More RetryingTest for UDP and NIO tests

(cherry picked from commit 210eb46)

Author: artembilan

spring-integration-ip/src/test/java/org/springframework/integration/ip/tcp/connection/TcpNioConnectionTests.java

@@ -595,7 +595,7 @@ private void cleanupCompositeExecutor(CompositeExecutor compositeExec) throws Ex
 		TestUtils.getPropertyValue(compositeExec, "secondaryTaskExecutor", DisposableBean.class).destroy();
 	}
 
-	@Test
+	@RetryingTest(10)
 	public void testAllMessagesDelivered() throws Exception {
 		final int numberOfSockets = 10;
 		TcpNioServerConnectionFactory factory = new TcpNioServerConnectionFactory(0);

spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/DatagramPacketMulticastSendingHandlerTests.java

@@ -52,7 +52,7 @@
 @DisabledOnOs(value = OS.MAC, disabledReason = "Multicast tests don't work on MacOS")
 public class DatagramPacketMulticastSendingHandlerTests {
 
-	@RetryingTest(10)
+	@RetryingTest(20)
 	public void verifySendMulticast(MulticastCondition multicastCondition) throws Exception {
 		MulticastSocket socket;
 		try {
@@ -121,7 +121,7 @@ public void verifySendMulticast(MulticastCondition multicastCondition) throws Ex
 		socket.close();
 	}
 
-	@RetryingTest(10)
+	@RetryingTest(20)
 	public void verifySendMulticastWithAcks(MulticastCondition multicastCondition) throws Exception {
 		MulticastSocket socket = new MulticastSocket();
 		final int testPort = socket.getLocalPort();

spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/UdpChannelAdapterTests.java

@@ -246,7 +246,7 @@ public void testUnicastSender() {
 	}
 
 	@SuppressWarnings("unchecked")
-	@RetryingTest(10)
+	@RetryingTest(20)
 	public void testMulticastReceiver(MulticastCondition multicastCondition) throws Exception {
 		QueueChannel channel = new QueueChannel(2);
 		MulticastReceivingChannelAdapter adapter =