From 83bd56c6de077c469da4964cbcb71e6d821e7fa0 Mon Sep 17 00:00:00 2001
From: Juergen Hoeller <jhoeller@vmware.com>
Date: Sat, 8 Aug 2009 01:01:39 +0000
Subject: [PATCH] JMS SingleConnectionFactory uses minimized number of start
 calls (for Oracle AQ; SPR-5987)

---
 .../jms/connection/SingleConnectionFactory.java             | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/org.springframework.jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java b/org.springframework.jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
index 66526e8ecc..5afebf0056 100644
--- a/org.springframework.jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
+++ b/org.springframework.jms/src/main/java/org/springframework/jms/connection/SingleConnectionFactory.java
@@ -510,8 +510,10 @@ public class SingleConnectionFactory
 			else if (method.getName().equals("start")) {
 				// Handle start method: track started state.
 				synchronized (connectionMonitor) {
-					this.target.start();
-					started = true;
+					if (!started) {
+						this.target.start();
+						started = true;
+					}
 				}
 				return null;
 			}