Clear remaining invoker resources when releasing shared Connection

Closes gh-35932

Author: jhoeller

spring-jms/src/main/java/org/springframework/jms/listener/DefaultMessageListenerContainer.java

@@ -757,10 +757,8 @@ protected void doShutdown() throws JMSException {
 				}
 				waitCount++;
 			}
-			// Clear remaining scheduled invokers, possibly left over as paused tasks
-			for (AsyncMessageListenerInvoker scheduledInvoker : this.scheduledInvokers) {
-				scheduledInvoker.clearResources();
-			}
+			// Clear remaining scheduled invokers, possibly left over as paused tasks.
+			clearResourcesInScheduledInvokers();
 			this.scheduledInvokers.clear();
 		}
 		catch (InterruptedException ex) {
@@ -910,6 +908,15 @@ private void scheduleNewInvoker() {
 		}
 	}
 
+	/**
+	 * Clear resources in scheduled invokers, even in case of paused tasks.
+	 */
+	private void clearResourcesInScheduledInvokers() {
+		for (AsyncMessageListenerInvoker scheduledInvoker : this.scheduledInvokers) {
+			scheduledInvoker.clearResources();
+		}
+	}
+
 	/**
 	 * Use a shared JMS Connection depending on the "cacheLevel" setting.
 	 * @see #setCacheLevel
@@ -1427,6 +1434,7 @@ private void decreaseActiveInvokerCount() {
 			if (activeInvokerCount == 0) {
 				if (!isRunning()) {
 					// Proactively release shared Connection when stopped.
+					clearResourcesInScheduledInvokers();
 					releaseSharedConnection();
 				}
 				if (stopCallback != null) {