ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier.
'net.sf.proguard:proguard-wtk-plugin:5.2'
<dependency>
<groupId>net.sf.proguard</groupId>
<artifactId>proguard-wtk-plugin</artifactId>
<version>5.2</version>
</dependency>
<dependency org="net.sf.proguard" name="proguard-wtk-plugin" rev="5.2"/>
"net.sf.proguard", "proguard-wtk-plugin", "5.2"