title: Adding external jar in GWT
body: <p>I have a jar file with source code packed.</p>
  <p>i inserted the jar in war/WEB-INF/lib/xxx.jar Add to build path</p>
  <p>but when i run the project i got an error</p>
  <p><strong>Edited Added gwt.xml</strong></p>
  <pre><code>  &lt;module rename-to='bookmanagementsystem'&gt;
  
    &lt;inherits name='com.google.gwt.user.User'/&gt;
    &lt;inherits name='com.google.gwt.user.theme.standard.Standard'/&gt;
    &lt;inherits name='com.example.Book'&gt;&lt;/inherits&gt;
    &lt;entry-point class='com.example.Book.client.Index'/&gt;  
    
  &lt;/module&gt;
  </code></pre>
  <p><strong>Edited</strong></p>
  <p>I solved
  <strong>Plugin failed to connect to Development Mode server at 127.0.0.1:9997</strong></p>
  <p>Now i got a problem</p>
  <pre><code>Loading inherited module 'com.example.book'
           [ERROR] Unable to find 'com/example/book.gwt.xml' on your classpath; could be a typo, or maybe you forgot to include a classpath entry for source?
        [ERROR] Line 6: Unexpected exception while processing element 'inherits'
  </code></pre>