[jbossts-issues] [JBoss JIRA] (JBTM-924) recovery leaks xaresources

[Jonathan Halliday (Created) (JIRA)]

recovery leaks xaresources
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                 Key: JBTM-924
                 URL: https://issues.jboss.org/browse/JBTM-924
             Project: JBoss Transaction Manager
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Recovery
    Affects Versions: 5.0.0.M1, 4.15.3, 4.6.1.CP12
            Reporter: Jonathan Halliday
            Assignee: Jonathan Halliday
             Fix For: 4.6.1.CP13, 4.15.4, 5.0.0.M2


XARecoveryModule._xidScans may grow without limit in cases where an xa recovery plugin is both a) returning new XAResources rather than validiating and reusing the previous one and b) the isSameRM implementation provided by the driver is unable to recognize the equivalence of two such XAResources.
To prevent such leakage we should remove any scan entries that have not been updated recently, thus ensuring expiration of entries that are not refreshed by the refreshXidScansForEquivalentXAResourceImpl correlation mechanism.

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