Can not pause while script is running

Hi,
When I running a script by ExecutorService.execute,cause this is a single thread executor,so before this script complete,I can not pause executing by V8Inspector.dispatchProtocolMessage("{ "id": 1, "method": "Debugger.pause" }"),actually,I can not do anything using dispatchProtocolMessage,because they're in diffrent thread,also can not use ExecutorService.execute to invoke V8Inspector.dispatchProtocolMessage because the script not complete this time.