Potential fix for pull request finding 'Dereferenced variable may be null'

QilongTang · github-code-quality[bot] · web-flow · commit 98c7e714cc45 · 2026-01-30T09:56:37.000-05:00
Co-authored-by: Copilot Autofix powered by AI &lt;223894421+github-code-quality[bot]@users.noreply.github.com&gt;
diff --git a/src/DynamoCore/Core/PulseMaker.cs b/src/DynamoCore/Core/PulseMaker.cs
@@ -156,7 +156,7 @@ protected virtual void Dispose(bool disposing)
                     lock (stateMutex)
                     {
                         // Stop the timer before disposing
-                        if (TimerPeriod > 0)
+                        if (internalTimer != null && TimerPeriod > 0)
                         {
                             TimerPeriod = 0;
                             evaluationRequestPending = false;

Original file line number	Diff line number	Diff line change
`@@ -156,7 +156,7 @@ protected virtual void Dispose(bool disposing)`
`156`	`156`	`lock (stateMutex)`
`157`	`157`	`{`
`158`	`158`	`// Stop the timer before disposing`
`159`		`- if (TimerPeriod > 0)`
	`159`	`+ if (internalTimer != null && TimerPeriod > 0)`
`160`	`160`	`{`
`161`	`161`	`TimerPeriod = 0;`
`162`	`162`	`evaluationRequestPending = false;`