title: Recompile a apk file
body: <p>I was tried to Recompile an app file (apk).</p>
  
  <p>I decompile the apk file with apktool (2.3.1), and dex2jar(2.0), now I have .java file (from the dex2jar), and I don't know how to recompile it,</p>
  
  <p>apktool error:</p>
  
  <pre><code>W: Unknown file type, ignoring: (files).java 
  </code></pre>