6:17 p.m.
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Mark Proctor
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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8:03 p.m.
New subject: [JBoss JIRA] Assigned: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=all ]
Edson Tirelli reassigned JBRULES-459:
-------------------------------------
Assignee: Edson Tirelli (was: Mark Proctor)
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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8:33 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=comments#action_12342337 ]
Edson Tirelli commented on JBRULES-459:
---------------------------------------
Serge,
We found the problem, but in order to properly create the tests, I would like to know if
you can show us the source for the Result class, more specifically your getValue()
method.
I'm gessing he returns an array, but I would like to be sure.
Thanks
Edson
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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-
If you think it was sent incorrectly contact one of the administrators:
http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
9:21 a.m.
New subject: [JBoss JIRA] Resolved: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=all ]
Edson Tirelli resolved JBRULES-459.
-----------------------------------
Fix Version/s: 3.0.5
Resolution: Done
There were actually 2 problems:
1. The NPE on ArrayEqualEvaluator
2. Proper support for array attributes in ClassFieldExtractorFactory generated classes
Fixed both and added tests. Although, I would still like to see the code for the
Result.getValue() method to make sure I didn't missed any scenario.
Commited to 3.0.x branch in revision #6018:
----------------
Sending drools-compiler/src/test/java/org/drools/Primitives.java
Sending
drools-compiler/src/test/java/org/drools/integrationtests/IntegrationCases.java
Sending
drools-compiler/src/test/resources/org/drools/integrationtests/null_constraint.drl
Sending drools-core/src/main/java/org/drools/base/ClassFieldExtractorFactory.java
Sending drools-core/src/main/java/org/drools/base/evaluators/ArrayFactory.java
Sending drools-core/src/test/java/org/drools/base/ClassFieldExtractorTest.java
Sending drools-core/src/test/java/org/drools/base/EvaluatorFactoryTest.java
Sending drools-core/src/test/java/org/drools/util/asm/TestBean.java
Transmitting file data ........
Committed revision 6018.
----------------
Commited to trunk in revision #6019:
----------------
Sending drools-compiler/src/test/java/org/drools/Primitives.java
Sending
drools-compiler/src/test/java/org/drools/integrationtests/IntegrationCases.java
Sending
drools-compiler/src/test/resources/org/drools/integrationtests/null_constraint.drl
Sending drools-core/src/main/java/org/drools/base/ClassFieldExtractorFactory.java
Sending drools-core/src/main/java/org/drools/base/evaluators/ArrayFactory.java
Sending drools-core/src/test/java/org/drools/base/ClassFieldExtractorTest.java
Sending drools-core/src/test/java/org/drools/base/EvaluatorFactoryTest.java
Sending drools-core/src/test/java/org/drools/util/asm/TestBean.java
Transmitting file data ........
Committed revision 6019.
----------------
Thanks for reporting and please let me know if you have any other problem.
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
Fix For: 3.0.5
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
10:19 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=comments#action_12342353 ]
Serge Brisson commented on JBRULES-459:
---------------------------------------
Result.getValue() returns a Serializable.
In fact, Result is an Interface. The actual instance is a BasicResult which inherits from
a BasicValue.
You can browse all this at:
http://svn.sourceforge.net/viewvc/rvpf/trunk/rules/src/java/org/rvpf/rules/
I will verify what is the actual class of the instance returned by Result.getValue() when
the NPE occurs and report here later.
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
Fix For: 3.0.5
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
10:59 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=comments#action_12342362 ]
Serge Brisson commented on JBRULES-459:
---------------------------------------
After further investigation, I can tell you that before the NPE, Result.getValue() has
been called twice for the same Result instance, returning a null value each time.
Stack trace of the first call:
at org.rvpf.rules.BasicResult.getValue(BasicResult.java:92)
at org.drools.base.org.rvpf.rules.Result$getValue.getValue(Unknown Source)
at org.drools.base.ClassFieldExtractor.getValue(Unknown Source)
at org.drools.reteoo.AlphaNodeSwitch.getNode(Unknown Source)
at org.drools.reteoo.HashedObjectSinkList$1.hasNext(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
Stack trace of the second call:
at org.rvpf.rules.BasicResult.getValue(BasicResult.java:92)
at org.drools.base.org.rvpf.rules.Result$getValue.getValue(Unknown Source)
at org.drools.base.ClassFieldExtractor.getValue(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The NPE occurs after that.
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
Fix For: 3.0.5
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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12:15 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=comments#action_12342367 ]
Edson Tirelli commented on JBRULES-459:
---------------------------------------
Serge,
Thanks for the answers. Could you please try the current 3.0.x branch and check if the fix
worked for your specific case?
From your original stacktrace:
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
We can see that the NPE was raised when comparing Array types, and there was indeed a
problem there that was fixed. But better to test and be sure.
Regards
Edson
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
Fix For: 3.0.5
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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1:05 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-459) Literal constraint using 'null' triggers a NPE.
[ http://jira.jboss.com/jira/browse/JBRULES-459?page=comments#action_12342370 ]
Serge Brisson commented on JBRULES-459:
---------------------------------------
Edson,
As you suggested, I rebuilt the jars from the current 3.0.x branch.
The NPE is now gone and my tests ran successfully: my problem is indeed fixed.
Thank you for your support.
Serge
Literal constraint using 'null' triggers a NPE.
-----------------------------------------------
Key: JBRULES-459
URL: http://jira.jboss.com/jira/browse/JBRULES-459
Project: JBoss Rules
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 3.0.4
Environment: Windows XP SP2.
Reporter: Serge Brisson
Assigned To: Edson Tirelli
Fix For: 3.0.5
The following triggers the problem:
rule "Drops null results"
when
$result: Result(value == null)
then
retract($result);
end
Stack trace:
java.lang.NullPointerException
at org.drools.base.evaluators.ArrayFactory$ArrayEqualEvaluator.evaluate(Unknown Source)
at org.drools.rule.LiteralConstraint.isAllowed(Unknown Source)
at org.drools.reteoo.AlphaNode.assertObject(Unknown Source)
at org.drools.reteoo.ObjectSource.propagateAssertObject(Unknown Source)
at org.drools.reteoo.ObjectTypeNode.assertObject(Unknown Source)
at org.drools.reteoo.Rete.assertObject(Unknown Source)
at org.drools.reteoo.ReteooRuleBase.assertObject(Unknown Source)
at org.drools.reteoo.ReteooWorkingMemory.doAssertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.common.AbstractWorkingMemory.assertObject(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at org.drools.jsr94.rules.StatelessRuleSessionImpl.executeRules(Unknown Source)
at
org.rvpf.rules.ServiceProviderTests.testStatelessSession(ServiceProviderTests.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:552)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:411)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:785)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:114)
at org.testng.TestRunner.privateRun(TestRunner.java:695)
at org.testng.TestRunner.run(TestRunner.java:574)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:241)
at org.testng.SuiteRunner.run(SuiteRunner.java:145)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:901)
at org.testng.TestNG.runSuitesLocally(TestNG.java:863)
at org.testng.TestNG.run(TestNG.java:613)
at org.rvpf.tests.FrameworkTests.main(FrameworkTests.java:132)
The following is a successful work-around:
rule "Drops null results"
when
$result: Result()
eval($result.getValue() == null)
then
retract($result);
end
--
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-
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7215
days inactive
7216
days old
7 comments
2 participants
participants (2)
-
Edson Tirelli (JIRA) -
Serge Brisson (JIRA)