StreamBridge test cleanup

 - Fix a race condtion that causes a CI failure

core/spring-cloud-stream-integration-tests/src/test/java/org/springframework/cloud/stream/function/StreamBridgeTests.java

@@ -575,22 +575,20 @@ void testBridgeFunctionsWitthPartitionInformation() {
 	}
 
 	@Test
-	void testSendingMessageToOutputOfExistingSupplier() throws Exception {
+	void testSendingMessageToOutputOfExistingSupplier() {
 		try (ConfigurableApplicationContext context = new SpringApplicationBuilder(TestChannelBinderConfiguration
 			.getCompleteConfiguration(TestConfiguration.class))
-			.web(WebApplicationType.NONE).run("--spring.cloud.stream.output-bindings=supplier;foo",
-				"--spring.jmx.enabled=false")) {
+			.web(WebApplicationType.NONE).run("--spring.cloud.stream.output-bindings=supplier;foo")) {
 
 			StreamBridge bridge = context.getBean(StreamBridge.class);
-			bridge.send("supplier-out-0", "blah");
 			bridge.send("foo-out-0", "b");
 
-
 			OutputDestination outputDestination = context.getBean(OutputDestination.class);
 			Message<byte[]> message = outputDestination.receive(100, "foo-out-0");
 			assertThat(new String(message.getPayload())).isEqualTo("b");
 			message = outputDestination.receive(100, "supplier-out-0");
 			assertThat(new String(message.getPayload())).isEqualTo("hello");
+			bridge.send("supplier-out-0", "blah");
 			message = outputDestination.receive(100, "supplier-out-0");
 			assertThat(new String(message.getPayload())).isEqualTo("blah");
 		}