We have a number of add/remove rule tests, could you reproduce your problem, using the same classes and format as outlined in this test class. Ideally adding your reproducer as a single failing test method: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/AddRemoveRulesTest.java
Creating JIRA’s and submitting pull requests. http://docs.jboss.org/drools/release/5.6.0.Final/droolsjbpm-introduction-docs/html/gettingstarted.html Mark On 6 Jun 2014, at 09:12, tia <rabarijaonadomo...@gmail.com> wrote: > Hello, > > I'm trying to add a new rule on the fly like here: > https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L158 > > Here is the method to add a rule, once the KieSession is created and > configured: > public void addRule(String rule){ > > KieServices ks= KieServices.Factory.get(); > ReleaseId rid= ks.newReleaseId("org.kie", "businessrules", > "1.0"); > > KieFileSystem kfs = ks.newKieFileSystem(); > kfs.generateAndWritePomXML(rid); > kfs.write("src/main/resources/rule.drl",rule); > KieBuilder kb = ks.newKieBuilder(kfs).buildAll(); > if( kb.getResults().hasMessages( > org.kie.api.builder.Message.Level.ERROR ) > ) { > for( org.kie.api.builder.Message result : > kb.getResults().getMessages() ) > { > System.err.println(result.getText()); > } > } > InternalKieModule kieModule = (InternalKieModule) > ks.getRepository() > .getKieModule(rid); > byte[] jar = kieModule.getBytes(); > > Resource jarRes = ks.getResources().newByteArrayResource(jar); > ks.getRepository().addKieModule(jarRes); > kieContainer.updateToVersion(rid); > } > > But when I'm calling this method, I get the error below: > java.lang.NullPointerException > at org.drools.core.util.LinkedList.remove(LinkedList.java:168) > at > org.drools.core.phreak.AddRemoveRule.mergeSegment(AddRemoveRule.java:938) > at > org.drools.core.phreak.AddRemoveRule.correctSegmentOnSplitOnRemove(AddRemoveRule.java:377) > at > org.drools.core.phreak.AddRemoveRule.removeRule(AddRemoveRule.java:182) > at > org.drools.core.reteoo.ReteooBuilder.removeTerminalNode(ReteooBuilder.java:171) > at > org.drools.core.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java:165) > at > org.drools.core.reteoo.ReteooRuleBase.removeRule(ReteooRuleBase.java:1406) > at > org.drools.core.reteoo.ReteooRuleBase.removeObjectsGeneratedFromResource(ReteooRuleBase.java:1652) > at > org.drools.compiler.compiler.PackageBuilder.removeObjectsGeneratedFromResource(PackageBuilder.java:3898) > at > org.drools.compiler.kie.builder.impl.KieContainerImpl.updateToVersion(KieContainerImpl.java:114) > > For the line : "kieContainer.updateToVersion(rid);" > > But if I'm firing the rules once (kieSession.fireAllRules();) before adding > the new rule, I don't get the exception O_o > > Someone has any idea why ? > > thanks! > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/NullPointerException-at-org-drools-compiler-kie-builder-impl-KieContainerImpl-updateToVersion-tp4029894.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
