RE: [aspectj-users] Incremental build failure: the parameter is not boun

[Jonathan Brown <jonathan_w_brown@xxxxxxxxxxx>]

Done:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=286341

Thanks.

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Date: Tue, 11 Aug 2009 14:12:50 -0700
Subject: Re: [aspectj-users] Incremental build failure: the parameter is not bound in [all branches of] pointcut‏
From: andrew.clement@xxxxxxxxx
To: aspectj-users@xxxxxxxxxxx

Hi Jonathan,

Definetly a bug, and I think you are right that it is the combination of target(b) and incremental. if you raise a bug I'll take a look: https://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ

Workarounds for now - well you could try it in code style rather than annotation style, but I suspect that won't fix it in this case.

You could avoid binding target and instead access it through the ProceedingJoinPoint via getTarget().

@Pointcut("if() && call(public * somepackage.Behavior.*(..)) && target(Behavior)")
public static boolean adviseIfMonitoring() {

public Object monitorBehaviorPerformance(ProceedingJoinPoint pjp) throws Throwable {
   Behavior b = pjp.getTarget();
    return pjp.proceed();

incremental comp may be more forgiving on that setup.


Andy

2009/8/10 Jonathan Brown <jonathan_w_brown@xxxxxxxxxxx>

Apologies in advance; I'm sure there is a more concise problem description but I'll let the expert eyes figure that one out.

I'm using Eclipse 3.5 and AJDT 2.0.1.e35x-20090717-0900 / aspectj 1.6.5.20090618034232

Project organization is as follows:
Bundle A contains a bunch of interfaces
  - In this case that would be 'somepackage.Behavior'
Bundle B contains my aspect and references the interfaces exported by Bundle A
  - See details below
Bundle C contains a class the code the pointcut matches

Here is an approximation of my pointcut:
@Pointcut("if() && call(public * somepackage.Behavior.*(..)) && target(b)")
public static boolean adviseIfMonitoring(Behavior b) {
    return true;
}

Ditto the advice:
@Around("adviseIfMonitoring(b)")
public Object monitorBehaviorPerformance(ProceedingJoinPoint pjp, Behavior b) throws Throwable {
    return pjp.proceed();
}

Bundles C has an ajnature added and has Bundle B [project] added to its aspectpath.

Following a clean build everything seems fine.  The compiled code has the aspect woven and the IDE highlights the application of the advice at the correct joinpoints in Bundle C.

However, if I make any change to a class in Bundle C, specifically the class for which the advice is applied to, I get a compilation error from the aspect in Bundle B: "the parameter pjp is not bound in [all branches of] pointcut."

If I clean Bundle B the problem is resolved and everything works again.

The problem *appears* to be related to the use of the target(b) portion of the pointcut in conjunction with incremental compilation.

Any suggestions other than 'Don't do that'?

Thanks in advance,
Jonathan

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