Problem is the library in Maven Central is built for Java 1.7 so spits out warnings like this on Java 1.6:
```
warning: com/github/abrarsyed/jastyle/AbstractASBase.class(com/github/abrarsyed/jastyle:AbstractASBase.class): major version 51 is newer than 50, the highest major version supported by this compiler.
It is recommended that the compiler be upgraded.
```