title: Cannot download sources from jar in intellij with maven
body: <p>I want to debug my maven project. I add a dependency Test that I have developped like this:</p>
  
  <pre><code>&lt;dependencies&gt;
        &lt;dependency&gt;
          &lt;groupId&gt;com.company.group&lt;/groupId&gt;
          &lt;artifactId&gt;test&lt;/artifactId&gt;
          &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
      &lt;/dependency&gt;
  &lt;/dependencies&gt;
  </code></pre>
  
  <p>when I debug my program and I enter into Test dependent method I see /* compiled code */. If I click on attach source It does nothing and if I click on download source, I get a pop up message saying:
  Cannot download sources, 
  Sources not found for:
  com.mycompany.group:test:0.0.1-SNAPSHOT</p>
  
  <p>I also tried to execute : </p>
  
  <pre><code>mvn dependency:sources
  </code></pre>
  
  <p>But when I try to enter my dependent method I just see /* compiled code */
  Do you have any idea?</p>