ASSERTION FAILED

[Himanshu Tageja]

I have an application which basically parses the XML content, updates DB and writes an result code in respose.
This application is used is two ways:
A> XML is pushed locally
B> XML is pushed from a remote application

On case A> no problem.
But on case B> we encounter the below exceptions at server :
weblogic.utils.AssertionError: ***** ASSERTION FAILED *****[ Assertion violated ]
at weblogic.utils.Debug.assertion(Debug.java:53)
at weblogic.servlet.internal.ServletRequestImpl.mergePostParams(ServletRequestImpl.java:1343)
at weblogic.servlet.internal.ServletRequestImpl.parseQueryParams(ServletRequestImpl.java:1206)
at weblogic.servlet.internal.ServletRequestImpl.getParameter(ServletRequestImpl.java:1409)
at weblogic.servlet.internal.ServletRequestImpl.initSessionInfo(ServletRequestImpl.java:2534)
at weblogic.servlet.internal.ServletRequestImpl.getSession(ServletRequestImpl.java:2221)
at weblogic.servlet.security.internal.SecurityModule.getCurrentUser(SecurityModule.java:274)
at weblogic.servlet.internal.WebAppServletContext.handleException(WebAppServletContext.java:4137)
at weblogic.servlet.internal.WebAppServletContext.handleThrowableFromInvocation(WebAppServletContext.java:3966)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3908)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2766)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
These exceptions are generated after the XML is parsed, database is updated.
As per the analysis done until now, these exceptions are logged just when the result code is written to response via PrintWriter.

Server : Weblogic 8.1 sp5

Thanks in advance to suggest any way to resolve.