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I declare a Java bean like this. package com.blueprint.util.mixin.test; import java.io.Serializable; public class Bean implements Serializable{ private String name; public String getName() { return name; } public void setName( String name ) { this.name = name; } } My aspect has a pointcut like this. pointcut callSetter( Bean b ) : call( @propertyChanger * *(..) ) && target( b ); I am using the full compilation feature. So whenever it compiles I see a popup that shows -------------------------------------------------- NullPointerException thrown:null Reason NullPointerException thrown:null -------------------------------------------------- The trace is !ENTRY org.eclipse.ajdt.ui 4 0 2005-08-29 12:51:26.445 !MESSAGE NullPointerException thrown: null !STACK 0 java.lang.NullPointerException at org.aspectj.weaver.patterns.WildAnnotationTypePattern.matches (WildAnnotationTypePattern.java:61) at org.aspectj.weaver.patterns.SignaturePattern.matchesAnnotations (SignaturePattern.java:326) at org.aspectj.weaver.patterns.SignaturePattern.matchesExactly (SignaturePattern.java:179) at org.aspectj.weaver.patterns.SignaturePattern.matches (SignaturePattern.java:152) at org.aspectj.weaver.patterns.KindedPointcut.matchInternal (KindedPointcut.java:111) at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:151) at org.aspectj.weaver.patterns.AndPointcut.matchInternal (AndPointcut.java:61) at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:151) at org.aspectj.weaver.patterns.AndPointcut.matchInternal (AndPointcut.java:61) at org.aspectj.weaver.patterns.Pointcut.match(Pointcut.java:151) at org.aspectj.weaver.ShadowMunger.match(ShadowMunger.java:62) at org.aspectj.weaver.Advice.match(Advice.java:101) at org.aspectj.weaver.bcel.BcelClassWeaver.match (BcelClassWeaver.java:1724) at org.aspectj.weaver.bcel.BcelClassWeaver.matchInvokeInstruction (BcelClassWeaver.java:1713) at org.aspectj.weaver.bcel.BcelClassWeaver.match (BcelClassWeaver.java:1526) at org.aspectj.weaver.bcel.BcelClassWeaver.match (BcelClassWeaver.java:1355) at org.aspectj.weaver.bcel.BcelClassWeaver.weave (BcelClassWeaver.java:381) at org.aspectj.weaver.bcel.BcelClassWeaver.weave (BcelClassWeaver.java:96) at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1368) at org.aspectj.weaver.bcel.BcelWeaver.weaveWithoutDump (BcelWeaver.java:1333) at org.aspectj.weaver.bcel.BcelWeaver.weaveAndNotify (BcelWeaver.java:1110) at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:997) at org.aspectj.ajdt.internal.compiler.AjCompilerAdapter.weave (AjCompilerAdapter.java:286) at org.aspectj.ajdt.internal.compiler.AjCompilerAdapter.afterCompiling (AjCompilerAdapter.java:165) at org.aspectj.ajdt.internal.compiler.CompilerAdapter.ajc$afterReturning$org_aspec tj_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:728) at org.aspectj.ajdt.internal.core.builder.AjBuildManager.doBuild (AjBuildManager.java:206) at org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild (AjBuildManager.java:140) at org.aspectj.ajde.internal.CompilerAdapter.compile (CompilerAdapter.java:121) at org.aspectj.ajde.internal.AspectJBuildManager$CompilerThread.run (AspectJBuildManager.java:191) In another package I have the following files. package com.blueprint.util.aspectj5.test; import java.io.Serializable; @javaBean() public class Bean implements Serializable{ private String name; public String getName() { return name; } @propertyChanger() public void setName( String name ) { this.name = name; } } My annotation is package com.blueprint.util.aspectj5.test; import java.lang.annotation.*; import java.lang.*; @Retention( RetentionPolicy.RUNTIME ) @Target({ ElementType.METHOD }) public @interface propertyChanger { }
Clarification. The first bean and the aspect with the pointcut shown are both in the same package. The second bean and the annotation are in a different package.
Passing over to the compiler
There's definitely a bug lurking here, but I couldn't reproduce it yet from the information provided so far. The pointcut you've given in the snippet should compile to a pointcut with an *ExactAnnotationTypePattern* (which it does for me), but in your stack trace you have a *WildAnnotationTypePattern*. I tried a variant in which the propertyChanger annotation was not visible to the aspect, but this just gave the expected type not found message. Could you please attach the full source of your aspect if possible? Also, do you have any other pointcuts or advice in your application that are working with annotations? Is it possible one of these is the culprit? If you could attach a self-contained zip with all files needed to reproduce that would be absolutely fantastic, otherwise we can continue the detective work as is.... Thanks, Adrian.
I tried to repeat this but somehow my original configuration is lost. Actually when I moved everything to the same package I didn't see this bug.
cant reproduce on our side - but given all the compiler changes, it might have been resolved. Please reopen if it happens again.
