From aea7c89175f6e326a76280ee43b33bb5cb172709 Mon Sep 17 00:00:00 2001
From: Xavier Le Vourch <xlv@users.sourceforge.net>
Date: Thu, 11 Dec 2008 07:09:45 +0000
Subject: [PATCH] oops, NPE in previous commit...

git-svn-id: https://pmd.svn.sourceforge.net/svnroot/pmd/branches/pmd/4.2.x@6749 51baf565-9d33-0410-a72c-fc3788e3496d
---
 pmd/src/net/sourceforge/pmd/rules/design/UseSingleton.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pmd/src/net/sourceforge/pmd/rules/design/UseSingleton.java b/pmd/src/net/sourceforge/pmd/rules/design/UseSingleton.java
index 8f7a078348..4778db671e 100644
--- a/pmd/src/net/sourceforge/pmd/rules/design/UseSingleton.java
+++ b/pmd/src/net/sourceforge/pmd/rules/design/UseSingleton.java
@@ -26,7 +26,11 @@ public class UseSingleton extends AbstractRule {
             int methodCount = 0;
             boolean isOK = false;
             while (i > 0) {
-                Node n = decl.jjtGetChild(--i).jjtGetChild(0);
+                Node n = decl.jjtGetChild(--i);
+                if (n.jjtGetNumChildren() != 1) {
+                    break;
+                }
+                n = n.jjtGetChild(0);
                 if (n instanceof ASTFieldDeclaration) {
                     if (!((ASTFieldDeclaration) n).isStatic()) {
                         isOK = true;