7:09 a.m.
I am using global slf4j log4j logger as a global variable within our drl and
inserting that global logger value at runtime into kiesession. While we are
trying to do logger.info with multiple arguments then it's giving the
following exception stack trace -
Exception executing consequence for rule "Test Logger 2" in
test.rules.system: java.lang.RuntimeException: cannot invoke method: info
at
org.drools.core.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at
org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1027)
at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:129)
at
org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:71)
at
org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:935)
at
org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1200)
at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:952)
at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:926)
at
org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:232)
at
test.platform.rules.executor.service.impl.RuleExecutorServiceImplTest.testExecuteRule(RuleExecutorServiceImplTest.java:230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.RuntimeException: cannot invoke method: info
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:63)
at
org.mvel2.optimizers.impl.refl.nodes.VariableAccessor.getValue(VariableAccessor.java:37)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:86)
at
org.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119)
at org.mvel2.MVEL.executeExpression(MVEL.java:930)
at
org.drools.core.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:107)
at
org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1016)
... 36 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:140)
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:48)
... 44 more
Example: My drl file looks like this -
package test.system.rule;
import test.platform.model.*;
import org.slf4j.Logger;
global Logger logger;
rule "Test Logger 1"
when
then
logger.info("within test logger 1");
end
rule "Test Logger 2"
when
then
logger.info("within test logger 2. Rule fired {}",
drools.getRule().getName());
end
While rules are firing then the first logger is getting printed into console
but second one is not getting printed and giving the above exception to me.
--
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9:08 a.m.
Check if the logger isn't null (by adding a System.out in the then part
of the rule).
If that's the case, then that error message is pretty poor (or even
incorrect):
java.lang.RuntimeException: cannot invoke method: info
It should clearly talk about a NullPointer instead.
So, if that's the case, create a jira issue.
https://issues.jboss.org/browse/DROOLS
On 27-05-14 07:09, Soumya.plavaga wrote:
I am using global slf4j log4j logger as a global variable within our
drl and
inserting that global logger value at runtime into kiesession. While we are
trying to do logger.info with multiple arguments then it's giving the
following exception stack trace -
Exception executing consequence for rule "Test Logger 2" in
test.rules.system: java.lang.RuntimeException: cannot invoke method: info
at
org.drools.core.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at
org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1027)
at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:129)
at
org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:71)
at
org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:935)
at
org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1200)
at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:952)
at
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:926)
at
org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:232)
at
test.platform.rules.executor.service.impl.RuleExecutorServiceImplTest.testExecuteRule(RuleExecutorServiceImplTest.java:230)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.RuntimeException: cannot invoke method: info
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:63)
at
org.mvel2.optimizers.impl.refl.nodes.VariableAccessor.getValue(VariableAccessor.java:37)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:86)
at
org.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123)
at
org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119)
at org.mvel2.MVEL.executeExpression(MVEL.java:930)
at
org.drools.core.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:107)
at
org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1016)
... 36 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:140)
at
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:48)
... 44 more
Example: My drl file looks like this -
package test.system.rule;
import test.platform.model.*;
import org.slf4j.Logger;
global Logger logger;
rule "Test Logger 1"
when
then
logger.info("within test logger 1");
end
rule "Test Logger 2"
when
then
logger.info("within test logger 2. Rule fired {}",
drools.getRule().getName());
end
While rules are firing then the first logger is getting printed into console
but second one is not getting printed and giving the above exception to me.
--
View this message in context:
http://drools.46999.n3.nabble.com/Slf4j-Log4j-logger-not-working-with-Dro...
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_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
10:08 a.m.
@Geoffrey: did you see the java.lang.ArrayIndexOutOfBoundsException?
Doesn't look like a null pointer causing an exception. The upstairs
exception might add the basic exceptions's message to its message.
@Soumya: Which Drools version are you using? Basically, this situation
is handled correctly by 5.4 and 5.5.
-W
On 27/05/2014, Geoffrey De Smet <ge0ffrey.spam(a)gmail.com> wrote:
Check if the logger isn't null (by adding a System.out in the
then part
of the rule).
If that's the case, then that error message is pretty poor (or even
incorrect):
java.lang.RuntimeException: cannot invoke method: info
It should clearly talk about a NullPointer instead.
So, if that's the case, create a jira issue.
https://issues.jboss.org/browse/DROOLS
On 27-05-14 07:09, Soumya.plavaga wrote:
> I am using global slf4j log4j logger as a global variable within our drl
> and
> inserting that global logger value at runtime into kiesession. While we
> are
> trying to do logger.info with multiple arguments then it's giving the
> following exception stack trace -
>
> Exception executing consequence for rule "Test Logger 2" in
> test.rules.system: java.lang.RuntimeException: cannot invoke method: info
> at
>
org.drools.core.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
> at
> org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1027)
> at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:129)
> at
> org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:71)
> at
> org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:935)
> at
> org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1200)
> at
>
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:952)
> at
>
org.drools.core.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:926)
> at
>
org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:232)
> at
>
test.platform.rules.executor.service.impl.RuleExecutorServiceImplTest.testExecuteRule(RuleExecutorServiceImplTest.java:230)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
>
org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
> at
>
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
> at
>
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
> at
>
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
> at
>
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> at
>
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
> at
>
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> at
>
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
> at
>
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Caused by: java.lang.RuntimeException: cannot invoke method: info
> at
> org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:63)
> at
>
org.mvel2.optimizers.impl.refl.nodes.VariableAccessor.getValue(VariableAccessor.java:37)
> at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108)
> at org.mvel2.MVELRuntime.execute(MVELRuntime.java:86)
> at
> org.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123)
> at
> org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119)
> at org.mvel2.MVEL.executeExpression(MVEL.java:930)
> at
> org.drools.core.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:107)
> at
> org.drools.core.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1016)
> ... 36 more
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
> at
>
org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.executeAll(MethodAccessor.java:140)
> at
> org.mvel2.optimizers.impl.refl.nodes.MethodAccessor.getValue(MethodAccessor.java:48)
> ... 44 more
>
>
> Example: My drl file looks like this -
>
> package test.system.rule;
>
> import test.platform.model.*;
> import org.slf4j.Logger;
>
> global Logger logger;
>
> rule "Test Logger 1"
>
> when
>
> then
>
> logger.info("within test logger 1");
>
> end
>
> rule "Test Logger 2"
>
> when
>
> then
>
> logger.info("within test logger 2. Rule fired {}",
> drools.getRule().getName());
>
> end
>
>
> While rules are firing then the first logger is getting printed into
> console
> but second one is not getting printed and giving the above exception to
> me.
>
>
>
> --
> View this message in context:
>
http://drools.46999.n3.nabble.com/Slf4j-Log4j-logger-not-working-with-Dro...
> 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
11:44 a.m.
Check if the logger isn't null (by adding a System.out in the
then part
of the rule).
We checked, logger is not null here.
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11:45 a.m.
@Soumya: Which Drools version are you using? Basically, this
situation
is handled correctly by 5.4 and 5.5.
We are using Drools version 6.1.0.Beta2.
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7:23 p.m.
I wonder if OP Soumya solved the issue, because at least in my case it is
indeed working fine - I just tested with 610Final as we also wanted to log
from rule via slf4j.
I attach demo that at least for us proves working.
I've also tried back-port the same project attached to test with 610beta2,
and is working as well at least for me; although you need to be aware switch
the 'packaging' to see the log in eclipse (ref.
https://issues.jboss.org/browse/DROOLS-495)
Am I missing something?
OP Soumya did you solved your issue?
20140805.zip <http://drools.46999.n3.nabble.com/file/n4030572/20140805.zip>
Thanks.
Ciao
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3560
days inactive
3630
days old
5 comments
4 participants
participants (4)
-
Geoffrey De Smet -
Soumya.plavaga -
tari-manga -
Wolfgang Laun