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I made a j2me code and extracted the jar file ..... jar file will be downloaded online and I need to insert data generated automatically for every download which I can deal with it from J2me code .

Thanks in advance.

  • What for you need it? I know answer for your question, but I know what for such things being used also. – OZ_ Jun 18 '11 at 22:19

1 Answers1

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You just have to create the new jar file the same way you would create a zip file (ex. Here )

If your jar archive is signed, beware that code signing verification fails if content is modified.

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