Your command contains an error, try:
java -jar truck-1.0.0.jar http://184.108.40.206:80/Thingworx/WS 6dXXXX-ecb3-42fe-9ad5-9ea4ef82c300
The ws:// isn't necessary at the beginning, check your source code as to whether you need the http:\\ as well, I've seen some code examples that prepend that or https:// depending on configuration.
If you modify your command so that you add >> logfile.txt at the end, you'll get a text file containing the system out, that will help you with debugging. Delete or re-name the logfile before each start of the java app. If you still have problems, you can also include the log file in the follow up question.
I was tried that http:// binding replace with ws: but did not establish connection between my java simulator and Thingworx in Remote Thing.
Would you suggest me about how to call REST API for http://ge2-5606.cloud.thingworx.com/Thingworx/Composer/index.html online Thingworx platform to property value set to Things.