An NPE from the compiler indicates a bug, not that you are doing something wrong (want to raise a bugzilla? https://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ ). But you may be able to work around the problem.
> It seems ok to me but when I try to compile it I receive the error below > (aspectj 1.6.10, aspectjweaver 1.6.1). Not quite sure what you mean here, are you really combining AspectJ 1.6.10 and a 1.6.1 weaver? I would recommend trying with everything at 1.6.11 in case the issue has already been fixed (1.6.11 included a few generics related fixes for Spring Data). You could also try writing your aspect in code style rather than annotation style - but this would just be a possible workaround, basically you've hit a compiler issue and it needs fixing. cheers Andy. On 29 June 2011 18:19, Andre Dantas Rocha <[email protected]> wrote: > Hi all, > > I've been struggling to create a very simple interceptor aspect using > generics and abstract pointcuts. The code is below: > > // A simple class using generics > public abstract class AbstractAdapter<T extends Serializable> { > protected abstract T execute(T message); > } > > // The concrete class to be intercepted > public class Adapter extends AbstractAdapter<String> { > @Override > public String execute(String message) { > return message; > } > } > > // The abstract aspect using generics > @Aspect > public abstract class AbstractProbingAspect<T> { > @Pointcut("") > protected abstract void adapterMethodExecution(); > > @Around("adapterMethodExecution()") > public Object around(ProceedingJoinPoint thisJoinPoint) throws Throwable > { > return thisJoinPoint.proceed(); > } > > protected abstract String extractFunctionName(T command); > } > > // The concrete aspect > @Aspect > public class ProbingAspect extends AbstractProbingAspect<String> { > @Pointcut("execution(String test.aop.Adapter.execute(String))") > protected void adapterMethodExecution() {}; > > @Override > protected String extractFunctionName(String command) { > return String.valueOf(command); > } > } > > It seems ok to me but when I try to compile it I receive the error below > (aspectj 1.6.10, aspectjweaver 1.6.1). Any ideas about what I'm doing wrong? > > Thanks in advance, > > Andre > > [INFO] --- aspectj-maven-plugin:1.3.1:compile (default) @ test-aop --- > [ERROR] Internal compiler error > java.lang.NullPointerException > at > org.aspectj.weaver.ResolvedPointcutDefinition.parameterizedWith(ResolvedPointcutDefinition.java:121) > at > org.aspectj.weaver.ReferenceType.getDeclaredPointcuts(ReferenceType.java:783) > at > org.aspectj.weaver.ResolvedType.getExposedPointcuts(ResolvedType.java:2317) > at > org.aspectj.weaver.ResolvedType.getExposedPointcuts(ResolvedType.java:2310) > at > org.aspectj.ajdt.internal.compiler.lookup.EclipseSourceType.checkPointcutDeclarations(EclipseSourceType.java:462) > at > org.aspectj.ajdt.internal.compiler.lookup.AjLookupEnvironment.resolvePointcutDeclarations(AjLookupEnvironment.java:489) > at > org.aspectj.ajdt.internal.compiler.lookup.AjLookupEnvironment.completeTypeBindings(AjLookupEnvironment.java:279) > at > org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:616) > at > org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:357) > at > org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:371) > at > org.aspectj.ajdt.internal.core.builder.AjBuildManager.performCompilation(AjBuildManager.java:1021) > at > org.aspectj.ajdt.internal.core.builder.AjBuildManager.performBuild(AjBuildManager.java:268) > at > org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild(AjBuildManager.java:181) > at org.aspectj.ajdt.ajc.AjdtCommand.doCommand(AjdtCommand.java:112) > at org.aspectj.ajdt.ajc.AjdtCommand.runCommand(AjdtCommand.java:60) > at org.aspectj.tools.ajc.Main.run(Main.java:371) > at org.aspectj.tools.ajc.Main.runMain(Main.java:248) > at > org.codehaus.mojo.aspectj.AbstractAjcCompiler.execute(AbstractAjcCompiler.java:370) > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) > at > org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) > at > org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) > at > org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) > at > org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) > at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319) > at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) > at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) > at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) > at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:592) > at > org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) > at > org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) > at > org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) > at > org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) > > > _______________________________________________ > aspectj-users mailing list > [email protected] > https://dev.eclipse.org/mailman/listinfo/aspectj-users > > _______________________________________________ aspectj-users mailing list [email protected] https://dev.eclipse.org/mailman/listinfo/aspectj-users
