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Java class file shrinker, optimizer, obfuscator, and preverifier
...It optimizes bytecode and removes unused instructions. It renames the remaining classes, fields, and methods using short meaningless names.
ProGuard is useful for making code more compact and more efficient, on the desktop, on tablets, on smartphones, and on embedded devices. It also makes code more difficult to reverse engineer.
...For example, any if or switch conditional with an unknown value results in both branches being taken. Analyzes the execution graphs from smalivm and applies optimizations such as constant propagation, dead code removal, unreflection, and some peephole optimizations. These are fairly simple, but when applied together repeatedly, they'll decrypt strings, remove reflection, and greatly simplify code. It does not rename methods and classes.
A maven plugin for obfuscating java code via ProGuard
This plugin allows you to obfuscate maven artifacts using the ProGuard open source obfuscator, which is a very powerful and well established Java obfuscator. ProGuard can also be found on SourceForge at http://proguard.sourceforge.net/.
This plugin can be used from your POM as follows:
<groupId>com.idfconnect.devtools</groupId>
<artifactId>idfc-proguard-maven-plugin</artifactId>
<version>1.0.1</version>
Apache Maven, Maven, Apache, the Apache feather logo, and the Apache Maven...
An API and a graphical tool for inspection (viewing, searching and comparing) and manipulation (modification, obfuscation, refactoring of methods, fields, attributes and code) of classfiles for the Java platform.
JavaGuard is a general purpose bytecode obfuscator, designed to fit effortlessly into your regular build and testing process, providing peace of mind that your valuable Java code is more secure against decompilation and other forms of reverse engineering