title: How do I debug a java.lang.illegalStateException that occurs when rebasing a ClearCase view?
body: <h1>Background</h1>
  <p>I have been trying for the last week to rebase a clearcase view for my project, but every time I try I get a weird null exception depicted in the two windows below:
  <a href="https://i.stack.imgur.com/qPBhq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qPBhq.png" alt="enter image description here" /></a>
  I do not know why this is occurring and need help determining how to even begin fixing this issue.</p>
  <p>So far here is what I have tried:</p>
  <ol>
  <li>Restarting the client</li>
  <li>Restarting my computer</li>
  <li>Refreshing the view and updating.</li>
  <li>Updating my eclipse environment.</li>
  </ol>
  <p>I have also seen a fix on the <a href="https://www.ibm.com/support/pages/apar/PI64193" rel="nofollow noreferrer">IBM website</a> for a similar issue, but my version of Clearteam explorer is well beyond the version it prescribes for a fix:</p>
  <blockquote>
  <p>When you are trying to login with the IBM Rational ClearTeam
  Explorer (CTE) version 8.0.1.11 and later with the Eclipse
  plugin, you may receive the following error: CRMAP7009: Command
  &quot;Login&quot; failed: Error: &quot;java.lang.IllegalStateException: null&quot;</p>
  </blockquote>
  <blockquote>
  <p>This behavior does not occur with CTE 8.0.1.10 with the Eclipse
  plugin or with the standalone CTE 8.0.1.11 client.
  It only occurs using the Sun JRE 6, not when using the IBM JRE
  6.</p>
  </blockquote>
  <p>My clearteam explorer version is 9.0.2:
  <a href="https://i.stack.imgur.com/N6lIO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/N6lIO.png" alt="enter image description here" /></a></p>
  <h1>Question</h1>
  <p>What are other possible actions I can take to fix the null pointer issue mentioned above?</p>