Import directive (3: 15) import server.foo
Receiver (8: 35) println("length: ${server.foo.length()}")
Selector (7: 33) println("foo = ${server.foo}")
Unclassified usage (7: 53) System.out.println("foo = " + ServerPackage.getFoo());
Unclassified usage (8: 55) System.out.println("length: " + ServerPackage.getFoo().length());
Unclassified usage (9: 23) ServerPackage.setFoo("");
