title: Java product and plugin in eclipse require different library versions
body: <p>I am trying to test an eclipse product with the Java SWTBot, unfortunetly the product i am testing defines plenty of libraries in the target plattform, like older versions of <code>org.eclipse.jface</code> or <code>org.junit</code>.</p>
  
  <p>Now i cannot setup the SWTBot in eclipse, how can i configure the startup so that i have e.g. two versions of the junit library (4.10 &amp; 4.12). I tried adding an additional jUnit library, but i cannot reference it as plugin dependency or import it as package.</p>
  
  <pre><code>!SUBENTRY 2 org.eclipse.swtbot.swt.finder 2 0 2017-03-13 14:04:57.536
  !MESSAGE Missing imported package org.junit_4.12.0.
  </code></pre>
  
  <p>Best regards,
  John</p>