[aspectj-dev] UnsupportedOperationException thrown: unable to parameteri

[Adam Smyczek <adamsmyczek@xxxxxxxxx>]

Hi all,

I am getting:

java.lang.UnsupportedOperationException
at org.aspectj.weaver.UnresolvedType.parameterize(UnresolvedType.java: 
220)
at org.aspectj.weaver.patterns.ExactTypePattern.parameterizeWith 
(ExactTypePattern.java:244)
at org.aspectj.weaver.patterns.SignaturePattern.parameterizeWith 
(SignaturePattern.java:265)
at org.aspectj.weaver.patterns.KindedPointcut.parameterizeWith 
(KindedPointcut.java:381)
at org.aspectj.weaver.bcel.BcelAdvice.parameterizeWith 
(BcelAdvice.java:93)
at org.aspectj.weaver.ResolvedType.getDeclaredAdvice 
(ResolvedType.java:710)
at org.aspectj.weaver.ResolvedType.getDeclaredShadowMungers 
(ResolvedType.java:739)
at org.aspectj.weaver.ResolvedType.collectShadowMungers 
(ResolvedType.java:575)
at org.aspectj.weaver.ResolvedType.collectCrosscuttingMembers 
(ResolvedType.java:504)
at org.aspectj.weaver.CrosscuttingMembersSet.addOrReplaceAspect 
(CrosscuttingMembersSet.java:68)
at org.aspectj.weaver.CrosscuttingMembersSet.addOrReplaceAspect 
(CrosscuttingMembersSet.java:57)
at org.aspectj.weaver.bcel.BcelWeaver.prepareForWeave(BcelWeaver.java: 
450)
at org.aspectj.ajdt.internal.compiler.AjCompilerAdapter.weave 
(AjCompilerAdapter.java:299)
at org.aspectj.ajdt.internal.compiler.AjCompilerAdapter.afterCompiling 
(AjCompilerAdapter.java:192)
at org.aspectj.ajdt.internal.compiler.CompilerAdapter.ajc 
$afterReturning$org_aspectj_ajdt_internal_compiler_CompilerAdapter$2 
$f9cc9ca0(CompilerAdapter.aj:70)
at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile 
(Compiler.java:367)
at  
org.aspectj.ajdt.internal.core.builder.AjBuildManager.performCompilation 
(AjBuildManager.java:887)
at org.aspectj.ajdt.internal.core.builder.AjBuildManager.doBuild 
(AjBuildManager.java:244)
at org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild 
(AjBuildManager.java:163)
at org.aspectj.ajde.internal.CompilerAdapter.compile 
(CompilerAdapter.java:122)
at org.aspectj.ajde.internal.AspectJBuildManager$CompilerThread.run 
(AspectJBuildManager.java:191)

UnsupportedOperationException thrown: unable to parameterize  
unresolved type: Pjava/util/List<+Ljava/lang/Object;>;

To reproduce this, please compile the following code:

import java.util.ArrayList;
import java.util.List;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;

public class Main {

	public List<? extends Element> getElements() {
		return new ArrayList<Element>();
	}
	
	class Element {};
	
	@Aspect
	static abstract class Base<T> {
		@Around("call(List<? extends T> *.*(..))")
		public List<? extends T> elementList(ProceedingJoinPoint  
thisJoinPoint) {
			try {
				return (List<? extends T>)thisJoinPoint.proceed();
			} catch (Throwable e) {
				throw new RuntimeException(e);
			}
		}
	}

	@Aspect
	static class Concrete extends Base<Element> {}

	public static void main(String[] args) {
		new Main().getElements();
	}
	
}

Is something wrong with my generic type declaration or is this a bug?

Thanks,
Adam