title: Cant debug in eclipse ide
body: <p>I am trying to debug a code using f5 and started step by step debugging. But when I pressed f5 in the next step the breakpoint moves to thread class and then to threadgroup class. It iterates to many steps. </p>
  
  <p><a href="https://i.stack.imgur.com/7ETgB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7ETgB.png" alt="enter image description here"></a></p>
  
  <p>Here <code>l.add(edg)</code> its an object for user defined class.
  When I started debugging by pressing f5 in the next step I got</p>
  
  <p><a href="https://i.stack.imgur.com/M2vXT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/M2vXT.png" alt="enter image description here"></a></p>
  
  <p>It continuously iterates through all the thread classes..
  Why and what is the problem behind this issue?
  How to overcome this problem?</p>