Reuse JmsTemplate's MessageConverter in JmsMessagingTemplate

This commit makes sure that any custom MessageConverter set in a
JmsTemplate used by a JmsMessagingTemplate is reused as the payload
converter of the message.

Issue: SPR-15965

(cherry picked from commit b275a06)

spring-jms/src/main/java/org/springframework/jms/core/JmsMessagingTemplate.java

@@ -50,6 +50,8 @@ public class JmsMessagingTemplate extends AbstractMessagingTemplate<Destination>
 
 	private MessageConverter jmsMessageConverter = new MessagingMessageConverter();
 
+	private boolean converterSet;
+
 	private String defaultDestinationName;
 
 
@@ -126,6 +128,7 @@ public class JmsMessagingTemplate extends AbstractMessagingTemplate<Destination>
 	public void setJmsMessageConverter(MessageConverter jmsMessageConverter) {
 		Assert.notNull(jmsMessageConverter, "MessageConverter must not be null");
 		this.jmsMessageConverter = jmsMessageConverter;
+		this.converterSet = true;
 	}
 
 	/**
@@ -155,7 +158,11 @@ public class JmsMessagingTemplate extends AbstractMessagingTemplate<Destination>
 
 	@Override
 	public void afterPropertiesSet() {
-		Assert.notNull(getJmsTemplate(), "Property 'connectionFactory' or 'jmsTemplate' is required");
+		Assert.notNull(this.jmsTemplate, "Property 'connectionFactory' or 'jmsTemplate' is required");
+		if (!this.converterSet && this.jmsTemplate.getMessageConverter() != null) {
+			((MessagingMessageConverter) this.jmsMessageConverter)
+					.setPayloadConverter(this.jmsTemplate.getMessageConverter());
+		}
 	}
 
 

spring-jms/src/main/java/org/springframework/jms/support/converter/MessagingMessageConverter.java

@@ -54,6 +54,15 @@ public class MessagingMessageConverter implements MessageConverter, Initializing
 		this(new SimpleMessageConverter(), new SimpleJmsHeaderMapper());
 	}
 
+	/**
+	 * Create an instance with the specific payload converter.
+	 * @param payloadConverter the payload converter to use
+	 * @since 4.3.12
+	 */
+	public MessagingMessageConverter(MessageConverter payloadConverter) {
+		this(payloadConverter, new SimpleJmsHeaderMapper());
+	}
+
 	/**
 	 * Create an instance with the specified payload converter and
 	 * header mapper.