CachingConnectionFactory makes its Session caching inactive during reset

Issue: SPR-16450

spring-jms/src/main/java/org/springframework/jms/connection/CachingConnectionFactory.java

@@ -175,6 +175,7 @@ public class CachingConnectionFactory extends SingleConnectionFactory {
 	@Override
 	public void resetConnection() {
 		this.active = false;
+
 		synchronized (this.cachedSessions) {
 			for (LinkedList<Session> sessionList : this.cachedSessions.values()) {
 				synchronized (sessionList) {
@@ -190,10 +191,11 @@ public class CachingConnectionFactory extends SingleConnectionFactory {
 			}
 			this.cachedSessions.clear();
 		}
-		this.active = true;
 
 		// Now proceed with actual closing of the shared Connection...
 		super.resetConnection();
+
+		this.active = true;
 	}
 
 	/**
@@ -201,6 +203,10 @@ public class CachingConnectionFactory extends SingleConnectionFactory {
 	 */
 	@Override
 	protected Session getSession(Connection con, Integer mode) throws JMSException {
+		if (!this.active) {
+			return null;
+		}
+
 		LinkedList<Session> sessionList;
 		synchronized (this.cachedSessions) {
 			sessionList = this.cachedSessions.get(mode);
@@ -264,11 +270,9 @@ public class CachingConnectionFactory extends SingleConnectionFactory {
 
 		private final LinkedList<Session> sessionList;
 
-		private final Map<DestinationCacheKey, MessageProducer> cachedProducers =
+		private final Map<DestinationCacheKey, MessageProducer> cachedProducers = new HashMap<>();
-				new HashMap<>();
 
-		private final Map<ConsumerCacheKey, MessageConsumer> cachedConsumers =
+		private final Map<ConsumerCacheKey, MessageConsumer> cachedConsumers = new HashMap<>();
-				new HashMap<>();
 
 		private boolean transactionOpen = false;