title: How to run two instances of the same java program in parallel?
body: <p>I have a java program which uses <code>HttpUrlConnection</code> to make <code>POST</code> calls. What I want to do now is to see if there are 2-3 parallel calls making the same changes, then what happens. Is each call able to make the rewuired changes, and if not then which call is given precedence.
  To debug for this, I need to run parallel instances of the same java program in eclipse. How can this be done?
  I don't want to use threads, a totally independent execution of the same program.</p>