Prevent Decompilation of jar containing Java 8 code

Question

I am developing my app using Java 8 and I need to prevent my App from Decompilation. As I've done research in Progaurd too , as progaurd is supported until java 7 but am using java8 so anybody suggest any solution to prevent my App from decompiling.

Support for JDK 8 seems to be on the way: http://sourceforge.net/p/proguard/feature-requests/138/ — Carsten, Mar 04 '14 at 10:39
Thank u for ur reply. is there anyother way to prevent this code in java 8 — GowthamIyer, Mar 04 '14 at 10:47
I guess, at the moment decompilers will have trouble with Java 8 code too. — Holger, Mar 04 '14 at 16:08
@Holger Procyon and CFR have handled the new Java 8 constructs for some time now. — Mike Strobel, Mar 05 '14 at 14:23

score -1 · Answer 1 · answered Mar 04 '14 at 16:19

-1

write a custom class loader that will decrypt your class files. that way the file on disk is actually undecompileable (and if you encrypt the whole file, not eve a valid jar). its not fool proof, but a good start.

answered Mar 04 '14 at 16:19

aepurniet

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Just a start... Your method can be easily be bypassed by changing 27 lines of OpenJDK. Take a look on this page : http://java.dzone.com/articles/gun-great-equalizer-openjdk – Emmanuel Dupuy Mar 05 '14 at 16:07
agreed, obfuscation and encryption can only go so far in an IL. – aepurniet Mar 05 '14 at 16:28

Prevent Decompilation of jar containing Java 8 code

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