title: Jdk1.7.0_79.jdk and AppEngine: Class JavaLaunchHelper is implemented in both
body: <p>I have a simple Google App Engine project. When I try to run as web application on localhost I get this:</p>
  
  <pre><code>objc[49307]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined.
  Usage: &lt;dev-appserver&gt; [options] &lt;app directory&gt;
  </code></pre>
  
  <p><strong>Config:</strong> MAC OSX El Capitan + Eclipse 4.4.2 + Google Plugin for Ecplise 4.4</p>
  
  <p>I thought that bug was already fixed by Oracle with same problem on version 1.7.0_45:</p>
  
  <ul>
  <li><a href="https://stackoverflow.com/questions/20794751/class-javalaunchhelper-is-implemented-in-both-one-of-the-two-will-be-used-whic">Class JavaLaunchHelper is implemented in both. One of the two will be used. Which one is undefined</a>  </li>
  <li><a href="https://stackoverflow.com/questions/18794573/objc10012-class-javalaunchhelper-is-implemented-in-both-libinstrument-dyl">objc[10012]: Class JavaLaunchHelper is implemented in both ... libinstrument.dylib. One of the two will be used. Which one is undefined</a>)</li>
  </ul>
  
  <p>So I can't test locally my app with Google Plugin For Eclipse.. What's wrong ?</p>