RULE traceMethodCalls CLASS MyClass METHOD .* AT ENTRY IF TRUE DO trace("Method called: " + $0); ENDRULE RULE handleNullPointerException CLASS MyLibraryClass METHOD .* AT THROW IF $e instanceof NullPointerException DO handleException($e); ENDRULE RULE logMethodExecution CLASS MyLibraryClass METHOD .* AT ENTRY IF TRUE DO log("Executing method: " + $0); ENDRULE