[Jboss-svn-commits] NullPointerException

[Liliana P. <lil...@gm...>]

 Consider the following files :

1)Dynamo_rules_test.java
2)Manager.java
3) ForAllManager.java
4)BooleanWrapper.java
5)StringWrapper.java
6)NumberWrapper.java
 -----------------------------------------------------
and consider two simple rules:

rule "Regola 3"
agenda-group "b2";
salience 3;
no-loop true;
when
f2 : ForAllManager( id == "b2") &&
n1 : NumberWrapper(id=="n1") &&
eval(n1.getValue() < 100)
then
System.out.println(n1.getValue()); retract(n1);
 if (f2.getCursor().hasNextSelection() == true)  f2.esegui();
  else {
     assert (new BooleanWrapper(f2.getId(),true); retract(f2);}
end

rule "Regola 3.x"
agenda-group "b2";
salience 3;
no-loop true;
 when f2: ForAllManager( id == "b2") &&
n1 : NumberWrapper(id== "n1") &&
eval(!(n1.getValue() < 100))
then
assert(new BooleanWrapper(f2.getId(),false));
retract(n1); retract(f2);
end


When the system has to assert the object BooleanWrapper in the
WorkingMemory, I get the following errors:

 java.lang.NullPointerException at
org.drools.rule.BoundVariableConstraint.isAllowed(Unknown Source) at
org.drools.common.BetaNodeBinder.isAllowed(Unknown Source) at
org.drools.reteoo.LeftInputAdapterNode.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.base.DefaultKnowledgeHelper.assertObject(Unknown Source) at
org.drools.base.DefaultKnowledgeHelper.assertObject(Unknown Source) at
it.polimi.forAllAnnidati.Rule_Regola_3_x_0.consequence(Rule_Regola_3_x_0.java:12)
at it.polimi.forAllAnnidati.Rule_Regola_3_x_0ConsequenceInvoker.evaluate(Rule_Regola_3_x_0ConsequenceInvoker.java:24)
at org.drools.common.DefaultAgenda.fireActivation(Unknown Source) at
org.drools.common.DefaultAgenda.fireNextItem(Unknown Source) at
org.drools.common.AbstractWorkingMemory.fireAllRules(Unknown Source) at
org.drools.common.AbstractWorkingMemory.fireAllRules(Unknown Source) at
it.polimi.forAllAnnidati.ForAllManager.esegui(ForAllManager.java:118) at
it.polimi.forAllAnnidati.ForAllManager.esegui(ForAllManager.java:107) at
it.polimi.forAllAnnidati.Manager.esegui(Manager.java:126) at
it.polimi.forAllAnnidati.Dynamo_rules_test.main(Dynamo_rules_test.java:56)
Exception in thread "main" org.drools.spi.ConsequenceException:
java.lang.NullPointerException at
org.drools.common.DefaultAgenda.fireActivation(Unknown Source) at
org.drools.common.DefaultAgenda.fireNextItem(Unknown Source) at
org.drools.common.AbstractWorkingMemory.fireAllRules(Unknown Source) at
org.drools.common.AbstractWorkingMemory.fireAllRules(Unknown Source) at
it.polimi.forAllAnnidati.ForAllManager.esegui(ForAllManager.java:118) at
it.polimi.forAllAnnidati.ForAllManager.esegui(ForAllManager.java:107) at
it.polimi.forAllAnnidati.Manager.esegui(Manager.java:126) at
it.polimi.forAllAnnidati.Dynamo_rules_test.main(Dynamo_rules_test.java:56)
Caused by: java.lang.NullPointerException at
org.drools.rule.BoundVariableConstraint.isAllowed(Unknown Source) at
org.drools.common.BetaNodeBinder.isAllowed(Unknown Source) at
org.drools.reteoo.LeftInputAdapterNode.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.base.DefaultKnowledgeHelper.assertObject(Unknown Source) at
org.drools.base.DefaultKnowledgeHelper.assertObject(Unknown Source) at
it.polimi.forAllAnnidati.Rule_Regola_3_x_0.consequence(Rule_Regola_3_x_0.java:12)
at it.polimi.forAllAnnidati.Rule_Regola_3_x_0ConsequenceInvoker.evaluate(Rule_Regola_3_x_0ConsequenceInvoker.java:24)
... 8 more


Any ideas???
Liliana