From 95ca74f9f94490b38df69882e43c3dabc8283b8d Mon Sep 17 00:00:00 2001
From: Redkale <22250530@qq.com>
Date: Mon, 17 Oct 2016 18:11:03 +0800
Subject: [PATCH]

---
 src/org/redkale/source/DataDefaultSource.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/org/redkale/source/DataDefaultSource.java b/src/org/redkale/source/DataDefaultSource.java
index 0813e6ac1..d5e26f31b 100644
--- a/src/org/redkale/source/DataDefaultSource.java
+++ b/src/org/redkale/source/DataDefaultSource.java
@@ -1079,7 +1079,8 @@ public final class DataDefaultSource implements DataSource, Function<Class, Enti
             Number rs = defVal;
             ResultSet set = prestmt.executeQuery();
             if (set.next()) {
-                rs = (Number) set.getObject(1);
+                Object o = set.getObject(1);
+                if (o != null) rs = (Number) o;
             }
             set.close();
             prestmt.close();