title: Jetty debug mode
body: <p>I have a webapp that I launch on a jetty version 7.5.1 with runjettyrun 1.3.3. It works fine. But when I try to launch jetty in debug mode I got these errors sack trace in eclipse :</p>
  
  <pre><code>livraison (2) [Jetty Webapp]    
      runjettyrun.Bootstrap at localhost:60282    
          Thread [main] (Suspended (exception ClassNotFoundException))    
              owns: Object  (id=23)   
              owns: Object  (id=24)   
              URLClassLoader$1.run() line: not available [local variables unavailable]    
              URLClassLoader$1.run() line: not available  
              AccessController.doPrivileged(PrivilegedExceptionAction&lt;T&gt;, AccessControlContext) line: not available [native method]   
              Launcher$ExtClassLoader(URLClassLoader).findClass(String) line: not available   
              Launcher$ExtClassLoader(ClassLoader).loadClass(String, boolean) line: not available 
              Launcher$AppClassLoader(ClassLoader).loadClass(String, boolean) line: not available 
              Launcher$AppClassLoader.loadClass(String, boolean) line: not available  
              Launcher$AppClassLoader(ClassLoader).loadClass(String) line: not available  
              LauncherHelper.checkAndLoadMain(boolean, int, String) line: not available   
      C:\Program Files\Java\jre7\bin\javaw.exe (22 août 2014 14:36:09)    
  </code></pre>
  
  <p>It says there is a ClassNotFoundException but doesn't say what one. How could I found it ? </p>