title: Eclipse RCP OSGi Conflict org.mortbay.jetty
body: <p>When starting my Eclipse RCP application, I experience the following error:</p>
  
  <p>!MESSAGE Bundle org.eclipse.equinox.http.jetty_2.0.0.v20090520-1800 [154] was not resolved.
  !SUBENTRY 2 org.eclipse.equinox.http.jetty 2 0 2013-01-21 17:31:55.618
  !MESSAGE Package uses conflict: Import-Package: org.mortbay.jetty; version="[6.1.0,7.0.0)"</p>
  
  <p>This leads to the problem, that within the RCP application, the help system cannot be started (due to a ClassNotFoundException).</p>
  
  <p>As far as I understand it, there is some problem with the bundle org.mortbay.jetty in the sense that it is present in a wrong version, or multiple incorrect versions. So I started my Eclipse RCP application with the program argument -console in order to get an OSGi console.</p>
  
  <p>I type </p>
  
  <pre><code>osgi&gt; packages org.mortbay.jetty
  </code></pre>
  
  <p>to find out about all imports and exports of this package. Which gives me the following result:</p>
  
  <pre><code>org.mortbay.jetty; version="6.1.15"&lt;org.mortbay.jetty.server_6.1.15.v200905151201 [491]&gt;
  </code></pre>
  
  <p>But this seems okay to me. Obviously, org.mortbay.jetty is exported by org.mortbay.jetty.server and it's exported version is  6.1.15, which is in the range of [6.1.0,7.0.0). Furthermore, when my colleagues try to start the application, they encounter no problem whatsover.</p>
  
  <p>I also tried to use a fresh workspace for the RCP application but that didn't help as well ... I'm really clueless now ...</p>