From fde6807afb7d35ea059c51c5c811b7f3297772a5 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Fri, 26 Jan 2007 17:30:07 +0000
Subject: [PATCH] If its null, set tip empty

---
 src/jalview/appletgui/Tooltip.java |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/jalview/appletgui/Tooltip.java b/src/jalview/appletgui/Tooltip.java
index 76c0047..9306e3d 100755
--- a/src/jalview/appletgui/Tooltip.java
+++ b/src/jalview/appletgui/Tooltip.java
@@ -102,6 +102,11 @@ public class Tooltip extends Canvas implements MouseListener,
 
         void setTip(String tip)
         {
+          if(tip==null)
+          {
+            setTip("");
+            return;
+          }
           fm = getFontMetrics(owner.getFont());
           fontHeight = fm.getHeight();
 
-- 
1.7.10.2