title: How to run this maven plugin task from command line?
body: <p>I see in <a href="https://github.com/codenvy/che-core/blob/55af13c6f03bd5eaae5f93f008add55b9c46bb07/ide/che-core-ide-app/pom.xml#L268-L280" rel="nofollow">this POM.xml</a>, there is some code using <code>exec-maven-plugin</code>:</p>
  
  <pre><code>&lt;plugin&gt;
      &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
      &lt;artifactId&gt;exec-maven-plugin&lt;/artifactId&gt;
      &lt;executions&gt;
      &lt;execution&gt;
          &lt;id&gt;IDEInjector-client&lt;/id&gt;
          &lt;phase&gt;generate-sources&lt;/phase&gt;
          &lt;goals&gt;
              &lt;goal&gt;java&lt;/goal&gt;
          &lt;/goals&gt;
          &lt;configuration&gt;
              &lt;mainClass&gt;org.eclipse.che.util.IDEInjectorGenerator&lt;/mainClass&gt;
              &lt;arguments&gt;
                  &lt;argument&gt;--rootDir=${generated.sources.directory}&lt;/argument&gt;
              &lt;/arguments&gt;
          &lt;/configuration&gt;
      &lt;/execution&gt;
  &lt;/plugin&gt;
  </code></pre>
  
  <p>I wonder is it possible to run it from command line? Because it seems generate some java classes which is used by other files.</p>
  
  <p><strong>Question</strong>: How can I run it if it's runnable?</p>