title: Maven Bundle Plugin: Export has private references
body: <p>After updating the <code>maven-bundle-plugin</code> from version <code>2.3.5</code> to version <code>2.4.0</code> running <code>mvn clean install</code> outputs some warning messages, which I don't fully understand. E.g.</p>
  
  <p><code>Export ch.entwine.weblounge.contentrepository.impl.index,  has 1,  private references [org.elasticsearch.action.bulk]</code></p>
  
  <p>I guess this has something to do with an embedded lib (elasticsearch). Here are parts of the POM:</p>
  
  <pre><code>&lt;dependencies&gt;
    ...
    &lt;dependency&gt;
      &lt;groupId&gt;org.elasticsearch&lt;/groupId&gt;
      &lt;artifactId&gt;elasticsearch&lt;/artifactId&gt;
      &lt;version&gt;0.19.9&lt;/version&gt;
    &lt;/dependency&gt;
    ...
  &lt;/dependencies
  ...
  &lt;Export-Package&gt;
    ...
    ch.entwine.weblounge.contentrepository.impl.index
    ...
  &lt;/Export-Package&gt;
  &lt;Embed-Dependency&gt;
    ....
    elasticsearch;inline=true
    ...
  &lt;/Embed-Dependency&gt;
  </code></pre>
  
  <p>What does the error message exactly mean?
  What is the recommended way to solve such problems?</p>