NPE when creating a new KieScanner ---------------------------------- Key: DROOLS-2773 URL: https://issues.jboss.org/browse/DROOLS-2773 Project: Drools Issue Type: Bug Components: kie server Affects Versions: 7.8.0.Final Reporter: Raphael Bowen Giudice Assignee: Mario Fusco When creating a new *KieScanner*, a *NullPointerException* is thrown. Here's the code where the *KieScanner* is created: {code:java} final KieServices kieServices = KieServices.Factory.get(); final KieContainer kieContainer = kieServices.newKieContainer( kieServices.newReleaseId("mygroup", "rules", "1.0-SNAPSHOT")); final KieScanner kieScanner = kieServices.newKieScanner(kieContainer); {code} The method *indexArtifacts* in the *KieRepositoryScannerImpl* class, tries to index all the Maven artefacts.In my case, the artefact *sun.jdk:jconsole:jdk* cannot be resolved, which causes the *NullPointerException* in the line 399: {code:java} private Map<ReleaseId, DependencyDescriptor> indexArtifacts() { Map<ReleaseId, DependencyDescriptor> depsMap = new HashMap<ReleaseId, DependencyDescriptor>(); for (DependencyDescriptor dep : artifactResolver.getAllDependecies()) { if ( !"test".equals(dep.getScope()) && !"provided".equals(dep.getScope()) && !"system".equals(dep.getScope()) ) { Artifact artifact = artifactResolver.resolveArtifact(dep.getReleaseId()); log.debug( artifact + " resolved to " + artifact.getFile() ); // NPE happens here. if (isKJar(artifact.getFile())) { depsMap.put(adapt( dep.getReleaseIdWithoutVersion() ), new DependencyDescriptor(artifact)); } } else { log.debug("{} does not need to be resolved because in scope {}", dep, dep.getScope()); } } return depsMap; } {code} The curious part is that the *sun.jdk:jconsole:jdk* artefact is not declared in any of my projects or dependencies, as far as I could investigate. Here's the NPE stack trace: {code} Caused by: java.lang.NullPointerException: null at org.kie.scanner.KieRepositoryScannerImpl.indexArtifacts(KieRepositoryScannerImpl.java:399) at org.kie.scanner.KieRepositoryScannerImpl.setKieContainer(KieRepositoryScannerImpl.java:116) at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieScanner(KieServicesImpl.java:227) at com.test.ServiceConfoguration.kieContainer(ServiceConfoguration.java:84) at com.test.ServiceConfoguration$$EnhancerBySpringCGLIB$$4fd6caf2.CGLIB$kieContainer$2(<generated>) at com.test.ServiceConfoguration$$EnhancerBySpringCGLIB$$4fd6caf2$$FastClassBySpringCGLIB$$f73690dd.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:356) at com.test.ServiceConfoguration$$EnhancerBySpringCGLIB$$4fd6caf2.kieContainer(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ... 19 common frames omitted {code}