Invoking a webserivce but WsOverriden End points Addresses return Null

Any idea i am invoking a soap web service global web service processEngineConfig.getWsOverridenEndpointAddresses()); this return null

Could you explain what you’re tying to do?
The getWsOverridenEndpointAddresses should never return null, as its always initialized. The goal of that setting is to override endpoints that already are defined in deployed process definitions.