From b80b2d8e63043cea338ce34ea36e75ffac7aef06 Mon Sep 17 00:00:00 2001
From: Cheolsoo Park <cheolsoo@apache.org>
Date: Sun, 10 Feb 2013 13:17:05 -0800
Subject: [PATCH] SQOOP-879: NPE when deleting job object that do not have
 associated any submissions

(Jarcec Cecho via Cheolsoo Park)
---
 .../sqoop/repository/derby/DerbyRepositoryHandler.java       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/repository/repository-derby/src/main/java/org/apache/sqoop/repository/derby/DerbyRepositoryHandler.java b/repository/repository-derby/src/main/java/org/apache/sqoop/repository/derby/DerbyRepositoryHandler.java
index 5e24ae3e..8af86b78 100644
--- a/repository/repository-derby/src/main/java/org/apache/sqoop/repository/derby/DerbyRepositoryHandler.java
+++ b/repository/repository-derby/src/main/java/org/apache/sqoop/repository/derby/DerbyRepositoryHandler.java
@@ -727,6 +727,11 @@ public boolean existsJob(long id, Connection conn) {
   public boolean inUseJob(long jobId, Connection conn) {
     MSubmission submission = findSubmissionLastForJob(jobId, conn);
 
+    // We have no submissions and thus job can't be in use
+    if(submission == null) {
+      return false;
+    }
+
     // We can't remove running job
     if(submission.getStatus().isRunning()) {
       return true;