title: Maven Shade - add local JAR file
body: <p>I have a project managed by maven and few JARs in local lib directory. </p>
  
  <pre><code> &lt;dependency&gt;
       &lt;groupId&gt;opencv&lt;/groupId&gt;
       &lt;artifactId&gt;org.opencv&lt;/artifactId&gt;
       &lt;version&gt;1.0&lt;/version&gt;
       &lt;scope&gt;system&lt;/scope&gt;
       &lt;systemPath&gt;${project.basedir}/lib/opencv-249.jar&lt;/systemPath&gt;         
   &lt;/dependency&gt;
  </code></pre>
  
  <p>I need this jar will be included in resulting jar-with-dependencies file. </p>
  
  <pre><code>&lt;plugin&gt;
          &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
          &lt;artifactId&gt;maven-shade-plugin&lt;/artifactId&gt;
          &lt;version&gt;2.4.3&lt;/version&gt;
          &lt;executions&gt;
            &lt;execution&gt;
              &lt;phase&gt;package&lt;/phase&gt;
              &lt;goals&gt;
                &lt;goal&gt;shade&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
              &lt;/configuration&gt;
            &lt;/execution&gt;
          &lt;/executions&gt;
        &lt;/plugin&gt;
  </code></pre>
  
  <p>Unfortunately maven seems to <strong>omit this dependency</strong> and is missing in the resulting file.</p>