title: How do I solve ClassNotFoundException in a eclipse rcp build?
body: <p>I have build an eclipse feature project in eclipse juno and when I launch the program from the IDE everything is fine, no errors in the console.</p>
  
  <p>When I export the product it runs but it does not show the content of the parts that I created in the Application.e4xmi file (only a grey background). When I check the configuration folder in the exported folder there is a log file with following errors:</p>
  
  <pre><code>!ENTRY org.eclipse.e4.ui.workbench 4 0 2012-07-19 19:22:13.859
  MESSAGE Unable to load class 'be.yt.diepvriezer.ui.handlers.ExitHandler' from bundle '2'
  </code></pre>
  
  <blockquote>
    <p>!ENTRY org.eclipse.e4.ui.workbench 4 0 2012-07-19 19:22:13.859
    !MESSAGE Unable to load class 'be.yt.diepvriezer.ui.handlers.ExitHandler' from bundle '2'
    !STACK 0
    java.lang.ClassNotFoundException: be.yt.diepvriezer.ui.handlers.ExitHandler
        at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
        at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    .....</p>
  </blockquote>
  
  <p>And so on for every handler and part that I created in the application model.</p>
  
  <p>I checked the build.properties and manifest files and everything is there.</p>
  
  <p>Can somebody point me in the right direction how to solve this problem please ?</p>