Description Lasse R. Nielsen 2004-07-20 06:22:52 EDT

(Example classes below)

When calling with a null argument for the array parameter the *first* time it is 
called, the "thisStaticJoinPoint" signature reports "ClassNotFoundException" as 
the type of that parameter, also for the next call where the argument is not 
null.
 
However, if I *switch* the calls, so the first call is with a non-null argument, 
then the static join point correctly reports the array type, also for the next 
call.
 
Tested with both AspectJ 1.1 and 1.2 from command line and AJDT 1.1.11 from 
Eclipse 3.  
 
It seems to be a bug in the runtime classes (no Component for that?)

Example classes:
--- Main.java ---
package dk.infimum.aspectjtest;
public class Main {
 
    public static void main(String[] args) {
      Main obj = new Main();
      // swap following lines to change behavior
      obj.test(null, null);
      obj.test(null, new Main[]{});
    }
 
    void test(Main dummy, Main[] dummy2) {}
 
}
--- end Main.java ---
 
and
 
--- MainAspect.aj ---
import org.aspectj.lang.reflect.MethodSignature;
 
public aspect MainAspect {
 
    pointcut testcall(): execution(* test*(..));
 
    before(): testcall() {
      MethodSignature sig = 
        (MethodSignature) thisJoinPointStaticPart.getSignature();
      System.out.println(sig);
      Class[] params = sig.getParameterTypes();
      for(int i=0;i<params.length;i++) {
        Class cls = params[i];
        System.out.println(" - " + cls.getName());
      }
    }
}
--- end MainAspect.aj ---
 
The output from running Main is:
 
---
void dk.infimum.aspectjtest.Main.test(Main, ClassNotFoundException)
 - dk.infimum.aspectjtest.Main
 - java.lang.ClassNotFoundException
void dk.infimum.aspectjtest.Main.test(Main, ClassNotFoundException)
 - dk.infimum.aspectjtest.Main
 - java.lang.ClassNotFoundException
---
 
However, if I swap the calls to test, the output becomes:
 
---
void dk.infimum.aspectjtest.Main.test(Main, Main[])
 - dk.infimum.aspectjtest.Main
 - [Ldk.infimum.aspectjtest.Main;
void dk.infimum.aspectjtest.Main.test(Main, Main[])
 - dk.infimum.aspectjtest.Main
 - [Ldk.infimum.aspectjtest.Main;
---