From 58f6bef577e862a82c2ed75bdf5348f6daaa479a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Westk=C3=A4mper?= <timo.westkamper@mysema.com>
Date: Fri, 8 Apr 2011 19:41:31 +0000
Subject: [PATCH] #754743 : throw IllegalStateException on multiple usage of
 sources

---
 .../java/com/mysema/query/sql/JoinUsageTest.java  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 querydsl-sql/src/test/java/com/mysema/query/sql/JoinUsageTest.java

diff --git a/querydsl-sql/src/test/java/com/mysema/query/sql/JoinUsageTest.java b/querydsl-sql/src/test/java/com/mysema/query/sql/JoinUsageTest.java
new file mode 100644
index 000000000..c8513959f
--- /dev/null
+++ b/querydsl-sql/src/test/java/com/mysema/query/sql/JoinUsageTest.java
@@ -0,0 +1,15 @@
+package com.mysema.query.sql;
+
+import org.junit.Test;
+
+import com.mysema.query.sql.domain.QSurvey;
+
+public class JoinUsageTest {
+    
+    @Test(expected=IllegalStateException.class)
+    public void Join_Already_Declared(){
+        SQLSubQuery subQuery = new SQLSubQuery();
+        subQuery.from(QSurvey.survey).fullJoin(QSurvey.survey);
+    }
+
+}