Have you tried using after returning advice? That should be able to capture the result of a 'new' call.
On Thu, Jul 30, 2009 at 4:20 AM, Nikolas Nehmer<[email protected]> wrote: > Hi, > > 1st problem solved. There was a little error in the pointcut! Sorry for > that. > > But there still is an open question. Why is the thisJoinPoint.getTarget in > the following example always null? And yes, I double checked...it's not only > the toString() method that delivers null results ;-) > > pointcut init() : call(new()) && !within(TestAspect) && !within(setup..*); > after(): init() { > System.out.println(thisJoinPoint.getTarget()); > } > Cheers, > Nikolas > > Nikolas Nehmer schrieb: >> >> Hi, >> >> I'm wondering if it is possible to monitor every constructor call in my >> application e.g. including calls to java.lang.*. In my understanding, this >> would only imply weaving code into "my" application and not into java system >> libs. >> >> But if I use something like: >> pointcut init() : call(new())...; >> constructor calls within myApp are aspectized but constructor calls to >> system libs are not. I understand that an initialization advice only works >> in myApp but using call-advice should also work for system lib calls? Am I >> wrong? >> >> Best Nikolas >> >> Alex Villazon schrieb: >>> >>> Hi, >>> In fact ajc does not restrict weaving into the class library, but the >>> resulting code may break the VM bootstrapping or crash the VM... >>> >>> For LTW, you could implement your own weaving agent using the >>> WeavingAdaptor, and use >>> >>> >>> bcelWorld.performExtraConfiguration("weaveJavaPackages=true,weaveJavaxPackages=true"); >>> >>> However, this solution does not apply if you need to weave classes loaded >>> during VM bootstrapping.... and before the agent starts instrumentation. >>> >>> Be aware that you could easily have problems of infinite recursions if >>> your advices use woven classes of the Java class library. >>> >>> These problems are discussed in pdf >>> <http://www.inf.unisi.ch/projects/ferrari/Publications_files/pppj08.pdf> >>> >>> Hope that helps. >>> >>> Cheers, >>> >>> Alex >>> >>> >>> On Jul 27, 2009, at 11:58 AM, Nikolas Nehmer wrote: >>> >>>> Even LTW seems to stop at the boundary to the java system libs. How >>>> exactly did you solve that problem? >>>> >>>> cheers Nikolas >>>> >>>> FraGMenT schrieb: >>>>> >>>>> As far as I know you are looking for the Load-Time Weaving. I had more >>>>> or less the same problem and solved it with LTW. I'm afraid you cannot >>>>> weave system libraries at compile time. >>>>> >>>>> Hope this helped you. >>>>> >>>>> 2009/7/22 Nikolas Nehmer <[email protected] >>>>> <mailto:[email protected]> >>>>> <mailto:[email protected]>> >>>>> >>>>> Hi there, >>>>> >>>>> I'm new to AOP and AspectJ in particular. Today I started >>>>> exploring some simple HelloWorld style example aspects. As far as >>>>> I can tell, everything seems to work smoothly. But currently I >>>>> have one issue. Is there any chance of weaving bytecode into the >>>>> java systems libraries (e.g. java.lang.System,…) by “exploiting” >>>>> AspectJ? I’m trying to circumvent writing my own bytecode >>>>> instrumentation component. Any ideas? >>>>> >>>>> Best regards, >>>>> >>>>> Nick >>>>> >>>>> _______________________________________________ >>>>> aspectj-users mailing list >>>>> [email protected] <mailto:[email protected]> >>>>> https://dev.eclipse.org/mailman/listinfo/aspectj-users >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------ >>>>> >>>>> _______________________________________________ >>>>> aspectj-users mailing list >>>>> [email protected] <mailto:[email protected]> >>>>> https://dev.eclipse.org/mailman/listinfo/aspectj-users >>>>> >>>> >>>> >>>> -- >>>> Dipl.-Inf. Nikolas Nehmer, >>>> Dept. of Computer Science. University of Kaiserslautern >>>> P.O. Box 3049, 67653 Kaiserslautern, Germany. >>>> room 36/308, phone: +49 (0) 631 - 205 2644, fax: +49 (0) 631 - 205 3299 >>>> mail: [email protected] <mailto:[email protected]> >>>> >>>> _______________________________________________ >>>> aspectj-users mailing list >>>> [email protected] <mailto:[email protected]> >>>> https://dev.eclipse.org/mailman/listinfo/aspectj-users >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> aspectj-users mailing list >>> [email protected] >>> https://dev.eclipse.org/mailman/listinfo/aspectj-users >>> >> >> > > > -- > Dipl.-Inf. Nikolas Nehmer, > Dept. of Computer Science. University of Kaiserslautern P.O. Box 3049, 67653 > Kaiserslautern, Germany. > room 36/308, phone: +49 (0) 631 - 205 2644, fax: +49 (0) 631 - 205 3299 > mail: [email protected] > > _______________________________________________ > aspectj-users mailing list > [email protected] > https://dev.eclipse.org/mailman/listinfo/aspectj-users > _______________________________________________ aspectj-users mailing list [email protected] https://dev.eclipse.org/mailman/listinfo/aspectj-users
