tmf: Fix IllegalArgumentException in TimeGraphCombo

Change-Id: I4e2dcba654d1da9b0fa41c7686b0a0095506f28c
Signed-off-by: Patrick Tasse <patrick.tasse@gmail.com>
Reviewed-on: https://git.eclipse.org/r/63663
Reviewed-by: Hudson CI
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

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);
+                        }
                     });
                 }
             }