Re: [rules-users] stuck! Unknown accessor type: org.mvel2.optimizers.impl.refl.collection.ArrayCreator@690c2a7a
I just fixed this issue on master with this commit: https://github.com/droolsjbpm/drools/commit/fb7c8858f Thank you for having reported it, Mario -- View this message in context: http://drools.46999.n3.nabble.com/stuck-Unknown-accessor-type-org-mvel2-optimizers-impl-refl-collection-ArrayCreator-690c2a7a-tp4020969p4027818.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
Re: [rules-users] stuck! Unknown accessor type: org.mvel2.optimizers.impl.refl.collection.ArrayCreator@690c2a7a
Thank you. few questions: 1. does exist an option to dismiss this error, even if it says to disable this mvel constraints optimizations? 2. when and where will it be released? can it be fixed on 5.5 or 5.6? -- View this message in context: http://drools.46999.n3.nabble.com/stuck-Unknown-accessor-type-org-mvel2-optimizers-impl-refl-collection-ArrayCreator-690c2a7a-tp4020969p4027820.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
Re: [rules-users] Buggy query behavior in drools 5.6 and 6.1-SNAPSHOT ??
Let me see what I can do.
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Thu, Jan 23, 2014 at 12:18 AM, Davide Sottara dso...@gmail.com wrote:
Esteban, I have created a ticket for this with
an explanation of the weird behavior.
https://issues.jboss.org/browse/DROOLS-414
The problem is in QueryElementBuilder line#343.
It's an easy fix but I don't have time for it right now,
could someone look into it?
Thanks
Davide
On 01/22/2014 06:00 PM, Esteban Aliverti wrote:
Good catch Davide. I can confirm that not using nested accessors the query
works as expected.
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
On Wed, Jan 22, 2014 at 6:57 PM, Davide Sottara dso...@gmail.com wrote:
Indeed, the use case can be simplified further:
package org.drools.test.bc;
declare Parent
attribute2 : String
end
declare Child
parentId : String
end
query getChildWithName( String $parentId, Child $child )
$child:= Child( parentId == $parentId )
end
rule Insert Children
when
then
Parent p1 = new Parent( a1 );
Child c1p1 = new Child( 1 );
insert( c1p1 );
insert( p1 );
end
rule Rule A
when
$p: Parent( $a2 : attribute2 )
?getChildWithName( $p.attribute2, $child;)
then
System.out.println(FOUND: + $child ++ $child.getParentId()
+ == + $p.getAttribute2() + ?? );
end
It has nothing to do with nested objects, @PR or modifications.
It seems that the culprit is the chained property accessor.
Davide
On 01/22/2014 02:22 PM, Esteban Aliverti wrote:
Hi guys,
I was writing some rules using backward chaining and found a strange
behavior.
I managed to isolate the error in the test project I'm attaching.
In the project I have 2 classes: Parent and Child
Parent:
* String id
* String attribute1
* String attribute2
* ListChild children
Child:
* String parentId;
* String name;
* String value;
In the test I'm creating 1 Parent object with just 1 child and then
inserting the Parent object into a drools session:
Parent p1 = new Parent();
p1.setId(1);
p1.setAttribute1(a1);
p1.setAttribute2(null);
Child c1p1 = new Child();
c1p1.setName(n1);
c1p1.setParentId(p1.getId());
c1p1.setValue(v1.1);
p1.addChild(c1p1);
kSession.insert(p1);
kSession.fireAllRules();
So far so good.
The rules I have in my session are the following:
declare Parent
@propertyReactive
end
query getChildWithName(String $parentId, String $name, Child $child)
$child:= Child(parentId == $parentId, name == $name)
end
rule Insert Children
when
$p: Parent()@watch(!*)
$c: Child() from $p.children
then
System.out.println(Inserting child +$c);
insert($c);
end
rule Rule A
when
$p: Parent(attribute2 != null)
?getChildWithName($p.attribute2, n1, $child;)
then
System.out.println(FOUND: +$child+. The attribute 'parentId' of
this object must have the value '+$p.getAttribute2()+'. Does it?
+$child.getParentId()+ == +$p.getAttribute2()+ ??);
globalList.add($child);
end
rule Copy Attribute1 into Attribute2
when
$p: Parent(attribute1 != null, attribute2 == null)
then
modify($p){
setAttribute2($p.getAttribute1())
}
end
The important part here is 'Rule A' and 'Copy Attribute1 into
Attribute2'. The latter copies the value of attribute1 to attribute2 for
any Parent object present in the session. (Note that the parent I'm
inserting has attribute2 = null). 'Rule A' is then using a query to get a
Child object that has a parent with id = $p.attribute2 (where $p is a
previously matched Parent).
Given that I only have 1 Parent in my session and that its id is '1' I
don't expect 'Rule A' to be activated/executed. When I modify
parent.attribute2 in 'Copy Attribute1 into Attribute2' I'm setting its
value to 'a1'. 'Rule A' (via the query) should then look for a Child with
parentid = 'a1' and It shouldn't find anything.
Funny thing is that 'Rule A' activates and fires. The child object that
is 'returned' by the query has a parentId of '1' so I don't know how this
behavior is possible. If you take a look at the System.out output you will
see that the activation makes no sense at all.
Am I doing something wrong in my project? Is this a bug? Is this the
expected behavior?
Regards,
Esteban Aliverti
- Blog @ http://ilesteban.wordpress.com
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[rules-users] java dialect and declared types
If I declare a type in a drl and reference the attributes in a rule then all is fine for either dialect. But, if one of the attributes is a java class that has been compiled and inserted then under the java dialect only I get a compilation error: rule compilation error the field ... is not visible for example declare DroolsTransaction ORG : String PRODUCT : String raw : Transaction end rule create classes salience 100 when $t : Transaction() then insert(new DroolsTransaction((String)$t.fieldFor(ORG), (String)$t.fieldFor(PRODUCT), $t)); end I insert Transaction objects in the session and this works fine for the following rule if I have the dialect set to mvel. rule 1 when $t : DroolsTransaction(ORG == A , PRODUCT == 001, raw.complicated()) then do something end but when I switch dialects to java, the compilation complains that raw is not visible. I guess drools is dynamically creating the DroolsTransaction object with private fields... and I need public accessors - how to define them? -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822.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
Re: [rules-users] java dialect and declared types
Declared types have public accessors as usual. This seems a minor bug in the expression analysis. Can you try getRaw().complicated() and / or raw.complicated and report what happens? Thanks Davide On 01/23/2014 06:40 AM, pmander wrote: If I declare a type in a drl and reference the attributes in a rule then all is fine for either dialect. But, if one of the attributes is a java class that has been compiled and inserted then under the java dialect only I get a compilation error: rule compilation error the field ... is not visible for example declare DroolsTransaction ORG : String PRODUCT : String raw : Transaction end rule create classes salience 100 when $t : Transaction() then insert(new DroolsTransaction((String)$t.fieldFor(ORG), (String)$t.fieldFor(PRODUCT), $t)); end I insert Transaction objects in the session and this works fine for the following rule if I have the dialect set to mvel. rule 1 when $t : DroolsTransaction(ORG == A , PRODUCT == 001, raw.complicated()) then do something end but when I switch dialects to java, the compilation complains that raw is not visible. I guess drools is dynamically creating the DroolsTransaction object with private fields... and I need public accessors - how to define them? -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] java dialect and declared types
will do, although complicated() has parameters and so I think I'll only able to try getRaw.complicated() -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027825.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
Re: [rules-users] java dialect and declared types
In that case I'm almost sure that the whole constraint has to be treated as a java expression. So yes, you will probably need getRaw().complicated( ... ) On 01/23/2014 08:06 AM, pmander wrote: will do, although complicated() has parameters and so I think I'll only able to try getRaw.complicated() -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027825.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] java dialect and declared types
Yes, if you use the java dialect, the whole RHS is parsed as a java block with some minor syntactic sugar (e.g. insert). On 01/23/2014 08:46 AM, pmander wrote: Davide Sottara wrote Declared types have public accessors as usual. This seems a minor bug in the expression analysis. Can you try getRaw().complicated() and / or raw.complicated and report what happens? Thanks Davide getRaw().complicated() works. This isn't just in the constraint. I use raw in the then also and it needs changing to getRaw() also. Thanks -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027827.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] java dialect and declared types
please do pop onto irc and provides us with more details on the performance testing you are doing. We need to add more tests to our test suite, to track any regressions. http://www.jboss.org/drools/irc Mark On 23 Jan 2014, at 15:11, pmander paul.s.man...@gmail.com wrote: Thanks, This was just for a performance test to check mvel against java. Mvel in our case is quicker. The tests also show that 5.5.0 is quicker than 6.0.0. -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027829.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] java dialect and declared types
Hi, I'd like to reproduce and verify your performance claims. If you found a performance regression it would be very interesting for me to investigate it. Could you please send a small self-contained project with the benchmarks you tried? Personally I believe that The tests also show that 5.5.0 is quicker than 6.0.0 isn't true in general. For instance Geoffrey De Smet just published a performance comparison between phreak (the default algorithm in 6) and reteoo demonstrating quite the opposite: http://blog.athico.com/2014/01/which-rule-engine-algorithm-is-faster.html Nevertheless it is very possible that your claim is perfectly valid for your test case, so I'd like to discover under which circumstances 5.5. is actually faster than 6 and check if we can improve also in those cases. Thanks, Mario -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027831.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
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
I wasn't subscribed to the mailing list so I don't think my message below went through. Apologies if it did. jhusby wrote I'm trying to run Drools in an OSGi container (Apache Karaf 2.3.3 to be precise). When I try to call newKieSession() on a KieContainer, I get an exception as follows: java.lang.IllegalArgumentException: conflict Resolver 'org.drools.core.conflict.DepthConflictResolver' not found at org.drools.core.RuleBaseConfiguration.determineConflictResolver(RuleBaseConfiguration.java:868)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:459)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:415)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration. init (RuleBaseConfiguration.java:402)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.impl.KnowledgeBaseFactoryServiceImpl.newKnowledgeBaseConfiguration(KnowledgeBaseFactoryServiceImpl.java:37)[276:org.drools.core:6.0.1.20131220-0333] at org.kie.internal.KnowledgeBaseFactory.newKnowledgeBaseConfiguration(KnowledgeBaseFactory.java:125)[275:org.kie.internalapi:6.0.1.20131220-0322] at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKnowledgeBaseConfiguration(KieContainerImpl.java:323)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:316)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:257)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:400)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:349)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:331)[277:org.drools.compiler:6.0.1.20131220-0333] As a workaround, I was able to get it working by doing this: KieBaseConfiguration kbaseConf = KnowledgeBaseFactory .newKnowledgeBaseConfiguration( null, getClass().getClassLoader(), RuleBaseConfiguration.class.getClassLoader() ); KieBase kbase = kContainer.newKieBase(kbaseConf); kSession = kbase.newKieSession(); but this is obviously less than ideal. Any ideas on how to make this work better in OSGi? Thank you! Joseph -- View this message in context: http://drools.46999.n3.nabble.com/kContainer-newKieSession-fails-in-Apache-Karaf-tp4027815p4027832.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
[rules-users] Dynamic rules in Drools 6
Looking at the test case from Edson, quoted below, it appears that there's no way to reuse a current session when upgrading the kbase rules? I need to add and remove rules on the fly, and so if I have a stateful session, does this mean I need to dispose of the current session, upgrade the container, create a new session, and repopulate it with all my objects? I was hoping to simply rebuild the repository, call kContainer.updateToVersion(), and have the the session (with all my objects still populated) automatically use that new version of the rules repository. Is this not possible? Thanks, Joseph Edson Tirelli-4 wrote Here is a code example of creating kie modules in memory and upgrading existing kbases/ksessions: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L106 It is a test case, but maybe it will be easier to follow. We are working on additional ways of doing similar things as well. Edson -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-rules-in-Drools-6-tp4027833.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
Re: [rules-users] java dialect and declared types
I should qualify this with the way that we are using drools. In general perhaps 6 is quicker that 5.5. It will be extremely difficult to create a self contained test to demonstrate this as the tests are performed with tens of millions of transactions against ten of thousands of rules. I will however attempt to scale this down to something that can demonstrate these findings. This wont happen straight away so pin this thread and hopefully in a week or so I will be able to submit something. -- View this message in context: http://drools.46999.n3.nabble.com/java-dialect-and-declared-types-tp4027822p4027834.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
Re: [rules-users] Dynamic rules in Drools 6
There may be some misunderstanding here.. you can indeed rebuild the jar, but there is also a programmatic way to add (DRL) resources to an in-memory FS and update the KBs/KSs on the fly. See the examples in IncrementalCompilationTests Davide On 01/23/2014 10:11 AM, Mark Proctor wrote: On 23 Jan 2014, at 16:02, jhusby husby...@umn.edu wrote: Looking at the test case from Edson, quoted below, it appears that there's no way to reuse a current session when upgrading the kbase rules? I need to add and remove rules on the fly, and so if I have a stateful session, does this mean I need to dispose of the current session, upgrade the container, create a new session, and repopulate it with all my objects? I was hoping to simply rebuild the repository, call kContainer.updateToVersion(), and have the the session (with all my objects still populated) automatically use that new version of the rules repository. Is this not possible? yes,this is how it works now. Make sure you build the jar with the maven plugin, so that it can performance the incremental diff. We have a number of low level unit tests, that show this should work. If you have found a bug, please update the test class here: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java Mark Thanks, Joseph Edson Tirelli-4 wrote Here is a code example of creating kie modules in memory and upgrading existing kbases/ksessions: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L106 It is a test case, but maybe it will be easier to follow. We are working on additional ways of doing similar things as well. Edson -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-rules-in-Drools-6-tp4027833.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Dynamic rules in Drools 6
On 23 Jan 2014, at 16:02, jhusby husby...@umn.edu wrote: Looking at the test case from Edson, quoted below, it appears that there's no way to reuse a current session when upgrading the kbase rules? I need to add and remove rules on the fly, and so if I have a stateful session, does this mean I need to dispose of the current session, upgrade the container, create a new session, and repopulate it with all my objects? I was hoping to simply rebuild the repository, call kContainer.updateToVersion(), and have the the session (with all my objects still populated) automatically use that new version of the rules repository. Is this not possible? yes,this is how it works now. Make sure you build the jar with the maven plugin, so that it can performance the incremental diff. We have a number of low level unit tests, that show this should work. If you have found a bug, please update the test class here: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java Mark Thanks, Joseph Edson Tirelli-4 wrote Here is a code example of creating kie modules in memory and upgrading existing kbases/ksessions: https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L106 It is a test case, but maybe it will be easier to follow. We are working on additional ways of doing similar things as well. Edson -- View this message in context: http://drools.46999.n3.nabble.com/Dynamic-rules-in-Drools-6-tp4027833.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
Hi Joseph, I propose that you have a look to this example which is currently working on Karaf - https://github.com/cmoulliard/droolsjbpm-osgi-examples (simple = OSGI BundleActivator + KieSession + Drools Rules) Regards, Charles On Thu, Jan 23, 2014 at 4:58 PM, jhusby husby...@umn.edu wrote: I wasn't subscribed to the mailing list so I don't think my message below went through. Apologies if it did. jhusby wrote I'm trying to run Drools in an OSGi container (Apache Karaf 2.3.3 to be precise). When I try to call newKieSession() on a KieContainer, I get an exception as follows: java.lang.IllegalArgumentException: conflict Resolver 'org.drools.core.conflict.DepthConflictResolver' not found at org.drools.core.RuleBaseConfiguration.determineConflictResolver(RuleBaseConfiguration.java:868)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:459)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:415)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.RuleBaseConfiguration. init (RuleBaseConfiguration.java:402)[276:org.drools.core:6.0.1.20131220-0333] at org.drools.core.impl.KnowledgeBaseFactoryServiceImpl.newKnowledgeBaseConfiguration(KnowledgeBaseFactoryServiceImpl.java:37)[276:org.drools.core:6.0.1.20131220-0333] at org.kie.internal.KnowledgeBaseFactory.newKnowledgeBaseConfiguration(KnowledgeBaseFactory.java:125)[275:org.kie.internalapi:6.0.1.20131220-0322] at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKnowledgeBaseConfiguration(KieContainerImpl.java:323)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:316)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:257)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:400)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:349)[277:org.drools.compiler:6.0.1.20131220-0333] at org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:331)[277:org.drools.compiler:6.0.1.20131220-0333] As a workaround, I was able to get it working by doing this: KieBaseConfiguration kbaseConf = KnowledgeBaseFactory .newKnowledgeBaseConfiguration( null, getClass().getClassLoader(), RuleBaseConfiguration.class.getClassLoader() ); KieBase kbase = kContainer.newKieBase(kbaseConf); kSession = kbase.newKieSession(); but this is obviously less than ideal. Any ideas on how to make this work better in OSGi? Thank you! Joseph -- View this message in context: http://drools.46999.n3.nabble.com/kContainer-newKieSession-fails-in-Apache-Karaf-tp4027815p4027832.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 -- Charles Moulliard Apache Committer / Architect @RedHat Twitter : @cmoulliard | Blog : http://cmoulliard.github.io ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
I actually looked through your example project yesterday; very helpful!!! However, there are a few things I'm not sure are compatible with what I'm trying to do. 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. Thank you, Joseph Charles Moulliard-2 wrote Hi Joseph, I propose that you have a look to this example which is currently working on Karaf - https://github.com/cmoulliard/droolsjbpm-osgi-examples (simple = OSGI BundleActivator + KieSession + Drools Rules) Regards, Charles -- View this message in context: http://drools.46999.n3.nabble.com/kContainer-newKieSession-fails-in-Apache-Karaf-tp4027815p4027838.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
[rules-users] Kie-Workbench install error
Hi! I am trying to install the Kie-workbench war to a jboss 7 environment and get the exception below. I would imagine this is because of firewall and my company will not open a connection to this repo. My question: is there a way to have the deployment go through without loading the example projects? Thanks! Caused by: java.lang.RuntimeException: https://github.com/guvnorngtestuser1/guvnorng-playground.git: cannot open git-upload-pack at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper.newRepository(GitRepositoryFactoryHelper.java:80) at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.newRepository(GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl.newRepository(RepositoryFactoryImpl.java:36) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.newRepository(RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:182) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:173) at org.uberfire.backend.server.repositories.RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.createRepository(RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.java) at org.kie.workbench.drools.backend.server.AppSetup.createRepository(AppSetup.java:274) at org.kie.workbench.drools.backend.server.AppSetup.assertPlayground(AppSetup.java:101) ... 43 more -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840.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
Re: [rules-users] Kie-Workbench install error
http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/wb.Workbench.html#wb.Installation 15.1.3. System properties org.kie.demo: Enables external clone of a demo application from GitHub. This System Property takes precedence over org.kie.example. Default: true org.kie.example: Enables example structure composed by Repository, Organization Unit and Project. Default: false Mark On 23 Jan 2014, at 18:38, gboro54 gbor...@gmail.com wrote: Hi! I am trying to install the Kie-workbench war to a jboss 7 environment and get the exception below. I would imagine this is because of firewall and my company will not open a connection to this repo. My question: is there a way to have the deployment go through without loading the example projects? Thanks! Caused by: java.lang.RuntimeException: https://github.com/guvnorngtestuser1/guvnorng-playground.git: cannot open git-upload-pack at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper.newRepository(GitRepositoryFactoryHelper.java:80) at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.newRepository(GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl.newRepository(RepositoryFactoryImpl.java:36) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.newRepository(RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:182) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:173) at org.uberfire.backend.server.repositories.RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.createRepository(RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.java) at org.kie.workbench.drools.backend.server.AppSetup.createRepository(AppSetup.java:274) at org.kie.workbench.drools.backend.server.AppSetup.assertPlayground(AppSetup.java:101) ... 43 more -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Kie-Workbench install error
I found that 5 minutes after posting...guess it proves you should read documentation before posting... Thanks! Mark Proctor wrote http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/wb.Workbench.html#wb.Installation 15.1.3. System properties org.kie.demo: Enables external clone of a demo application from GitHub. This System Property takes precedence over org.kie.example. Default: true org.kie.example: Enables example structure composed by Repository, Organization Unit and Project. Default: false Mark On 23 Jan 2014, at 18:38, gboro54 lt; gboro54@ gt; wrote: Hi! I am trying to install the Kie-workbench war to a jboss 7 environment and get the exception below. I would imagine this is because of firewall and my company will not open a connection to this repo. My question: is there a way to have the deployment go through without loading the example projects? Thanks! Caused by: java.lang.RuntimeException: https://github.com/guvnorngtestuser1/guvnorng-playground.git: cannot open git-upload-pack at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper.newRepository(GitRepositoryFactoryHelper.java:80) at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.newRepository(GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl.newRepository(RepositoryFactoryImpl.java:36) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.newRepository(RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:182) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:173) at org.uberfire.backend.server.repositories.RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.createRepository(RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.java) at org.kie.workbench.drools.backend.server.AppSetup.createRepository(AppSetup.java:274) at org.kie.workbench.drools.backend.server.AppSetup.assertPlayground(AppSetup.java:101) ... 43 more -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840p4027842.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
Re: [rules-users] Kie-Workbench install error
There's also org.kie.example.repositories that can point to a local folder containing the example repositories. The workbench distribution on the drools download page contains a zip holding the example repositories that are at github (for those unable to access github). Sent on the move On 23 Jan 2014 19:58, gboro54 gbor...@gmail.com wrote: I found that 5 minutes after posting...guess it proves you should read documentation before posting... Thanks! Mark Proctor wrote http://docs.jboss.org/drools/release/6.0.1.Final/drools-docs/html/wb.Workbench.html#wb.Installation 15.1.3. System properties org.kie.demo: Enables external clone of a demo application from GitHub. This System Property takes precedence over org.kie.example. Default: true org.kie.example: Enables example structure composed by Repository, Organization Unit and Project. Default: false Mark On 23 Jan 2014, at 18:38, gboro54 lt; gboro54@ gt; wrote: Hi! I am trying to install the Kie-workbench war to a jboss 7 environment and get the exception below. I would imagine this is because of firewall and my company will not open a connection to this repo. My question: is there a way to have the deployment go through without loading the example projects? Thanks! Caused by: java.lang.RuntimeException: https://github.com/guvnorngtestuser1/guvnorng-playground.git: cannot open git-upload-pack at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper.newRepository(GitRepositoryFactoryHelper.java:80) at org.uberfire.backend.server.repositories.git.GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.newRepository(GitRepositoryFactoryHelper$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl.newRepository(RepositoryFactoryImpl.java:36) at org.uberfire.backend.server.repositories.RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.newRepository(RepositoryFactoryImpl$Proxy$_$$_WeldClientProxy.java) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:182) at org.uberfire.backend.server.repositories.RepositoryServiceImpl.createRepository(RepositoryServiceImpl.java:173) at org.uberfire.backend.server.repositories.RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.createRepository(RepositoryServiceImpl$Proxy$_$$_WeldClientProxy.java) at org.kie.workbench.drools.backend.server.AppSetup.createRepository(AppSetup.java:274) at org.kie.workbench.drools.backend.server.AppSetup.assertPlayground(AppSetup.java:101) ... 43 more -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@.jboss https://lists.jboss.org/mailman/listinfo/rules-users -- View this message in context: http://drools.46999.n3.nabble.com/Kie-Workbench-install-error-tp4027840p4027842.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
Hi Joseph, My example uses this META-INF/kmodules.xml to create the KieBase On Thu, Jan 23, 2014 at 6:01 PM, jhusby husby...@umn.edu wrote: I actually looked through your example project yesterday; very helpful!!! However, there are a few things I'm not sure are compatible with what I'm trying to do. 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. Thank you, Joseph Charles Moulliard-2 wrote Hi Joseph, I propose that you have a look to this example which is currently working on Karaf - https://github.com/cmoulliard/droolsjbpm-osgi-examples(simple = OSGI BundleActivator + KieSession + Drools Rules) Regards, Charles -- View this message in context: http://drools.46999.n3.nabble.com/kContainer-newKieSession-fails-in-Apache-Karaf-tp4027815p4027838.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 -- Charles Moulliard Apache Committer / Architect @RedHat Twitter : @cmoulliard | Blog : http://cmoulliard.github.io ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
Hi Joseph, 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? My example uses this META-INF/kmodules.xml file to let the KieContainer to scan and discover the resources (.drl, pacjkages) when we call KieContainer kcont = ks.newKieClasspathContainer(getClass().getClassLoader()); KieBase kbase = kcont.getKieBase(sampleKBase); As you have mentioned in your email, this is a static approach as we load the resources before to create a KieSession and fire the rules. To be able to do increment, the approach that you mention is the way to go. I have also created an example where the KieModule is created using a programming approach -- *https://github.com/cmoulliard/droolsjbpm-osgi-examples/blob/master/simple-external-resource/src/main/java/org/drools/example/osgi/FetchExternalResourceOsgiActivator.java https://github.com/cmoulliard/droolsjbpm-osgi-examples/blob/master/simple-external-resource/src/main/java/org/drools/example/osgi/FetchExternalResourceOsgiActivator.java. That should not be difficult to adapt it to support increment* 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? I need that Mario Fusco or Marc Proctor confirm what I will say here (or somebody) else but I suspect that if you create a session on the KieContainer level and not on the KieBase could allow you to support increment as this unit test show you ( https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L660) without having to recreate a new session (stateless) 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. I have no ideas if my modifications will be merged with 6.0.x release. Mario Fusco should be able to provide a response Regards, On Thu, Jan 23, 2014 at 6:01 PM, jhusby husby...@umn.edu wrote: I actually looked through your example project yesterday; very helpful!!! However, there are a few things I'm not sure are compatible with what I'm trying to do. 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. Thank you, Joseph Charles Moulliard-2 wrote Hi Joseph, I propose that you have a look to this example which is currently working on Karaf - https://github.com/cmoulliard/droolsjbpm-osgi-examples(simple = OSGI BundleActivator + KieSession + Drools Rules) Regards, Charles -- View this message in context: http://drools.46999.n3.nabble.com/kContainer-newKieSession-fails-in-Apache-Karaf-tp4027815p4027838.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 -- Charles Moulliard Apache Committer /
Re: [rules-users] stuck! Unknown accessor type: org.mvel2.optimizers.impl.refl.collection.ArrayCreator@690c2a7a
brachi wrote 1. does exist an option to dismiss this error, even if it says to disable this mvel constraints optimizations? It is just an harmless log statement and if you want to silent it you just have to configure your logback.xml file accordingly (i.e. raising the log level of org.drools.core.rule.constraint.MvelConstraint to error). brachi wrote 2. when and where will it be released? can it be fixed on 5.5 or 5.6? I still don't know if we will drop a 5.6.1 release, but I don't think so. Very likely this fix will be available only on 6.x Mario -- View this message in context: http://drools.46999.n3.nabble.com/stuck-Unknown-accessor-type-org-mvel2-optimizers-impl-refl-collection-ArrayCreator-690c2a7a-tp4020969p4027849.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
Re: [rules-users] kContainer.newKieSession() fails in Apache Karaf
Joseph, Concerning the KieSession, here is the response : What is the difference if I create a session on KieContainer vs KieBase (Global, Local List ...) ? there shouldn't be any difference. the possibility of creating a session from a KieContainer is just a shortcut. under the hood it retrieves the KieBase in which that KieSession has been defined (or build it if you're using it for the first time) and then creates the KieSession from there Regards, On Fri, Jan 24, 2014 at 8:38 AM, Charles Moulliard ch0...@gmail.com wrote: Hi Joseph, 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? My example uses this META-INF/kmodules.xml file to let the KieContainer to scan and discover the resources (.drl, pacjkages) when we call KieContainer kcont = ks.newKieClasspathContainer(getClass().getClassLoader()); KieBase kbase = kcont.getKieBase(sampleKBase); As you have mentioned in your email, this is a static approach as we load the resources before to create a KieSession and fire the rules. To be able to do increment, the approach that you mention is the way to go. I have also created an example where the KieModule is created using a programming approach -- *https://github.com/cmoulliard/droolsjbpm-osgi-examples/blob/master/simple-external-resource/src/main/java/org/drools/example/osgi/FetchExternalResourceOsgiActivator.java https://github.com/cmoulliard/droolsjbpm-osgi-examples/blob/master/simple-external-resource/src/main/java/org/drools/example/osgi/FetchExternalResourceOsgiActivator.java. That should not be difficult to adapt it to support increment* 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? I need that Mario Fusco or Marc Proctor confirm what I will say here (or somebody) else but I suspect that if you create a session on the KieContainer level and not on the KieBase could allow you to support increment as this unit test show you ( https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java#L660) without having to recreate a new session (stateless) 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. I have no ideas if my modifications will be merged with 6.0.x release. Mario Fusco should be able to provide a response Regards, On Thu, Jan 23, 2014 at 6:01 PM, jhusby husby...@umn.edu wrote: I actually looked through your example project yesterday; very helpful!!! However, there are a few things I'm not sure are compatible with what I'm trying to do. 1. I need to rebuild the rules on the fly, so I was using examples from the IncrementalCompilationTest.java https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test/java/org/drools/compiler/integrationtests/IncrementalCompilationTest.java to accomplish that task. However, those tests don't use a classpath container... can I still rebuild a KieModule via runtime code when running in a classpathContainer? 2. Your example code calls .newKieSession() on a kbase object as opposed to a kContainer object. Is there a reason why? If I create a new KieSession from a kbase vs. kContainer, will I still be able to rebuild the kjar dynamically in the code and keep using the same stateful session? 3. It looks like I'll have to wait until Drools 6.1.0 to get the parameter to specify a classloader when creating the container? I see you just added that recently. I've tried using Thread.currentThread().setContextClassLoader(...) but can't seem to make that work with Drools 6.0.1 in Karaf 2.3.3 because then RuleBaseConfiguration sets the classloader and uses it to try resolving org.drools.core.conflict.DepthConflictResolver, which it can't do because it's no longer using the OSGi classloader. Thank you, Joseph Charles Moulliard-2 wrote Hi Joseph, I propose that you have a look to this example
