From b061b1590bd702871d09ec60e33831a2af65ec38 Mon Sep 17 00:00:00 2001
From: paulby <paulby@dev.java.net>
Date: Tue, 23 Jan 2007 16:51:52 +0000
Subject: Fix issue 437 (NPE)

git-svn-id: https://svn.java.net/svn/j3d-core-utils~svn/trunk@147 9497e636-51bd-65ba-982d-a4982e1767a5
---
 .../share/com/sun/j3d/utils/scenegraph/io/retained/SymbolTable.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/classes/share/com/sun/j3d/utils/scenegraph/io/retained/SymbolTable.java b/src/classes/share/com/sun/j3d/utils/scenegraph/io/retained/SymbolTable.java
index 4ade79a..e5b442e 100644
--- a/src/classes/share/com/sun/j3d/utils/scenegraph/io/retained/SymbolTable.java
+++ b/src/classes/share/com/sun/j3d/utils/scenegraph/io/retained/SymbolTable.java
@@ -698,7 +698,8 @@ public class SymbolTable extends java.lang.Object implements SceneGraphObjectRef
      * Add all the named objects in <code>map</code>
      */
     public void addNamedObjects( HashMap map ) {
-        namedObjects.putAll( map );
+        if (map!=null)
+            namedObjects.putAll( map );
     }
     
     /**
-- 
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