Re: [rules-users] Getting an Error While Executing Rule in Drools 5.0

@ Nikhil, I am not sure weather it a good practice to seralize a package and store it , i am new to it and i am storing the drl files in db . Can we retrive our DRL file after retriving the packge from database.?? On 5/4/10, Nikhil S. Kulkarni <Nikhil.Kulkarni(a)mastek.com&gt; wrote: > Hi, > > > > I have compiled some rules and added it in packages. Then > I serialized those packages and stored in database in the form of CLOB data > > Now I am able to get Packages back from database and loaded it in > RuleBase. > > But while executing Rule, I am getting the following Exception. > > > > java.lang.NullPointerException > > at > org.drools.base.ClassFieldReader.getValue(ClassFieldReader.java:91) > > at > org.drools.base.evaluators.EqualityEvaluatorsDefinition$StringEqualEvaluator.evaluate(EqualityEvaluatorsDefinition.java:1962) > > at > org.drools.rule.LiteralRestriction.isAllowed(LiteralRestriction.java:92) > > at > org.drools.rule.OrCompositeRestriction.isAllowed(OrCompositeRestriction.java:25) > > at > org.drools.rule.MultiRestrictionFieldConstraint.isAllowed(MultiRestrictionFieldConstraint.java:97) > > at > org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:143) > > at > org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:360) > > at > org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:344) > > at > org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185) > > at > org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146) > > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046) > > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001) > > at > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788) > > at > org.drools.reteoo.ReteooStatelessSession.execute(ReteooStatelessSession.java:201) > > > > The similar kind of issue is already logged by someone. > > > > Please inform If anyone has an idea about this. > > Waiting for Reply. > > > > Thanks & Regards, > > Nikhil S. Kulkarni > > > > > > MASTEK LTD. > Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. > In the US, we're called MAJESCOMASTEK > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its attachments have been scanned for the presence of computer viruses. It is the responsibility of the recipient to run the virus check on e-mails and attachments before opening them. If you have received this e-mail in error, kindly delete this e-mail from desktop and server. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users