[aspectj-users] Getting IllegalAccessError when using anonymous class

[Claas Wilke <claas.wilke@xxxxxxxxxxxxx>]

Hi,

I'm trying to convert OCL constraints into executable AspectJ code. A 
special problem is caused when transforming the iterator sort(exp) into 
Java code that sorts a collection according to a given expression. I 
transform the expression into a java.util.Comparator which is 
initialized by using an anonymous class (see code below):

package testpackage.constraints;

/**
 * <p>Generated Aspect to enforce OCL constraint.</p>
 *
 * @author OCL22Java of Dresden OCL2 for Eclipse
 * @Generated
 */
public privileged aspect Class1_DefAspect_testSortedByIteratorExp01 {

    /**
     * <p>Defines the method testSortedByIteratorExp01() defined by the 
constraint
     * <code>context Class1
     *       def: testSortedByIteratorExp01() : OrderedSet(Integer) = 
OrderedSet{3, 2, 1}->sortedBy(i: Integer | i)</code></p>
     */
    public java.util.List<Integer> 
testpackage.Class1.testSortedByIteratorExp01( ) {
        java.util.ArrayList<Integer> collection1;
        collection1 = new java.util.ArrayList<Integer>();

        collection1.add(new Integer(3));
        collection1.add(new Integer(2));
        collection1.add(new Integer(1));
        java.util.ArrayList<Integer> result1;
        java.util.Comparator<Integer> comparator1;

        result1 = collection1;

        comparator1 = new java.util.Comparator<Integer>() {

            /** Method which compares two elements of the collection. */
            public int compare(Integer anElement1, Integer anElement2) {
                int result2;

                result2 = 0;

                if (anElement1 < anElement2) {
                    result2 = -1;
                } else if (anElement1 > anElement2) {
                    result2 = 1;
                }

                return result2;
            }
        };

        java.util.Collections.sort(result1, comparator1);

        return result1;
    }
}

Althoug AJDT parses and compiles the code correctly, the initialization 
of the anonymous classes causes a runtime exception:

java.lang.IllegalAccessError: tried to access class testpackage.Class1$1 
from class 
testpackage.constraints.Class1_DefAspect_testSortedByIteratorExp01
    at 
testpackage.constraints.Class1_DefAspect_testSortedByIteratorExp01.ajc$interMethod$testpackage_constraints_Class1_DefAspect_testSortedByIteratorExp01$testpackage_Class1$testSortedByIteratorExp01(Class1_DefAspect_testSortedByIteratorExp01.aj:28)
    at testpackage.Class1.testSortedByIteratorExp01(Class1.java:1)
    at 
testpackage.constraints.Class1_DefAspect_testSortedByIteratorExp01.ajc$interMethodDispatch1$testpackage_constraints_Class1_DefAspect_testSortedByIteratorExp01$testpackage_Class1$testSortedByIteratorExp01(Class1_DefAspect_testSortedByIteratorExp01.aj)
    ...

My questions are:
- Are anonyomous classes allowed within AspectJ aspects at all?
- Is there any way to get a workaround for such a problem?

Cheers and thanks,
Claas Wilke