ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier.
'net.sf.proguard:proguard-base:4.9'
<dependency>
<groupId>net.sf.proguard</groupId>
<artifactId>proguard-base</artifactId>
<version>4.9</version>
</dependency>
<dependency org="net.sf.proguard" name="proguard-base" rev="4.9"/>
"net.sf.proguard", "proguard-base", "4.9"