title: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (default-cli) on project mallet
body: <p>When first running the example of <a href="http://mallet.cs.umass.edu/download.php" rel="nofollow">mallet</a> project, I got following error.
  My netbeans has Maven and also read the error instruction below. But I couldn't repair this problem. What should I do?</p>
  
  <blockquote>
    <p>Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:exec (default-cli) on project mallet: Command execution failed. Process exited with an error: 1 (Exit value: 1) -> [Help 1]</p>
    
    <p>To see the full stack trace of the errors, re-run Maven with the -e switch.
    Re-run Maven using the -X switch to enable full debug logging.</p>
    
    <p>For more information about the errors and possible solutions, please read the following articles:
    [Help 1] <a href="http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException" rel="nofollow">http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException</a></p>
  </blockquote>
  
  <p><strong>Pom file.</strong> </p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
    &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
    &lt;groupId&gt;cc.mallet&lt;/groupId&gt;
    &lt;artifactId&gt;mallet&lt;/artifactId&gt;
    &lt;version&gt;2.0.7-SNAPSHOT&lt;/version&gt;
    &lt;packaging&gt;jar&lt;/packaging&gt;
    &lt;name&gt;MAchine Learning for LanguagE Toolkit (MALLET)&lt;/name&gt;
    &lt;description&gt;
      MALLET is a Java-based package for statistical natural language processing,
      document classification, clustering, topic modeling, information extraction,
      and other machine learning applications to text.
    &lt;/description&gt;
    &lt;url&gt;http://mallet.cs.umass.edu/&lt;/url&gt;
    &lt;licenses&gt;
      &lt;license&gt;
        &lt;name&gt;Common Public License Version 1.0&lt;/name&gt;
        &lt;url&gt;http://www.eclipse.org/legal/cpl-v10.html&lt;/url&gt;
        &lt;distribution&gt;repo&lt;/distribution&gt;
      &lt;/license&gt;
    &lt;/licenses&gt;
    &lt;scm&gt;
      &lt;url&gt;http://hg-iesl.cs.umass.edu/hg/mallet&lt;/url&gt;
    &lt;/scm&gt;
    &lt;build&gt;
      &lt;sourceDirectory&gt;src&lt;/sourceDirectory&gt;
      &lt;testSourceDirectory&gt;src&lt;/testSourceDirectory&gt;
    &lt;/build&gt;
    &lt;dependencies&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;junit&lt;/groupId&gt;
          &lt;artifactId&gt;junit&lt;/artifactId&gt;
          &lt;version&gt;4.8.2&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;bsh&lt;/groupId&gt;
          &lt;artifactId&gt;bsh&lt;/artifactId&gt;
          &lt;version&gt;2.0b4&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;jgrapht&lt;/groupId&gt;
          &lt;artifactId&gt;jgrapht&lt;/artifactId&gt;
          &lt;version&gt;0.6.0&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;jwnl&lt;/groupId&gt;
          &lt;artifactId&gt;jwnl&lt;/artifactId&gt;
          &lt;version&gt;1.3.3&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;trove&lt;/groupId&gt;
          &lt;artifactId&gt;trove&lt;/artifactId&gt;
          &lt;version&gt;2.0.4&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;mtj&lt;/groupId&gt;
          &lt;artifactId&gt;mtj&lt;/artifactId&gt;
          &lt;version&gt;0.9.9&lt;/version&gt;
      &lt;/dependency&gt;
      &lt;dependency&gt;
          &lt;groupId&gt;org.jdom&lt;/groupId&gt;
          &lt;artifactId&gt;jdom&lt;/artifactId&gt;
          &lt;version&gt;1.1&lt;/version&gt;
      &lt;/dependency&gt;
    &lt;/dependencies&gt;
    &lt;repositories&gt;
      &lt;!-- for JWNL --&gt;
      &lt;repository&gt;
        &lt;id&gt;opennlp.sourceforge.net&lt;/id&gt;
        &lt;url&gt;http://opennlp.sourceforge.net/maven2&lt;/url&gt;
      &lt;/repository&gt;
      &lt;!-- for Trove --&gt;
      &lt;repository&gt;
        &lt;id&gt;maven.ontotext.com&lt;/id&gt;
        &lt;url&gt;http://maven.ontotext.com/archiva/repository/public&lt;/url&gt;
      &lt;/repository&gt;
      &lt;!-- for MTJ --&gt;
      &lt;repository&gt;
        &lt;id&gt;repo.scalanlp.org&lt;/id&gt;
        &lt;url&gt;http://repo.scalanlp.org/repo&lt;/url&gt;
      &lt;/repository&gt;
    &lt;/repositories&gt;
  &lt;/project&gt;
  </code></pre>