From e70cb13b07f5b2c17dec74a42c05e7e32bb33ffb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lars=20K=C3=BChne?= <lakuehne@gmail.com>
Date: Sat, 2 Nov 2002 16:44:52 +0000
Subject: [PATCH] fixed NPE

---
 .../com/puppycrawl/tools/checkstyle/api/DetailAST.java          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/checkstyle/com/puppycrawl/tools/checkstyle/api/DetailAST.java b/src/checkstyle/com/puppycrawl/tools/checkstyle/api/DetailAST.java
index 1da77ef2b..d3748e372 100644
--- a/src/checkstyle/com/puppycrawl/tools/checkstyle/api/DetailAST.java
+++ b/src/checkstyle/com/puppycrawl/tools/checkstyle/api/DetailAST.java
@@ -172,7 +172,7 @@ public class DetailAST
     public DetailAST getLastChild()
     {
         AST ast = getFirstChild();
-        while (ast.getNextSibling() != null) {
+        while (ast != null && ast.getNextSibling() != null) {
             ast = ast.getNextSibling();
         }
         return (DetailAST) ast;