title: How to exclude dependency in a Maven plugin?
body: <p>I have a project that needs the following Maven jibx plugin:</p>
  
  <pre><code>  &lt;build&gt;
      &lt;plugins&gt;
        &lt;plugin&gt;
          &lt;groupId&gt;org.jibx&lt;/groupId&gt;
          &lt;artifactId&gt;maven-jibx-plugin&lt;/artifactId&gt;
          &lt;version&gt;1.2.2&lt;/version&gt;
          ...
        &lt;/plugin&gt;
      &lt;/plugins&gt;
    &lt;/build&gt;
  </code></pre>
  
  <p>Inside the jibx plugin pom, there is a xpp3 dependency which I want to exclude from my project build process (due to some reason I cannot have it inside my private repository).</p>
  
  <p>Is there a way to config my pom.xml (not the plugin pom) to exclude that dependency? </p>
  
  <p><strong>EDIT</strong>: I tried to remove the xpp3 dependency from the plugin pom and the project could be built successfully, so I know the dependency is not mandatory.</p>