Do you have at least the stack trace? Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Tue, Aug 30, 2011 at 11:32 AM, ayonchak <ayon.chakrabo...@genworth.com>wrote: > Hi All, > > I am getting Nullpointer exception the application is trying to > reloadKnwledgeBase. I have the following code in application. > > public void init() { > logger.info("Group Rule Engine Initiated..!!"); > /** > * Polling interval needs to be externalized > */ > > knowledgeAgent = > KnowledgeAgentFactory.newKnowledgeAgent("FiveSeries"); > knowledgeAgent.applyChangeSet(ResourceFactory > .newFileResource(propertyReader > > .getProperty("DROOLS_GUVNOR_CHAGNE_SET_XML_PATH"))); > > ResourceFactory.getResourceChangeScannerService().start(); > ResourceFactory.getResourceChangeNotifierService().start(); > > if (knowledgeAgent != null && > knowledgeAgent.getKnowledgeBase()!=null && > !knowledgeAgent.getKnowledgeBase().getKnowledgePackages().isEmpty()) { > knowledgeBase = knowledgeAgent.getKnowledgeBase(); > } > logger.info("Group Rule Engine is ready to use..!!"); > } > > public void reloadKnowledgeBase() { > if (knowledgeAgent != null && > knowledgeAgent.getKnowledgeBase()!=null && > !knowledgeAgent.getKnowledgeBase().getKnowledgePackages().isEmpty()) { > knowledgeBase = knowledgeAgent.getKnowledgeBase(); > logger.debug("KnowledgeBase reloaded..!!"); > } else { > logger.info("KnowledgeBase not reloaded..!!"); > > ResourceFactory.getResourceChangeScannerService().stop(); > > ResourceFactory.getResourceChangeNotifierService().stop(); > init(); > } > } > > reloadKnowledgeBase() is called once in application during Login. The > problem is occurring in Development application. When I am using that > Change-Set.xml in my local application, it is working perfectly fine. I m > not getting the problem. I bounced both Jboss and application servers but > still no luck! > > -- > View this message in context: > http://drools.46999.n3.nabble.com/reloadKnowledgeBase-java-lang-NullPointerException-tp3295019p3295019.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 >
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