[jboss-jira] [JBoss JIRA] (DROOLS-752) Incremental update leaks globals

[Duncan Doyle (JIRA)]

Duncan Doyle created DROOLS-752:
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             Summary: Incremental update leaks globals
                 Key: DROOLS-752
                 URL: https://issues.jboss.org/browse/DROOLS-752
             Project: Drools
          Issue Type: Feature Request
          Components: core engine
    Affects Versions: 6.2.0.Final
         Environment: Mac OS X 10.10.2, Oracle Hotspot 1.7.0_71
            Reporter: Duncan Doyle
            Assignee: Mario Fusco


The incremental update feature of Drools allows me to incrementally update not only the KieBase, but also the KieSession. I have a use-case where my updated rules have different globals defined (different classes) than the original rules, with different names.

When I set a global on a KieSession, Drools explicitly checks whether that global is defined in the KieBase, and if not, it will throw an error. However, when I incrementally update the KieBase, and a global is removed from the rulebase, that global is not removed from the MapGlobalResolver map, potentially causing issues (e.g. memory leaks).

When a session is incrementally updated, and globals are no longer defined in the new rule-base, they should be removed from the MapGlobalResolver.

See reproducer here: http://www.github.com/DuncanDoyle/drools-incremental-update-globals-leak

Clone the repo and run 'mvn clean test'.



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