From 91d037fc5b2529d20f4ba73a5f15bb4fca8e71b5 Mon Sep 17 00:00:00 2001
From: Roman Shevchenko <roman.shevchenko@jetbrains.com>
Date: Tue, 6 Dec 2011 13:39:41 +0100
Subject: [PATCH] EA-30993 (ignore occasional mouse miss)

---
 .../com/intellij/codeInsight/hint/LineTooltipRenderer.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/codeInsight/hint/LineTooltipRenderer.java b/platform/platform-impl/src/com/intellij/codeInsight/hint/LineTooltipRenderer.java
index 969e6c34182e..12a6fbd7e3ff 100644
--- a/platform/platform-impl/src/com/intellij/codeInsight/hint/LineTooltipRenderer.java
+++ b/platform/platform-impl/src/com/intellij/codeInsight/hint/LineTooltipRenderer.java
@@ -273,7 +273,9 @@ public class LineTooltipRenderer extends ComparableObject.Impl implements Toolti
   }
 
   private static void locateOutsideMouseCursor(Editor editor, JComponent editorComponent, Point p, int width, int height, int heightLimit) {
-    Point mouse = MouseInfo.getPointerInfo().getLocation();
+    PointerInfo pointerInfo = MouseInfo.getPointerInfo();
+    if (pointerInfo == null) return;
+    Point mouse = pointerInfo.getLocation();
     SwingUtilities.convertPointFromScreen(mouse, editorComponent);
     Rectangle tooltipRect = new Rectangle(p, new Dimension(width, height));
     // should show at least one line apart