title: Eclipse+Maven src/main/java not visible in src folder in Package Explorer
body: <p>I'm wondering why I can't see following folders in src node in Package Explorer</p>
  
  <pre><code>src/main/java
  src/main/resources
  src/test/java
  src/test/resources
  </code></pre>
  
  <p>I can access those folders as direct children of the project and they exist in the file system.</p>
  
  <p>I'm using Spring Tool Suite (STS of Eclipse).</p>
  
  <p>Maybe I can configure Eclipse somehow ?</p>
  
  <hr>
  
  <p><img src="https://i.stack.imgur.com/1RoJs.png" alt="enter image description here">
  <img src="https://i.stack.imgur.com/of1R7.png" alt="enter image description here">
  <img src="https://i.stack.imgur.com/8nZ0l.png" alt="enter image description here"></p>