class WarningSample { public void method() {} public void anotherMethod() { this.method(); } } aspect WarningAspect { pointcut illegalCall(): call(* WarningSample.method()) && within(WarningSample); // the same thing happens with declare error declare warning: illegalCall() : "Hey, don't " + "do that, that is not nice. You should do something else"; public void e1() {} declare warning: execution(* e1(..)): "hello " + /* comment */ "world"; public void e2() {} declare warning: execution(* e2(..)): "hello " /* comment */ + "world"; public void e3() {} declare warning: execution(* e3(..)): "hello " + // commenthere // comment here too "world"; public void e4() {} declare warning: execution(* e4()): "hello " //xxx + "world"; public void e5() {} declare warning: execution(* e5()): "hello " //xxx /* here */ + "world"; public void e6() {} declare warning: execution(* e6()): "abc" + "def" + // def was here "ghijklmnopqrstuv" /* silly place for a comment */ + /* oops */ "wxyz"; }