tmf: Fix IllegalArgumentException in TimeGraphCombo

[deliverable/tracecompass.git] / tmf / org.eclipse.tracecompass.tmf.ui / src / org / eclipse / tracecompass / tmf / ui / widgets / timegraph / TimeGraphCombo.java

diff --git a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/widgets/timegraph/TimeGraphCombo.java b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/widgets/timegraph/TimeGraphCombo.java
index 11d916eb1c981c7da44991ab12df84dafc10243e..42d45a01a110fe36828a6ee73dfc784431725ec7 100644 (file)
--- a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/widgets/timegraph/TimeGraphCombo.java
+++ b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/widgets/timegraph/TimeGraphCombo.java
@@ -1240,7 +1240,9 @@ public class TimeGraphCombo extends Composite {
                 if (SWT.getPlatform().equals("gtk")) { //$NON-NLS-1$
                     TreeItem topItem = tree.getTopItem();
                     tree.getDisplay().asyncExec(() -> {
-                        tree.setTopItem(topItem);
+                        if (!tree.isDisposed() && !topItem.isDisposed()) {
+                            tree.setTopItem(topItem);
+                        }
                     });
                 }
             }