Weblogic JARs cause issue in DevTest

Products

• CA Application Test
• CA Continuous Application Insight (PathFinder)

Issue/Introduction

Trying to login to portal but getting below error:
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Portal error, can not authenticate user. Please make sure the Portal service is running.
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Also see the JMS connectivity issue with the below exception:
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Error: Error creating connection with factory INT 719 Connection Factory: [JMSClientExceptions:055053]Error creating connection to the server: java.rmi.MarshalException: CORBA MARSHAL 0 No; nested exception is: 
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Environment

All supported DevTest releases

Cause

Below Weblogic jars in DevTest_Home/lib folder caused the issue.
weblogic.jar 
wlclient.jar 
wljmsclient.jar 

Resolution

Moving the Weblogic JARs from DevTest/lib -->DevTest/lib/shared folder resolved the issue.

Additional Information

Recommended to add any third party JARs to DevTest_Home/lib/shared folder instead of DevTest/lib folder.