I faced the following issue while creating the MDS connection in Jdeveloper 126.96.36.199
ORABPEL-30503 : Invalid Token Error in Verification Service. Invalid Token Error in Verification Service. Received invalid token in getTokenType. Verify that correct token is passed
Copy the bpm-services.jar from the server Replace the bpm-services.jar on the client application with the one from the server Ensure that after any patches are applied that the jars on the server are replaced in the client application. This also applies to using jars within JDeveloper which can become out of sync due to patches not being applied on both dev and server machines. You may need to replace the bpm-services.jar located here JDeveloper/soa/modules/oracle.soa.workflow_11.1.1/bpm-services.jar with the one located here [soa_install_dir]/soa/modules/oracle.soa.workflow_11.1.1/bpm-services.jar.