500 Internal Server Error in Portal/Java stack

Old - SAP Error: 500   Internal Server Error
Web Dynpro Container/SAP J2EE Engine/7.00
Web Dynpro Container/SAP J2EE Engine/6.40
Failed to process request. Please contact your system administrator.

System: Portal, Netweaver, Java, ESS/MSS, CRM

Error Summary

While processing the current request, an exception occured which could not be handled by the application or the framework.

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Root Cause
The initial exception that caused the request to fail, was:


500, internal server error, javax.ejb.EJBException in the object EJBIuclidDispatcherBean.

Error 500- Internal Server Error
java.rmi.RemoteException: Error in ejbCreate:;nested exception is: javax.ejb.EJBException: nested exception is: javax.naming.NameNotFoundException: Unable to resolve 'jdbc.jts.wipPool' Resolved jdbc.jts;remianing name 'wipPool'

   java.lang.NullPointerException

    at com.testsystem.abcd.ess.basicsalary.fc.FcBasicSalary.onInit(FcBasicSalary.java:222)
    at com.testsystem.abcd.ess.basicsalary.fc.wdp.InternalFcBasicSalary.onInit(InternalFcBasicSalary.java:339)
    at com.testsystem.abcd.ess.basicsalary.fc.FcBasicSalaryInterface.onInit(FcBasicSalaryInterface.java:125)
    at com.testsystem.abcd.ess.basicsalary.fc.wdp.InternalFcBasicSalaryInterface.onInit(InternalFcBasicSalaryInterface.java:242)
    at com.testsystem.abcd.ess.basicsalary.fc.wdp.InternalFcBasicSalaryInterface$External.onInit(InternalFcBasicSalaryInterface.java:298)




Web Dynpro Code Generation Infos
testsystem.com/abcd~basicsalary

Analysis:
- program error, if already identified by SAP the correction and solution will be contained in newer version of SCA archive
- error in business package
- not correct DB server URL can cause this error
- caused by problem when connecting to database, caused by database driver
- accessing incorrect URL inside the iview

Solution:
- Download the latest version of the following SCA archive from SAP Service Marketplace and install it on the Java server
- some cases can use SAP Note tool SNOTE, sometimes not possible to use SNOTE, manual correction needed to implement adjustment
- checking database connection, update database driver

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