[jboss-jira] [JBoss JIRA] Created: (JBRULES-2511) Entry-Points can cause NullPointerException and/or no rule firing

[Ví­tor Moreira (JIRA)]

Entry-Points can cause NullPointerException and/or no rule firing
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                 Key: JBRULES-2511
                 URL: https://jira.jboss.org/jira/browse/JBRULES-2511
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 5.1.0.M2
         Environment: Windows 7 (32bits)
Eclipse 3.4
Drools Eclipse Plugin 5.1.0.SNAPSHOT
JDK 1.6 U18 (32bits)
            Reporter: Ví­tor Moreira
            Assignee: Mark Proctor


I've got a system that receives transactions. I want to implement the followinf rules:
- raise an alarm(alarm event) when there aren't any transaction for an hour (or more);
- if there's an alarm, no more alarms should be raised;
- if there's an alarm and the system receives a transaction, that alarm should be retracted and the system should send an recovery event.

I've implemented the rules this way:
- ***start*** rule to insert an "EngineStart" event when the rules engine starts
- ***notrx_after_start*** rule to detect absence of transactions during the first hour
- ***notrx_after_trx*** rule to detect absence of transactions (during one hour) after last transaction
- ***rearm*** rule to detect transactions and rearm the system.

I made a Maven project with junits, which inserts transactions at specific time, in order to raise the desired events.

Two set of tests were made:
- the rules defined in "default" entry-point: the correspondent junit gives a NullPointerException in DefaultAgenda
- the rules defined in "incoming" entry-point: the correspondent junit doesn't activate the ***rearm*** rule


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