-----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

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

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

Now, this is the trace: (it's different to the other) org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) [stderr] at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) [stderr] at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) [stderr] at org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:159) [stderr] at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:210) [stderr] at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:143) [stderr] at org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) [stderr] at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) [stderr] at drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) [stderr] at drools.ejemplos.DroolsTest.<init>(DroolsTest.java:60) [stderr] at drools.ejemplos.Activator.start(Activator.java:14) [stderr] at org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) [stderr] at org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) [stderr] Caused by: java.lang.NullPointerException [stderr] at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) [stderr] ... 13 more On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino <salaboy(a)gmail.com&gt; wrote: > > If it works we can prove that most of the OSGI containers works in the > same way :) > > 2012/1/10 elMateo <soyelmateo(a)gmail.com&gt;: > > 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 > > > > > > -- >  - 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

Yes, mvel2 is a bundle in my framework and I add this file in META-INF. I find drools.packagebuilder.conf in droos-compiler, and I copy this to my META-INF dir. And it works!!!!!!  Aleluya!!!! On Tue, Jan 10, 2012 at 6:50 PM, Mauricio Salatino <salaboy(a)gmail.com&gt; wrote: > > Do you have the mvel2 bundle in your class path? > Did you add the file that I mention inside the META-INF dir inside your > app? > > Cheers. > > 2012/1/10 elMateo <soyelmateo(a)gmail.com&gt;: > > Now, this is the trace: (it's different to the other) > > > > org.drools.RuntimeDroolsException: Unable to load dialect ':mvel:null' > > [stderr] at > > > > org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:283) > > [stderr] at > > > > org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:268) > > [stderr] at > > > > org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:181) > > [stderr] at > > > > org.drools.compiler.PackageBuilderConfiguration.<init>(PackageBuilderConfiguration.java:159) > > [stderr] at > > org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:210) > > [stderr] at > > org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:143) > > [stderr] at > > > > org.drools.builder.impl.KnowledgeBuilderFactoryServiceImpl.newKnowledgeBuilder(KnowledgeBuilderFactoryServiceImpl.java:34) > > [stderr] at > > > > org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:47) > > [stderr] at > > drools.ejemplos.DroolsTest.readKnowledgeBase(DroolsTest.java:94) > > [stderr] at drools.ejemplos.DroolsTest.execute(DroolsTest.java:68) > > [stderr] at drools.ejemplos.DroolsTest.<init>(DroolsTest.java:60) > > [stderr] at drools.ejemplos.Activator.start(Activator.java:14) > > [stderr] at > > org.knopflerfish.framework.BundleImpl.start0(BundleImpl.java:356) > > [stderr] at > > org.knopflerfish.framework.BundleThread.run(BundleThread.java:107) > > [stderr] Caused by: java.lang.NullPointerException > > [stderr] at > > > > org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:278) > > [stderr] ... 13 more > > > > On Tue, Jan 10, 2012 at 6:46 PM, Mauricio Salatino <salaboy(a)gmail.com&gt; > > wrote: > >> > >> If it works we can prove that most of the OSGI containers works in the > >> same way :) > >> > >> 2012/1/10 elMateo <soyelmateo(a)gmail.com&gt;: > >> > 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 > >> > > >> > >> > >> > >> -- > >>  - 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 > > > > > > -- >  - 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

Hello all, I have, again, this exception: org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.build er.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.ja va.JavaDialectConfiguration' but I have a file in META-INFcalled drools.packagebuilder.conf, with the information above. Of course, I have all drools bundles in my Apache Felix running. And I'm using Drools 5.4.0-SNAPSHOT version. Could anybody help me?? Thanks in advance, Jesus. -- View this message in context: http://drools.46999.n3.nabble.com/NullPointerException-when-load-file-rul... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

What do you mean with "doesn't work well"? which problem are you experiencing? 2012/3/26 elMateo <soyelmateo(a)gmail.com&gt; > Hi all, > > the problem is that Drools doesn't work well with Java 1.7.0 > > On Mon, Mar 26, 2012 at 2:21 PM, jjmartinez <soyelmateo(a)gmail.com&gt; wrote: > >> Hello all, >> >> I have, again, this exception: >> >> org.drools.RuntimeDroolsException: Unable to load dialect >> 'org.drools.rule.build >> >> er.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.ja >> va.JavaDialectConfiguration' >> >> but I have a file in META-INFcalled drools.packagebuilder.conf, with the >> information above. >> >> Of course, I have all drools bundles in my Apache Felix running. And I'm >> using Drools 5.4.0-SNAPSHOT version. >> >> Could anybody help me?? >> >> Thanks in advance, Jesus. >> >> -- >> View this message in context: >> http://drools.46999.n3.nabble.com/NullPointerException-when-load-file-rul... >> Sent from the Drools: User forum mailing list archive at Nabble.com. >> _______________________________________________ >> 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 > > -- - 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

So, probably there is something related on how those resources are loaded or how the jar files are scanned when they are loaded. This doesn't means that drools doesn't work.. probably is a bug and you should report it if you can create an isolated test with the error inside Jira. Cheers 2012/3/26 elMateo <soyelmateo(a)gmail.com&gt; > With Java 7, when I run a bundle with Drools (in Apache Felix), I get > this exception: > > *org.drools.RuntimeDroolsException: Unable to load dialect* > * > 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.java.JavaDialectConfiguration' > * > > I had this problem before because I need to add inside my project that > is loading the rules the file META-INF/drools.packagebuilder.conf. I did > it when you helped me. A few days ago I installed Java 7, but I don't run > my project with Drools. Until this morning. I uninstall it and my project > work ok again :) > > > > On Mon, Mar 26, 2012 at 5:41 PM, Mauricio Salatino <salaboy(a)gmail.com&gt;wrote: > >> What do you mean with "doesn't work well"? which problem are you >> experiencing? >> >> 2012/3/26 elMateo <soyelmateo(a)gmail.com&gt; >> >>> Hi all, >>> >>> the problem is that Drools doesn't work well with Java 1.7.0 >>> >>> On Mon, Mar 26, 2012 at 2:21 PM, jjmartinez <soyelmateo(a)gmail.com&gt;wrote: >>> >>>> Hello all, >>>> >>>> I have, again, this exception: >>>> >>>> org.drools.RuntimeDroolsException: Unable to load dialect >>>> 'org.drools.rule.build >>>> >>>> er.dialect.java.JavaDialectConfiguration:java:org.drools.rule.builder.dialect.ja >>>> va.JavaDialectConfiguration' >>>> >>>> but I have a file in META-INFcalled drools.packagebuilder.conf, with >>>> the >>>> information above. >>>> >>>> Of course, I have all drools bundles in my Apache Felix running. And >>>> I'm >>>> using Drools 5.4.0-SNAPSHOT version. >>>> >>>> Could anybody help me?? >>>> >>>> Thanks in advance, Jesus. >>>> >>>> -- >>>> View this message in context: >>>> http://drools.46999.n3.nabble.com/NullPointerException-when-load-file-rul... >>>> Sent from the Drools: User forum mailing list archive at Nabble.com. >>>> _______________________________________________ >>>> 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 >>> >>> >> >> >> -- >> - 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 > > -- - 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