polishing

spring-jms/src/main/java/org/springframework/jms/config/JmsListenerEndpointRegistrar.java

@@ -155,7 +155,7 @@ public class JmsListenerEndpointRegistrar implements BeanFactoryAware, Initializ
 	 */
 	public void registerEndpoint(JmsListenerEndpoint endpoint, JmsListenerContainerFactory<?> factory) {
 		Assert.notNull(endpoint, "Endpoint must be set");
-		Assert.notNull(endpoint.getId(), "Endpoint id must be set");
+		Assert.hasText(endpoint.getId(), "Endpoint id must be set");
 		// Factory may be null, we defer the resolution right before actually creating the container
 		this.endpointDescriptors.add(new JmsListenerEndpointDescriptor(endpoint, factory));
 	}

spring-jms/src/test/java/org/springframework/jms/config/JmsListenerEndpointRegistrarTests.java

@@ -58,6 +58,15 @@ public class JmsListenerEndpointRegistrarTests {
 		registrar.registerEndpoint(new SimpleJmsListenerEndpoint(), containerFactory);
 	}
 
+	@Test
+	public void registerEmptyEndpointId() {
+		SimpleJmsListenerEndpoint endpoint = new SimpleJmsListenerEndpoint();
+		endpoint.setId("");
+
+		thrown.expect(IllegalArgumentException.class);
+		registrar.registerEndpoint(endpoint, containerFactory);
+	}
+
 	@Test
 	public void registerNullContainerFactoryIsAllowed() throws Exception {
 		SimpleJmsListenerEndpoint endpoint = new SimpleJmsListenerEndpoint();