title: 3rd party .jar includes with Google App Engine
body: <p>I am writing a Google App Engine app using Java that uses 3rd party libraries. I am getting a "java.lang.NoClassDefFoundError" when running the app when it hits the line with references to the 3rd party library. This app works when creating a normal servlet, so I am pretty sure the code is correct. </p>
  
  <p>I am developing in Eclipse. </p>
  
  <p>Does the app engine not allow 3rd party libraries?     </p>
  
  <p>Do I need to configure the class path differently? </p>
  
  <p>HELP!!</p>