Run java apps which requires a .jad file to open

Now i'm telling you how to run .jar apps which requires .jad file to run and without jad file that shows 'null pointer exception' or 'static initialize error'.

Tools needed:
BlueFTP  (to open or create zip files)
Moby explorer  (to open files as text)

Tutorial:
1. Use uc browser to download your app.(ex. Mygame_jar and mygame_jad)
2. Open blueftp and locate mygame_jar and rename it to mygame.zip
3. Extract all files from mygame.zip to an empty folder
4. Close blueftp and open moby explorer. Locate your mygame_jad and open it by double clicking on it.
5. Now main work starts here. Find and delete these 4-5 line from jad file. These lines are:
MIDlet-jar-size: (ex. 2578)
MIDlet-jar-URL: (ex. http://store.ovi.mobi.....)
MIDlet-jar-rsa-sha1: (ex. Mpnpmpagmp..)
and delete all certificates
MIDlet-Certificate-1-1: (ex. MIIDpmpapmp..)
6. After editing, save it as manifest.mf and replace that file with previously extracted manifest.mf file in the Meta-inf folder.
7. After ensuring that file is successfully replaced, Again open blueftp and locate to new folder where all files are previously extacted.
8. Select all files by pressing * or # keys.
9. After selecting all files, press menu>compress items jar and press Ok. It will create a new File_jar.
10. Now you have successfully created your jar file. You can test that app and it runs without jad file.

Any problem, feel free to reply.