| RE: [aspectj-users] null thisJoinPointStaticPart when advising constructor execution |
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The
application under test is Log4J. The
constructor in question is: protected Level(int level, String levelStr, int syslogEquivalent) {
super(level, levelStr, syslogEquivalent); } Super: protected Priority(int level, String levelStr, int syslogEquivalent) {/*just assignments
here…*/} The stack
goes: TestRanking.ajc$before$testrank_TestRanking$6$69466523(JoinPoint$StaticPart,
JoinPoint) line: 160 Level.<init>(int,
String, int) line: 104 Priority.<clinit>()
line: 45 LogManager.<clinit>()
line: 80 Logger.getRootLogger_aroundBody4(JoinPoint)
line: 136 Logger.getRootLogger_aroundBody5$advice(JoinPoint,
TestRanking, AroundClosure, JoinPoint$StaticPart) line: 183 Logger.getRootLogger()
line: 136 LoggingEventTest.getRootLogger_aroundBody0(LoggingEventTest,
JoinPoint) line: 53 LoggingEventTest.getRootLogger_aroundBody1$advice(LoggingEventTest,
JoinPoint, TestRanking, AroundClosure, JoinPoint) line: 108 LoggingEventTest.testSerializationSimple()
line: 53 … There
seems to me there is some confusion in the stack: public
void testSerializationSimple() throws Exception { Logger root = Logger.getRootLogger();
// LoggingEventTest.testSerializationSimple() line: 53 à public void testSerializationNDC() throws Exception { Logger root = Logger.getRootLogger(); // LoggingEventTest.getRootLogger_aroundBody1$advice(LoggingEventTest,
JoinPoint, TestRanking, AroundClosure, JoinPoint) line: 108 I do have
some around() advices but I never reach them in the debugger before the
before() J How can
it be that the stack flows from the execution of one method (line 53) directly
to the execution of a different method that was never called from the first
method (line 108)? Hagai -----Original
Message----- Can you
tell me what kind of constructors lead to that being null? A simple (complete)
program that fails would be great. This program: --- aspect
Test
{ public static void main(String []argv) { new C(); } pointcut methodUnderTestExecution1() : (execution(*
*(..)) || execution(new(..))) && !within(Test); before(): methodUnderTestExecution1() { Object sig = thisJoinPointStaticPart.getSignature(); System.out.println(sig); } } class C { } --- works
fine and prints C(). cheers Andy On 18 March
2010 13:09, Hagai Cibulski <hagaic@xxxxxxxxx> wrote: > Hi All! > > Could use some help here… > > > > I'm tracing methods execution stemming from JUnit tests
using AspectJ, using > the following pointcut: > > pointcut
methodUnderTestExecution() : > >
execution(* *(..)) > >
&& mutFilter(); > > > > before(): methodUnderTestExecution() { > >
Signature sig = thisJoinPointStaticPart.getSignature(); > >
… > > So far, that works fine! > > > > However, when trying to add constructor execution to the
pointcut, I get > some unexpected behaviors: > > > > pointcut
methodUnderTestExecution1() : > >
(execution(* *(..)) || execution(new(..))) > >
&& mutFilter(); > > > > before(): methodUnderTestExecution1() { > >
Signature sig = thisJoinPointStaticPart.getSignature(); > >
// thisJoinPointStaticPart == null L > >
… > > > > For some constructors in the application under test the
advice causes > NullPointerException because thisJoinPointStaticPart == null > > > > Anyone? > > > > > > Thanks, > > Hagai > > _______________________________________________ > aspectj-users mailing list > aspectj-users@xxxxxxxxxxx > https://dev.eclipse.org/mailman/listinfo/aspectj-users > > _______________________________________________ aspectj-users
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