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12.2 - Login Error 'You have encountered an unexpected error. Please contact the system administrator' With 'java.lang.NullPointerException at _pages.__oaerrorpage._jspService(' In Oacore Logs (Doc ID 2034372.1)

Last updated on JUNE 16, 2017

Applies to:

Oracle Applications Framework - Version 12.2.3 to 12.2.4 [Release 12.2]
Oracle E-Business Suite Technology Stack - Version 12.2.3 to 12.2.4 [Release 12.2]
Information in this document applies to any platform.
***Checked for Relevance on 26-JAN-2017***


E-Business Suite 12.2.3 and above

Oacore managed server log (and out files) contain the following error messages:


at _pages.__oaerrorpage._jspService(
at weblogic.servlet.jsp.JspBase.service(
at weblogic.servlet.internal.StubSecurityHelper$
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(
at weblogic.servlet.internal.ServletStubImpl.execute(
at weblogic.servlet.internal.ServletStubImpl.execute(
at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(
at weblogic.servlet.internal.RequestDispatcherImpl.include(
at weblogic.servlet.jsp.PageContextImpl.include(
at weblogic.servlet.jsp.PageContextImpl.handlePageException(
at _pages.__oa._jspService(


This error results in end user login issues and Framework exception messages as below:


You have encountered an unexpected error. Please contact the system administrator for assistance.




 The error usually occurs after applying <Patch 19858552>:R12.FWK.C.


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