[kepler-dev] [Bug 4310] New: - ValueListeners receive valueChanged events when values have not changed

[bugzilla-daemon at ecoinformatics.org]

http://bugzilla.ecoinformatics.org/show_bug.cgi?id=4310

           Summary: ValueListeners receive valueChanged events when values
                    have not changed
           Product: Kepler
           Version: 1.x dev
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: general
        AssignedTo: berkley at nceas.ucsb.edu
        ReportedBy: crawl at sdsc.edu
         QAContact: kepler-dev at kepler-project.org


A ValueListener sometimes receives events for a Settable when the Settable's
value has not changed. This can lead to a stack overflow since reading the
value of the Settable may generate another valueChanged event.

To fix this, valueChanged not be called unless the value has actually changed.