the stack trace confirms that the problem stems from your custom code com.vatti.mes.common.web.BaseServlet.doError(BaseServlet.java:61). The obvious thing is that the method here is called "doError" that likely means you either face some error there or intentionally generate error message. After that the system tries to log the error message but it looks as if com.sap.me.frame.Utils.getStackTrace method gets null as an input parameter e. How does it get triggered and what is passed into - this is a question to your developers.

Regards,

Sergiy

[Former Member]

Hi  Sergiy,

After I check our code , this problem cause by one of account locked.

It have been solved . Thank you very much!

Best Regards,

Ivan