LT-22388: Fix NullReferenceException in UnitOfWorkService.SaveOnIdle #361
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Add an early IsDisposed check to prevent accessing UI state (LastActivityTime) when the service has been disposed but the timer event still fires.
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Pull request overview
This PR fixes a NullReferenceException that occurs when the UnitOfWorkService's SaveOnIdle timer callback accesses the UI state (LastActivityTime) after the service has been disposed. The fix adds an early IsDisposed check after acquiring the lock but before accessing m_ui, preventing the exception from occurring.
Changes:
- Added IsDisposed check in SaveOnIdle method to prevent accessing m_ui.LastActivityTime when disposed
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jtmaxwell3
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Jan 30, 2026
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Add an early IsDisposed check to prevent accessing UI state (LastActivityTime) when the service has been disposed but the timer event still fires.
This change is