From: amwaterhouse <Andrew Waterhouse>
Date: Fri, 27 Apr 2007 14:43:36 +0000 (+0000)
Subject: Make sure mainContainer and owner are not null
X-Git-Tag: Release_2_3~128
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=a3e7e0f868ce9911e1b0140bfef1ca2bc662f1e6;p=jalview.git

Make sure mainContainer and owner are not null
---

diff --git a/src/jalview/appletgui/Tooltip.java b/src/jalview/appletgui/Tooltip.java
index 90f2e97..7de5193 100755
--- a/src/jalview/appletgui/Tooltip.java
+++ b/src/jalview/appletgui/Tooltip.java
@@ -137,6 +137,10 @@ public class Tooltip
 
   void setTipLocation(MouseEvent evt)
   {
+    if(mainContainer==null || owner==null)
+    {
+      return;
+    }
     setLocation( (owner.getLocationOnScreen().x
                   - mainContainer.getLocationOnScreen().x) + evt.getX(),
                 (owner.getLocationOnScreen().y -