When starting the GS, this error is thrown when starting  starting HTTPS service.

java.io.IOException: Failed to activate application 'ddtp': Failed to start connector on port '39900': Connector failed to start: Protocol handler initialization failed: 0.0.0.0:39900/PORT_SECURE_CA

This can occur on the initial set up of the HTTPS service on the GS.

java.property.TIBCO_SECURITY_VENDOR=j2se" 

property in Administrator.tra that mismatches the security provider used while creating GS token. To overcome this issue you need to use following workaround

1. Stop Admin server
2. Comment java.property.TIBCO_SECURITY_VENDOR=j2se property in Administrator.tra file
3. Restart admin server
4. Recreate GS token
5. Stop Admin server and uncomment a property again and restart.
6. Start the GS engine