现在企业中用java作为开发语言的越来越多，但是代码的安全问题也很严重，对java的代码保护最常用的策略是对代码进行混淆编译，有很多工具可以供大家选择。
Author/Company
Program
Shrinking
Obfuscation
License
Eric Lafortune
ProGuard
Free (GPL)
Jochen Hoenicke
Jode
Free (GPL)
Hidetoshi Ohuchi
Jarg
Free (BSD)
NQ4
Joga
Free (no source)
Alexander Shvets
CafeBabe
Free
Nate Nystrom
Bloat
Free
RiggsHill Software
GenJar
Free (Apache)
RetroLogic
RetroGuard
Free (LGPL)
Thorsten Heit
JavaGuard
Free (LGPL)
Patrick Mueller
Mwobfu
Free (GPL)
Bajie
JCMP
Free
yWorks
yGuard
Free
Dr. Java
Marvin Obfuscator
Free (no source)
IBM AlphaWorks
JAX
Commercial
PreEmptive
DashOPro
Commercial
Zelix
KlassMaster
Commercial
S5 Systems
jPresto
Commercial
CodingArt
CodeShield
Commercial
Plumb Design
Condensity
Commercial
Eastridge Technology
Jshrink
Commercial
Helseth
JObfuscator
Commercial
LeeSoftware
Smokescreen Obfuscator
Commercial
Vega Technologies
JZipper
Commercial
Sergey Sverdlov
J.Class Optimizer
Commercial
Force 5
JCloak
Commercial
WingSoft
WingGuard
Commercial
JAMM Consulting
ObfuscatePro
Commercial
2LKit
2LKit Obfuscator
Commercial
Duckware
Jobfuscate
Commercial
JProof
JProof
Commercial
4Fang
JMix
Commercial
GITS
Blurfuscator
Commercial
JDevelop
JSCO
Commercial
Alain Moran
flmObf
Free (BSD)
Vasile Calmatui
VasObfuLite
Free
Markus Jansen
Jopt
(disappeared?)
Eron Jokipii
Jobe
(disappeared?)
JRC
DeCaf
(disappeared?)
4th Pass
SourceGuard
Commercial (discontinued?)
HashJava
HashJava
Commercial (disappeared?)
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