From e139b0cc5d6059172db7642bd14036d6ed263b4a Mon Sep 17 00:00:00 2001
From: Redkale <22250530@qq.com>
Date: Sun, 11 Dec 2016 19:56:33 +0800
Subject: [PATCH]

---
 src/org/redkale/source/FilterJoinNode.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/org/redkale/source/FilterJoinNode.java b/src/org/redkale/source/FilterJoinNode.java
index fa009a5c6..33e3823c1 100644
--- a/src/org/redkale/source/FilterJoinNode.java
+++ b/src/org/redkale/source/FilterJoinNode.java
@@ -284,7 +284,7 @@ public class FilterJoinNode extends FilterNode {
     }
 
     private static CharSequence createElementSQLJoin(final Map<Class, String> joinTabalis, final Set<String> haset, final EntityInfo info, final FilterJoinNode node) {
-        if (node.joinClass == null || haset.contains(joinTabalis.get(node.joinClass))) return null;
+        if (node.joinClass == null || (haset != null && haset.contains(joinTabalis.get(node.joinClass)))) return null;
         StringBuilder sb = new StringBuilder();
         String[] joinColumns = node.joinColumns;
         int pos = joinColumns[0].indexOf('=');