title: Maven checkstyle plugin: Print warnings to console
body: <p>I cant seem to figure out how to get maven-checkstyle-plugin to print warnings to the console when I run the check goal. </p>
  
  <p>If I configure as:</p>
  
  <pre><code>&lt;module name="Checker"&gt;
      &lt;module name="TreeWalker"&gt;
          &lt;module name="NPathComplexity"&gt;
              &lt;property name="max" value="5" /&gt;
              &lt;property name="severity" value="warning" /&gt;
          &lt;/module&gt;
      &lt;/module&gt;
  &lt;/module&gt;
  </code></pre>
  
  <p>...i see nothing in console and the check does not fail. If I change the severity to error, the check fails.</p>
  
  <p>Any ideas? Am I missing something?</p>
  
  <p>Plugin config is as follows</p>
  
  <pre><code>&lt;plugin&gt;
                  &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
                  &lt;artifactId&gt;maven-checkstyle-plugin&lt;/artifactId&gt;
                  &lt;version&gt;2.9.1&lt;/version&gt;
                  &lt;configuration&gt;
                      &lt;includeTestSourceDirectory&gt;true&lt;/includeTestSourceDirectory&gt;
                      &lt;logViolationsToConsole&gt;true&lt;/logViolationsToConsole&gt;
                      &lt;configLocation&gt;
                          rules.xml&lt;/configLocation&gt;
                  &lt;/configuration&gt;
                  &lt;executions&gt;
                      &lt;execution&gt;
                          &lt;phase&gt;compile&lt;/phase&gt;
                          &lt;goals&gt;
                              &lt;goal&gt;check&lt;/goal&gt;
                          &lt;/goals&gt;
                      &lt;/execution&gt;
                  &lt;/executions&gt;
              &lt;/plugin&gt;
  </code></pre>