title: How to deobfuscate jar file using mapping.txt generated by Proguard?
body: <p>This may sound suspicious, but I need to <strong>deobfuscate my own app</strong>. Some time ago I published my app that I obfuscated with Proguard. Unfortunately I did not save that version of the app and changed the code a lot.</p>
  
  <p>Now I need the code of that older version. <strong>I still have mapping.txt</strong> file generated by Proguard.</p>
  
  <p>I have converted the classes.dex file to jar (using dex2jar tool), now I need to deobfuscate it according to mapping.txt. Are there any tools that can help me? Maybe Proguard itself?</p>
  
  <p>UPD. I need a tool that can automatically rename all the classes, functions etc, so I dont have to do it manually. Thank you</p>