Intermittent Connectivity Issues From Oracle Application Server 10gR2 to Oracle Exadata 11g RAC (Doc ID 1400856.1)

Last updated on FEBRUARY 14, 2025

Applies to:

Symptoms

Intermittent connectivity errors are noticed when an application deployed
to Oracle Application Server (OAS) 10.1.2.0.2 talks to Oracle Database 11.2.0.2.0 (Exadata).

The following exception is seen in the application logs:

11/11/17 07:34:23 ABC: Servlet error
java.lang.NullPointerException
at _include._header._jspService(_header.java(Compiled Code))
at com.orionserver[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].http.OrionHttpJspPage.service(OrionHttpJspPage.java(Compiled Code))
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java(Compiled Code))
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java(Compiled Code))
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.include(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.EvermindPageContext.include(EvermindPageContext.java(Compiled Code))
at _exception._jspService(_exception.java:55)
at com.orionserver[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].http.OrionHttpJspPage.service(OrionHttpJspPage.java(Compiled Code))
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java(Compiled Code))
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java(Compiled Code))
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java(Compiled Code))
at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java(Compiled Code))
at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java(Compiled Code))
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java(Compiled Code))
at org.apache.struts.action.ActionServlet.process(ActionServlet.java(Inlined Compiled Code))
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java(Compiled Code))
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:568)


Observations
On testing the datasource with a simple java program (standalone) at the time of issue, it was noticed that the datasource connections were broken.

Changes

Upgraded database from 10g to 11g.

Cause

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