From 13819e01f7d57a59ebc945e4bd33b4b4882863bf Mon Sep 17 00:00:00 2001
From: Milosz Tylenda <mtylenda@apache.org>
Date: Tue, 12 May 2009 17:43:28 +0000
Subject: [PATCH] OPENJPA-466: Get rid of possible duplicate sequence values

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@773999 13f79535-47bb-0310-9956-ffa450edef68
---
 .../java/org/apache/openjpa/jdbc/kernel/AbstractJDBCSeq.java | 5 +++--
 .../java/org/apache/openjpa/jdbc/kernel/NativeJDBCSeq.java   | 4 +---
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/AbstractJDBCSeq.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/AbstractJDBCSeq.java
index f2c3c6520..e3da56391 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/AbstractJDBCSeq.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/AbstractJDBCSeq.java
@@ -57,8 +57,9 @@ public abstract class AbstractJDBCSeq
     public Object next(StoreContext ctx, ClassMetaData meta) {
         JDBCStore store = getStore(ctx);
         try {
-            current = nextInternal(store, (ClassMapping) meta);
-            return current;
+            Object currentLocal = nextInternal(store, (ClassMapping) meta);
+            current = currentLocal;
+            return currentLocal;
         } catch (OpenJPAException ke) {
             throw ke;
         } catch (SQLException se) {
diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/NativeJDBCSeq.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/NativeJDBCSeq.java
index ac0e62aed..5c1d13465 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/NativeJDBCSeq.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/NativeJDBCSeq.java
@@ -296,9 +296,7 @@ public class NativeJDBCSeq
         try {
             stmnt = conn.prepareStatement(_select);
             dict.setTimeouts(stmnt, _conf, false);
-            synchronized(this) {
-                rs = stmnt.executeQuery();
-            }
+            rs = stmnt.executeQuery();
             if (rs.next())
                 return rs.getLong(1);