From feb9cb907951b0ba0961742ead6ba0a9a761e27b Mon Sep 17 00:00:00 2001
From: Chien Yang <jada@dev.java.net>
Date: Wed, 28 Nov 2007 18:07:20 +0000
Subject: 1) Completed the fix to issue 540. 2) Minor cleanup.

git-svn-id: https://svn.java.net/svn/j3d-core~svn/trunk@875 ba19aa83-45c5-6ac9-afd3-db810772062c
---
 src/classes/share/javax/media/j3d/GroupRetained.java | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/src/classes/share/javax/media/j3d/GroupRetained.java b/src/classes/share/javax/media/j3d/GroupRetained.java
index b006df0..f69a14b 100644
--- a/src/classes/share/javax/media/j3d/GroupRetained.java
+++ b/src/classes/share/javax/media/j3d/GroupRetained.java
@@ -15,7 +15,6 @@ package javax.media.j3d;
 import java.util.Vector;
 import java.util.Enumeration;
 import java.util.ArrayList;
-import java.util.Hashtable;
 
 /**
  * Group node.
@@ -1089,7 +1088,7 @@ class GroupRetained extends NodeRetained implements BHLeafInterface {
 		    newFogs = new ArrayList();
 		    for (int i = 0; i < localToVworldKeys.length; i++) {
 			newFogs.add(new ArrayList());
-		    };
+		    }
 		}
 		else {
 		    newFogs = new ArrayList();
@@ -1326,18 +1325,18 @@ class GroupRetained extends NodeRetained implements BHLeafInterface {
     
     
     void updatePickable(HashKey keys[], boolean pick[]) {
-	int nchild = children.size()-1;
+	int numChildLessOne = children.size() - 1;
 	super.updatePickable(keys, pick);
 	int i=0;
 	NodeRetained child;
 
         // Fix for issue 540
-        if (children.size()==0) {
+        if (numChildLessOne < 0) {
             return;
         }
         // End fix for issue 540
 
-	for (i = 0; i < nchild; i++) {
+	for (i = 0; i < numChildLessOne; i++) {
 	    child = (NodeRetained)children.get(i);
 	    if(child != null)
 		child.updatePickable(keys, (boolean []) pick.clone());
@@ -1352,12 +1351,18 @@ class GroupRetained extends NodeRetained implements BHLeafInterface {
     
 
     void updateCollidable(HashKey keys[], boolean collide[]) {
-	int nchild = children.size()-1;
+	int numChildLessOne = children.size() - 1;
 	super.updateCollidable(keys, collide);
 	int i=0;
 	NodeRetained child;
 	
-	for (i = 0; i < nchild; i++) {
+        // Fix for issue 540
+        if (numChildLessOne < 0) {
+            return;
+        }
+        // End fix for issue 540
+        
+        for (i = 0; i < numChildLessOne; i++) {
 	    child = (NodeRetained)children.get(i);
 	    if(child != null) 
 		child.updateCollidable(keys, (boolean []) collide.clone()); 
-- 
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