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Bug
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Resolution: Done
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Major
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6.0.0.Final, 6.0.1.Final
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None
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None
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The base environment is the same as DefaultKieSessionExample.
See attached maven project for details.
If I reuse a KieSession for multiple times, it seems to forget about the function defined in the DRL file.
DRL:
package org.drools.example.api.defaultkiesession.Hal1
import org.drools.example.api.defaultkiesession.Message
function boolean alwaysTrue() {
return true;
}
rule "rule 1" when
m : Message( )
then
retract(m);
end
rule "rule 2" when
Message( alwaysTrue(), text == "Hello, HAL. Do you read me, HAL?" )
then
insert( new Message("HAL", "Dave. I read you." ) );
end
Java code:
package org.drools.example.api.defaultkiesession;
import org.kie.api.KieServices;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;
public class DefaultKieSessionExample
{
static int counter = 0;
public void failCase1()
{
KieServices ks = KieServices.Factory.get();
KieContainer kContainer = ks.getKieClasspathContainer();
KieSession kSession = kContainer.newKieSession();
for( counter = 0; counter < 10000; ++counter) {
kSession.insert(new Message("Dave", "Hello, HAL. Do you read me, HAL?"));
kSession.fireAllRules();
if (kSession.getFactCount() != 0) {
System.err.println("error");
}
}
}
public static void main(String[] args)
{
try {
DefaultKieSessionExample defaultKieSessionExample = new DefaultKieSessionExample();
defaultKieSessionExample.failCase1();
} catch (NoClassDefFoundError error) {
System.err.println("Failed after "+counter+" testcases");
error.printStackTrace();
}
}
}
Runs fine for some iterations, and after a while an exception happens:
java.lang.NoClassDefFoundError: org/drools/example/api/defaultkiesession/Hal1/AlwaysTrue at ConditionEvaluator19fe4e382c304060b0046f5cdc6a59fa.evaluate(Unknown Source) at org.drools.core.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:217) at org.drools.core.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:174) at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:134) at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:502) at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:387) at org.drools.core.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:288) at org.drools.core.reteoo.EntryPointNode.assertObject(EntryPointNode.java:260) at org.drools.core.common.NamedEntryPoint.insert(NamedEntryPoint.java:360) at org.drools.core.common.NamedEntryPoint.insert(NamedEntryPoint.java:279) at org.drools.core.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1148) at org.drools.core.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1092) at org.drools.core.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:308) at org.drools.example.api.defaultkiesession.DefaultKieSessionExample.failCase1(DefaultKieSessionExample.java:17) at org.drools.example.api.defaultkiesession.DefaultKieSessionExample.main(DefaultKieSessionExample.java:29) Caused by: java.lang.ClassNotFoundException: org.drools.example.api.defaultkiesession.Hal1.AlwaysTrue at org.drools.core.common.ProjectClassLoader.tryDefineType(ProjectClassLoader.java:123) at org.drools.core.common.ProjectClassLoader.loadType(ProjectClassLoader.java:114) at org.drools.core.common.ProjectClassLoader.loadClass(ProjectClassLoader.java:84) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 15 more
