[jboss-jira] [JBoss JIRA] (JBRULES-3122) Classloading error with AspectJ and Drools 5.2.0.Final

Classloading error with AspectJ and Drools 5.2.0.Final ------------------------------------------------------ Key: JBRULES-3122 URL: https://issues.jboss.org/browse/JBRULES-3122 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Components: drools-core Affects Versions: 5.2.0.Final Reporter: stevearoonie Assignee: Mark Proctor NPE running Drools with AspectJ java.lang.NullPointerException at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.parseDefinitions(ClassLoaderWeavingAdaptor.java:251) at org.aspectj.weaver.loadtime.DefaultWeavingContext.getDefinitions(DefaultWeavingContext.java:130) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.initialize(ClassLoaderWeavingAdaptor.java:161) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.initialize(Aj.java:271) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.getWeavingAdaptor(Aj.java:276) at org.aspectj.weaver.loadtime.Aj$WeaverContainer.getWeaver(Aj.java:254) at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:90) at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:54) at sun.instrument.TransformerManager.transform(TransformerManager.java:169) at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:365) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:570) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:258) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:241) at org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:405) at org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:396) at org.drools.rule.JavaDialectRuntimeData.onBeforeExecute(JavaDialectRuntimeData.java:237) at org.drools.rule.DialectRuntimeRegistry.onBeforeExecute(DialectRuntimeRegistry.java:132) at org.drools.compiler.PackageBuilder.reloadAll(PackageBuilder.java:796) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:751) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:360) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:538) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at au.com.promedicus.rules.KnowledgeBaseBuilder.addPackagesFromList(KnowledgeBaseBuilder.java:108) at au.com.promedicus.rules.KnowledgeBaseBuilder.build(KnowledgeBaseBuilder.java:69) at au.com.promedicus.rules.KnowledgeBaseBuilder.build(KnowledgeBaseBuilder.java:54) I have traced the problem to org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.getResources. This returns null whereas AspectJ expects it to at least return an empty enumeration - hence the NPE.