Hi Mario thanks! Give me an hour and I will get back with more details! - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Mauricio "Salaboy" Salatino -
On 15/11/2011, at 12:47, Mario Fusco <mario.fu...@gmail.com> wrote: > Mauricio, > > I am the author of that change, so maybe I can help. > > First of all it seems weird to me that both the 5.3.0-Final and the > 5.4.0-SNAPSHOT fail in the same way. I suppose the exception thrown by the > 5.3 should be at least slightly different because it uses a different > implementation of the ConsequenceGenerator. If so could you please send also > the exception you get with the 5.3? > > Moreover I honestly don't know what WSO2 is but I guess this issue could be > related with some specific constraint in its ClassLoader. Could you give me > some more info in order to allow me to reproduce the same problem? By the > way, does it happens with any rules or do you have a specific use case that > causes this problem? > > In the end I can give you a quick workaround, but you will have to change the > Drools source and of course recompile it. If you can do that you have to go > to the JavaDialect class: > > https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/main/java/org/drools/rule/builder/dialect/java/JavaDialect.java#L92 > > comment all the lines using the new ASM*Builders (94, 98, 102, 106) and > uncomment the lines for the corresponding Java*Builer (92, 96, 100, 104). I > know this is not the ideal solution, but at least it will allow us to figure > out if the problem is actually where I am supposing. > > I could easily implement a fallback mechanism that will use the old Builders > if the new ones fail for some reason, but before to do that I'd like to > understand what's going on. So it will be great if you could send be some > more details to help me to figure out what's wrong. > > I hope this helps, > Mario > > On Tue, Nov 15, 2011 at 4:14 PM, Mauricio Salatino <sala...@gmail.com> wrote: > Hi guys, > I'm working here trying to find out a little problem that I'm having with > Drools 5.4.0-SNAPSHOT and 5.3.0-Final. > I'm using WSO2 container to deploy a very simple service and when a rule gets > activated the following exception appears (with 5.4.0-SNAPSHOT): > > Exception in thread "Thread-44" java.lang.ClassCircularityError: > org/drools/rule/builder/dialect/asm/ConsequenceGenerator > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:262) > at > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:105) > at > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.loadClass(JavaDialectRuntimeData.java:540) > at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > at > org.eclipse.core.runtime.internal.adaptor.ContextFinder.loadClass(ContextFinder.java:124) > at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:262) > at > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:105) > at > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.loadClass(JavaDialectRuntimeData.java:540) > at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > at > test.Rule_request_bed_ede4a687c29740c8bb9f13968941e6a1DefaultConsequenceInvoker.evaluate(Unknown > Source) > at > org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1091) > at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1029) > at > org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1229) > at > org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:756) > at > org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:732) > at > org.drools.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:234) > at > com.wordpress.salaboy.hospital.HospitalServiceImpl$1.run(HospitalServiceImpl.java:71) > > I'm worried to see that I don't have any problems with 5.1.1 but with later > version all throw similar issues. > I will be trying to solve this issue, but if someone has a clue about what > can be happening here, please let me know. > > I know that this can be a particular issue with WSO2, but it looks like > something has changed inside drools. > > Cheers > > > -- > - 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-dev mailing list > rules-...@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > > > _______________________________________________ > rules-dev mailing list > rules-...@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev
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