title: Missing tools.jar when launching STS application
body: <p>I have the latest STS4. I am using installed java-1.8 JDK <strong>not</strong> embedded as the execution environment. My project just runs fine without any issue.</p>
  
  <p>However when I launch the STS application itself I have a pop up saying 
  "Missing tools.jar"</p>
  
  <p><a href="https://i.stack.imgur.com/5v0gE.png" rel="noreferrer"><img src="https://i.stack.imgur.com/5v0gE.png" alt="ScreenShot of the error"></a></p>
  
  <p>I have already tried:</p>
  
  <ol>
  <li>pointing <code>JAVA_HOME</code> to different JDK </li>
  <li>added <code>-vm</code> args in the <code>.ini</code> file.</li>
  </ol>
  
  <p>Yet I cannot get rid of this pop up.</p>