Do we need to solve ConcurrentModificationException?
<p>I caught an exception with multi thread programing. </p>

<p>I saw it at first, but I don't know how to solve it. </p>

<p>then I search about ConcurrentModificationException then it says</p>

<blockquote>
  <p>ConcurrentModificationException should be used only to detect bugs</p>
</blockquote>

<p>What does it mean? Maybe it says "you should only catch this exception" doesn't it?? or not??</p>

<p>Should I solve it??</p>
