title: wav audio not playing from a jar file created from intellij
body: <p>This is the piece of the code that I used. I tried to access the file from the folder called sound which is inside my project. I also marked the project as root resource folder. </p>
  
  <p>URL url = this.getClass().getResource("./sound/ac.wav");</p>
  
  <pre><code>File file = new File(url.toURI());
  
  WavFile wavFile = WavFile.openWavFile(file);
  
  AudioInputStream stream1 = AudioSystem.getAudioInputStream(file);
  </code></pre>