title: Maven -DskipTests ignored
body: <p>I'm building a Maven project with following <a href="http://maven.apache.org/surefire/maven-surefire-plugin/">SureFire</a> configuration:</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;plugin&gt;
      &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
      &lt;artifactId&gt;maven-surefire-plugin&lt;/artifactId&gt;
      &lt;version&gt;${version.maven-surefire-plugin}&lt;/version&gt;
      &lt;configuration&gt;
          &lt;includes&gt;
              &lt;include&gt;**/*Test.java&lt;/include&gt;
          &lt;/includes&gt;
      &lt;/configuration&gt;
  &lt;/plugin&gt;
  </code></pre>
  
  <p>Problem is, that when I build it with <code>mvn clean install -DskipTests=true</code>, the tests are still being executed. What could be the problem? </p>
  
  <p>I tried both <code>-DskipTests</code>(which is from the <a href="http://maven.apache.org/surefire/maven-surefire-plugin/examples/skipping-test.html">Maven website</a>) and <code>-DskipTests=true</code>, which is added by IntelliJ Idea when I check "skip tests" checkbox.</p>
  
  <p>I don't use any Maven <code>settings.xml</code>.</p>
  
  <ul>
  <li>Maven version: 2.2.1</li>
  <li>Surefire plugin: 2.3</li>
  </ul>
  
  <p><strong>EDIT</strong>
  If I comment out the SureFire plugin configuration, the parameter behaves as I expect to. What could be the problem with the configuration above?</p>