```
[ERROR] /Users/headius/projects/jruby/core/src/main/java/org/jruby/runtime/CallSite.java:[36,16] error: class CallSite clashes with package of same name
[ERROR] /Users/headius/projects/jruby/core/src/main/java/org/jruby/Main.java:[82,7] error: class Main clashes with package of same name
```