Re: [rules-users] NullPointerException when load file rules

Hi Mauricio, I'm going to test this. Thank you so much!! On Tue, Jan 10, 2012 at 6:35 PM, Mauricio Salatino <salaboy(a)gmail.com&gt; wrote: > > Oh.. I see what is happening here.. the Default dialects and session > configurations are not being loaded by your OSGI environment :) > It took me a while to find that out so I hope this comment helps you > to save some valuable time. > Solution: you need to add inside your project that is loading the > rules the following file: > META-INF/drools.packagebuilder.conf > > That contains the following content: > drools.dialect.default = java > drools.dialect.java = > org.drools.rule.builder.dialect.java.JavaDialectConfiguration > drools.dialect.java.compiler = ECLIPSE > > drools.dialect.mvel = > org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration > drools.dialect.mvel.strict = true > drools.dialect.mvel.langLevel = 4 > > drools.accumulate.function.average = > org.drools.base.accumulators.AverageAccumulateFunction > drools.accumulate.function.max = > org.drools.base.accumulators.MaxAccumulateFunction > drools.accumulate.function.min = > org.drools.base.accumulators.MinAccumulateFunction > drools.accumulate.function.count = > org.drools.base.accumulators.CountAccumulateFunction > drools.accumulate.function.sum = > org.drools.base.accumulators.SumAccumulateFunction > drools.accumulate.function.collectList = > org.drools.base.accumulators.CollectListAccumulateFunction > drools.accumulate.function.collectSet = > org.drools.base.accumulators.CollectSetAccumulateFunction > > drools.evaluator.coincides = > org.drools.base.evaluators.CoincidesEvaluatorDefinition > drools.evaluator.before = > org.drools.base.evaluators.BeforeEvaluatorDefinition > drools.evaluator.after = > org.drools.base.evaluators.AfterEvaluatorDefinition > drools.evaluator.meets = > org.drools.base.evaluators.MeetsEvaluatorDefinition > drools.evaluator.metby = > org.drools.base.evaluators.MetByEvaluatorDefinition > drools.evaluator.overlaps = > org.drools.base.evaluators.OverlapsEvaluatorDefinition > drools.evaluator.overlappedby = > org.drools.base.evaluators.OverlappedByEvaluatorDefinition > drools.evaluator.during = > org.drools.base.evaluators.DuringEvaluatorDefinition > drools.evaluator.includes = > org.drools.base.evaluators.IncludesEvaluatorDefinition > drools.evaluator.starts = > org.drools.base.evaluators.StartsEvaluatorDefinition > drools.evaluator.startedby = > org.drools.base.evaluators.StartedByEvaluatorDefinition > drools.evaluator.finishes = > org.drools.base.evaluators.FinishesEvaluatorDefinition > drools.evaluator.finishedby = > org.drools.base.evaluators.FinishedByEvaluatorDefinition > drools.evaluator.equality = > org.drools.base.evaluators.EqualityEvaluatorsDefinition > drools.evaluator.comparable = > org.drools.base.evaluators.ComparableEvaluatorsDefinition > drools.evaluator.set = org.drools.base.evaluators.SetEvaluatorsDefinition > drools.evaluator.matches = > org.drools.base.evaluators.MatchesEvaluatorsDefinition > drools.evaluator.soundslike = > org.drools.base.evaluators.SoundslikeEvaluatorsDefinition > > That is provided by drools-compiler.jar or drools-core.jar (I don't > have the code here) but it's not being picked up by the OSGI > container. > > Cheers > > > 2012/1/10 elMateo <soyelmateo(a)gmail.com&gt;: > > I'm using Drools 5.4.0 Beta 1 and my DRL is the Hello World of Drools :) > > (all my application is the Hello World of Drools, because I'm trying to > > do a > > OSGi bundle with this application). > > > > In my OSGi framework is running drools.core, drools.compiler and > > knowledge-api, and others bundles. > > > > Thanks for reply me. > > > > On Tue, Jan 10, 2012 at 6:15 PM, Swindells, Thomas <TSwindells(a)nds.com&gt; > > wrote: > >> > >> Looking at the stack trace, if you are on the same version as drools as > >> me > >> it looks like it is this line > >> this.rule.setDialect( getDialect().getId() ); > >> > >> The most likely reason is your DRL isn't valid - perhaps where you are > >> specifying the dialect, or it could be your > >> Dependencies aren't right or something. > >> Which version of drools are you using. Have you tried reducing your DRL > >> file to the minimum that generates the error - then post that DRL if > >> you > >> need further help. > >> > >> Thomas > >> > >> > -----Original Message----- > >> > From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users- > >> > bounces(a)lists.jboss.org] On Behalf Of jjmartinez > >> > Sent: 10 January 2012 17:05 > >> > To: rules-users(a)lists.jboss.org > >> > Subject: Re: [rules-users] NullPointerException when load file rules > >> > > >> > Anybody can help me? I don't know why my application show these > >> > errors. > >> > > >> > Thanks in advance! > >> > > >> > java.lang.NullPointerException > >>        at > >> > >> org.drools.rule.builder.RuleBuildContext.<init>(RuleBuildContext.java:88) > >>        at > >> org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1149) > >>        at > >> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:636) > >>        at > >> > >> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:266) > >>        at > >> > >> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:458) > >>        at > >> > >> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) > >>        at > >> drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:85) > >>        at drools.ejemplos.DroolsTest.execute(DroolsTest.java:64) > >>        at drools.ejemplos.DroolsTest.<init>(DroolsTest.java:56) > >>        at drools.ejemplos.Activator.start(Activator.java:14) > >>        at > >> org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) > >>        at > >> org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) > >> > >> > >> > >> > >> ************************************************************************************** > >> This message is confidential and intended only for the addressee. If > >> you > >> have received this message in error, please immediately notify the > >> postmaster(a)nds.com and delete it from your system as well as any > >> copies. The > >> content of e-mails as well as traffic data may be monitored by NDS for > >> employment and security purposes. To protect the environment please do > >> not > >> print this e-mail unless necessary. > >> > >> NDS Limited. Registered Office: One London Road, Staines, Middlesex, > >> TW18 > >> 4EX, United Kingdom. A company registered in England and Wales. > >> Registered > >> no. 3080780. VAT no. GB 603 8808 40-00 > >> > >> > >> ************************************************************************************** > >> > >> _______________________________________________ > >> 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 > > > > > > -- >  - CTO @ http://www.plugtree.com >  - MyJourney @ http://salaboy.wordpress.com >  - Co-Founder @ http://www.jugargentina.org >  - Co-Founder @ http://www.jbug.com.ar > >  - Salatino "Salaboy" Mauricio - > > _______________________________________________ > 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