How to take file path from command line for sending jms file on queue.

I believe that you wanted to input a file name using command line and send the contents of that file as message. Is it so?

Then you can just use property expansion say ${#Project#MESSAGE_FILE} in your script to get the dynamic file name as input.

While running command line, pass -PMESSAGE_FILE=</absolute/file/path>

And hope you know how to get the file contents like:

def contents = new File(context.expand('${#Project#MESSAGE_FILE}')).text

Now 'content' variable has your file content.

Hope this helps.