tmf.ui: Make TmfTimeViewer handlers parameters nullable

[deliverable/tracecompass.git] / tmf / org.eclipse.tracecompass.tmf.ui / src / org / eclipse / tracecompass / tmf / ui / viewers / tree / AbstractTmfTreeViewer.java

diff --git a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/tree/AbstractTmfTreeViewer.java b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/tree/AbstractTmfTreeViewer.java
index 3c78e7951b430053a8729ee6226e7044a93525e9..77002a3cf622a8ff74a909b5dee57d0258df219e 100644 (file)
--- a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/tree/AbstractTmfTreeViewer.java
+++ b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/tree/AbstractTmfTreeViewer.java
@@ -489,7 +489,7 @@ public abstract class AbstractTmfTreeViewer extends TmfTimeViewer {
     @TmfSignalHandler
     public void selectionRangeUpdated(TmfSelectionRangeUpdatedSignal signal) {
         super.selectionRangeUpdated(signal);
-        if ((signal.getSource() != this) && (getTrace() != null)) {
+        if (signal != null && (signal.getSource() != this) && (getTrace() != null)) {
             updateContent(this.getSelectionBeginTime(), this.getSelectionEndTime(), true);
         }
     }