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<p class=MsoNormal>Hi All,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a simple CEP test case which I am working through. I
am currently getting a NullPointerException in the Consequence and have no idea
why.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'><b>Rule:<br>
</b><b><span style='font-size:10.0pt;font-family:"Courier New";color:#960000'>rule</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"Param
Update Event Rule"</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span style='font-size:
10.0pt;font-family:"Courier New";color:#960000'>when</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> $pue :
ParameterUpdateEvent(name == </span><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>"testParam2"</span><span style='font-size:
10.0pt;font-family:"Courier New";color:black'>, $param : param) </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000'>from</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> entry-point </span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"ParamUpdateStream"</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span style='font-size:
10.0pt;font-family:"Courier New";color:#960000'>then</span></b><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><span
style='font-size:10.0pt;font-family:"Courier New";color:olive'>#System.out.println("Param
'" + $pue.getName() + "' has been updated to " +
$pue.getValue());</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> System.out.println(</span><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"HERE!!!
"</span><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> + $param + </span><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>" " + $param.name()</span><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>);</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'>End<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b>Exception & Debug:<o:p></o:p></b></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT ASSERTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@1265109
factId: 2</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT RETRACTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@1265109
factId: 2</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT ASSERTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@5e8d7d
factId: 3</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT RETRACTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@5e8d7d
factId: 3</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>ACTIVATION CREATED rule:Param Update
Event Rule activationId:Param Update Event Rule [4, 0] declarations:
$pue=ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@19b4748(4);
$param=ie.PocketKings.SystemsManagement.Alerting.Parameter@2431b9(4)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>Exception in thread "Thread-3" </span><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>BEFORE
ACTIVATION FIRED rule:Param Update Event Rule activationId:Param Update Event
Rule [4, 0] declarations:
$pue=ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@19b4748(4);
$param=ie.PocketKings.SystemsManagement.Alerting.Parameter@2431b9(4)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT RETRACTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@19b4748
factId: 4</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>OBJECT ASSERTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@19b4748
factId: -1</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>org.drools.runtime.rule.ConsequenceException</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>: </span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>java.lang.NullPointerException</span></u><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>DefaultConsequenceExceptionHandler.java:23</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.DefaultAgenda.fireActivation(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>DefaultAgenda.java:943</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.DefaultAgenda.fireNextItem(</span><u><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>DefaultAgenda.java:885</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at org.drools.common.DefaultAgenda.fireUntilHalt(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>DefaultAgenda.java:1065</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.AbstractWorkingMemory.fireUntilHalt(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>AbstractWorkingMemory.java:701</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.AbstractWorkingMemory.fireUntilHalt(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>AbstractWorkingMemory.java:678</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>StatefulKnowledgeSessionImpl.java:195</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
ie.PocketKings.SystemsManagement.Alerting.SessionRunner.run(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>SessionRunner.java:13</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at java.lang.Thread.run(Unknown
Source)</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>Caused by: </span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>java.lang.NullPointerException</span></u><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.base.ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent6011238$getParam.getValue(Unknown
Source)</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.base.ClassFieldReader.getValue(</span><u><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>ClassFieldReader.java:91</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.rule.Declaration.getValue(</span><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>Declaration.java:244</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
ie.PocketKings.SystemsManagement.Alerting.Rule_Param_Update_Event_Rule_0ConsequenceInvoker.evaluate(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>Rule_Param_Update_Event_Rule_0ConsequenceInvoker.java:16</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.DefaultAgenda.fireActivation(</span><u><span
style='font-size:10.0pt;font-family:"Courier New";color:navy'>DefaultAgenda.java:934</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> ... 7 more</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>OBJECT ASSERTED
value:ie.PocketKings.SystemsManagement.Alerting.ParameterUpdateEvent@19fdbcb
factId: 5<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>Could it be that my Event object is getting destroyed before the
consequence is run, is that what “OBJECT RETRACKED” means in this
case?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> Glenn</span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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