title: Maven plugin execution ID
body: <p>I have a simple question about execution ID in maven plugin.</p>
  
  <pre><code>    &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
      &lt;artifactId&gt;gwt-maven-plugin&lt;/artifactId&gt;
      &lt;version&gt;2.7.0&lt;/version&gt;
      &lt;executions&gt;
      &lt;execution&gt;
          &lt;id&gt;gwt-process-resources&lt;/id&gt;
          &lt;goals&gt;
              &lt;goal&gt;i18n&lt;/goal&gt;
              &lt;goal&gt;generateAsync&lt;/goal&gt;
          &lt;/goals&gt;
      &lt;/execution&gt;
  &lt;/executions&gt;
  </code></pre>
  
  <p>Can someone explain to me what does this executionId does? How are goals triggered? Can I call directly the "gwt-process-resources" in order to execute both goals? If yes, how can I do that?</p>