Checking core structure...
compile_project:10: no matches found: *.in
rm -f poof-core.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 `find . -name \*.java`)
./poof/Manager.java:23: error: ';' expected
     public User getUser
                        ^
./poof/Entity.java:34: error: invalid method declaration; return type required
   public abstract remove(String a);
                   ^
./poof/Entity.java:36: error: invalid method declaration; return type required
   public abstract rename(String c);
                   ^
3 errors
make: *** [all] Error 1