From 1d0ebc27308609a21f3762a64019098b4ae36e6e Mon Sep 17 00:00:00 2001
From: Jarek Jarcec Cecho <jarcec@apache.org>
Date: Sat, 9 Mar 2013 09:26:06 -0800
Subject: [PATCH] SQOOP-936: Classwriter should check if columnNames generated
 are null before accessing them

(Venkat Ranganathan via Jarek Jarcec Cecho)
---
 src/java/org/apache/sqoop/orm/ClassWriter.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/java/org/apache/sqoop/orm/ClassWriter.java b/src/java/org/apache/sqoop/orm/ClassWriter.java
index 136982c8..982e4441 100644
--- a/src/java/org/apache/sqoop/orm/ClassWriter.java
+++ b/src/java/org/apache/sqoop/orm/ClassWriter.java
@@ -1071,6 +1071,10 @@ private void generateHadoopWrite(Map<String, Integer> columnTypes,
   public void generate() throws IOException {
     Map<String, Integer> columnTypes = getColumnTypes();
 
+    if (columnTypes == null) {
+      throw new IOException("No columns to generate for ClassWriter");
+    }
+
     String[] colNames = getColumnNames(columnTypes);
 
     // Translate all the column names into names that are safe to