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Thread: Cooool a Java Decompiler

  1. Jun 19th, 2002, 02:20 AM #1
    308holes
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    Post Cooool a Java Decompiler

    I found a cool Java Decompiler so i can decompile any .class file only problem is i have to buy it befor i can save or copy the dang code lol

    P.S its called Decafe Pro
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  2. Jun 19th, 2002, 11:33 AM #2
    Dillinger4
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    Just curious. Have you ever tried the Java Disassembler that comes with the development kit? javap
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  3. Jun 19th, 2002, 12:13 PM #3
    DaoK
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    I found a cool Java Decompiler so i can decompile any .class file only problem is i have to buy it befor i can save or copy the dang code lol
    You are a little late dude. I got one like 4 month ago... just go to download.com and do a search and you will have like 5 programs who can do that...
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  4. Jun 19th, 2002, 12:31 PM #4
    [Digital-X-Treme]
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    Originally posted by DaoK

    You are a little late dude. I got one like 4 month ago...
    Java de-compilers have been around for ages. Java class files can be protected from de-compilation by running them through an obfuscator program, such as Crema. See this link for more information: http://www.brouhaha.com/~eric/computers/mocha.html
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  6. Jun 19th, 2002, 01:06 PM #5
    Dillinger4
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    [Digital-X-Treme] is right. Java de-compilers have been around for years. Some one posted a big lengthy thread about obfuscator programs such as Crema, which [Digital-X-Treme] is refering to. I think it was CudaBean but if you do a search you will find it.
    Java CodeBank Entries >>

    Parsing URL's    | Collections/ShuffleElements |
    Threads isAlive()     | Daemon Threads |Remote Class Loading | Sorted Keys (Map) | Backwards List | Thread States | Collections/Arrays Generics | Regular Expression(Grouping and Capturing) | Properties | JLabel/JTextField Combo | Reading Request Parameter Values | Host Lookup | Setting the size of a JFrames inner-region | GUI Native L&F


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  7. Jun 19th, 2002, 02:45 PM #6
    DaoK
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    What I found funny is that teacher at school tell us that Java is a secure language...
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  8. Jun 19th, 2002, 02:54 PM #7
    Dillinger4
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    Daok.... I think what your teacher is refering to is security in the context of networking and servers. Not decompilation of compiled files.
    Java CodeBank Entries >>

    Parsing URL's    | Collections/ShuffleElements |
    Threads isAlive()     | Daemon Threads |Remote Class Loading | Sorted Keys (Map) | Backwards List | Thread States | Collections/Arrays Generics | Regular Expression(Grouping and Capturing) | Properties | JLabel/JTextField Combo | Reading Request Parameter Values | Host Lookup | Setting the size of a JFrames inner-region | GUI Native L&F


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  9. Jun 19th, 2002, 04:42 PM #8
    DaoK
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    well, if you see the source you can do what you want...
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  11. Jun 22nd, 2002, 09:36 AM #9
    parksie
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    But that doesn't help you in a secure environment, because the checksum on the class will be different if you've changed it.

    Oh, and security through obscurity is no security at all
    I refuse to tie my hands behind my back and hear somebody say "Bend Over, Boy, Because You Have It Coming To You".
    -- Linus Torvalds
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