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POHow to obfuscate Java code quickly?
 

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  1. POHow to obfuscate Java code quickly?
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    <p>How to obfuscate code quickly. I have a very small <b>Java App</b> and I want to deliver the obfuscated code to my client. I have heard a lot about <a href="http://proguard.sourceforge.net/" rel="noreferrer"><b>ProGuard</b></a> to obfuscate code and have downloaded it but doesn't know how to obfuscate my "abc.jar" file.</p> <p>I checked out its website but it contains a lot of material to read. I don't need heavy obfuscation. I just need a obfuscate that simply changes the name of variables, methods and classes to some unreadable ones. I know ProGuard provide all of this with a ton of other functionalities too.</p> <p><b>Q1.</b> So could anyone tell me please some simple obfuscators or some simple steps to use proguard so that I can just input "abc.jar" and it outputs "obfuscate_abc.jar" or something simple like that.</p> <p><b>Q2.</b> One more thing, as my Java program uses external libraries, so should I need to obfuscate those libraries too?</p> <p><b>Q3.</b> Is there any Eclipse or NetBeans plugin availabe to this obfuscation?</p> <p>I have also heard that we should retain the mapping table file with us so that in future we can debug or edit that obfuscated code by first de-obfuscating with the help of that mapping-table which was created at the time of obfuscation.</p> <p><b>Q4.</b> So, one more question is Why do we need to keep that mapping-table with us? We can simply retain a copy of un-obfuscated application so as to make changes in that (if required in future). Is there any reason to retain that mapping-table file with us?</p>
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    1. USYatendra Goel
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    1. CORemember also that if you use reflection and/or loading by name, obfuscation is going to break your program.
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      1. POHow to obfuscate Java code quickly?
      1. USPaul Tomblin
    2. COas Christopher said, there's a manual, we can't (and won't read it for you)
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      1. POHow to obfuscate Java code quickly?
      1. USValentin Rocher
    3. COWhy not take a look at the fine full examples at http://proguard.sourceforge.net/manual/examples.html and then ask a question about anything specific you have trouble with?
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