From f1240134b185fe2f7c097cfce52605a89dee720f Mon Sep 17 00:00:00 2001
From: Konstantin Bulenkov <kb@jetbrains.com>
Date: Thu, 20 Feb 2014 12:59:20 +0100
Subject: [PATCH] NPE fix

---
 .../com/intellij/usages/impl/UsageViewTreeCellRenderer.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/usageView/src/com/intellij/usages/impl/UsageViewTreeCellRenderer.java b/platform/usageView/src/com/intellij/usages/impl/UsageViewTreeCellRenderer.java
index 25ef683725d8..a4f6e9dd5779 100644
--- a/platform/usageView/src/com/intellij/usages/impl/UsageViewTreeCellRenderer.java
+++ b/platform/usageView/src/com/intellij/usages/impl/UsageViewTreeCellRenderer.java
@@ -245,7 +245,8 @@ class UsageViewTreeCellRenderer extends ColoredTreeCellRenderer {
     }
     pref.width = Math.max(visibleRect.width, pref.width);
     myRowBoundsCalled = true;
-    final Rectangle bounds = getTree().getRowBounds(row);
+    final JTree tree = getTree();
+    final Rectangle bounds = tree == null ? null : tree.getRowBounds(row);
     myRowBoundsCalled = false;
     int y = bounds == null ? 0 : bounds.y;
     TextRange vis = TextRange.from(Math.max(0, visibleRect.y - pref.height), visibleRect.height + pref.height * 2);