title: Android /system/framework/*.jar files
body: <p>I did <code>ls -al /system/framework/</code> on my Android 5.0.1 phone via <code>adb shell</code></p>
  
  <p>I noticed about 95% of the <code>.jar</code> files there were 309 bytes. After pulling one such file using <code>adb pull</code> and unzipping them showed the <code>.jar</code> file only contained <code>/META-INF/MANIFEST.MF</code> </p>
  
  <p>Where is the actual <code>dex</code> code of these <code>jar</code> files. ?</p>
  
  <p>P.S. My phone is not rooted. </p>