Re: [ajdt-dev] AspectJ 1.6.4 bug on getParameterNames

[Simone Gianni <simoneg@xxxxxxxxxx>]

Hi Andy,
I tried to reproduce it in a simple test case but yet no success.

Just to give a bit more pointers :
- We're running in LTW, not tested if it happens in build time weaving
- Everything is compiled with 1.6.3, we were just running it with 1.6.4 LTW
- Classes and aspects are compiled using -XterminateAfterCompilation to 
avoid LTW reweaving errors after other bytecode manipulators (like JPA 
or Cobertura ones)
- The method on which the wrong parameter names are reported is called 
using reflection (but the pointcut is execution(), so should not give 
problems)
- The method on which the wrong parameter names are reported is an ITD 
method
- It happens always, also on different machines, with 1.6.4, while with 
1.6.3 everything works always smoothly

I tried to reproduce all this in a simple test program, with a method 
having an argument calling (using reflection) a no-arg method and a ITD 
no-arg method, compiling with 1.6.3 -XterminateAfterCompilation and 
running it using the agent and the "aj" command, but still cannot 
reproduce the problem.

Tomorrow I'll try debugging Factory.makeMethodSig to see when it is 
called with param names but no param types, unfortunately debugging in 
such a large system will take up a lot of time, a small test case would 
have been m,uch much better :(

Simone

Andy Clement wrote:
> No idea, please open a bug.
>
> Andy
>
> 2009/5/11 Simone Gianni <simoneg@xxxxxxxxxx>:
>   
> > Hi all,
> > since we have 1.6.4 in maven, we switched to it. Unfortunately however it
> > seems like if there is a bug on 1.6.4 regarding getParameterNames on a
> > method signature.
> >
> > In fact, under 1.6.3, a method sigature with zero parameters returned a zero
> > length array on both getParameterNames and getParameterTypes and a zero
> > length array on getArgs on the corresponding joinpoint instance. On 1.6.4
> > getParameterNames returns an array of length 1 (in my case, containing
> > "arg0"), while all the others still return a zero length array.
> >
> > I suppose this is a bug, if none of you have a clear idea of why this
> > happens I can try build a simple testcase.
> >
> > Simone
> >
> > --
> > Simone Gianni            CEO Semeru s.r.l.           Apache Committer
> > http://www.simonegianni.it/
> >
> > _______________________________________________
> > ajdt-dev mailing list
> > ajdt-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/ajdt-dev
> >
> >     
> _______________________________________________
> ajdt-dev mailing list
> ajdt-dev@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/ajdt-dev
>   


--
Simone Gianni            CEO Semeru s.r.l.           Apache Committer
http://www.simonegianni.it/