Support JUnit5 in tests

* wrapper

build.gradle

@@ -116,7 +116,10 @@ subprojects { subproject ->
 		jrubyVersion = '9.1.5.0'
 		jschVersion = '0.1.54'
 		jsonpathVersion = '2.4.0'
-		junitVersion = '4.12'
+		junit4Version = '4.12'
+		junitJupiterVersion = '5.1.0'
+		junitPlatformVersion = '1.1.0'
+		junitVintageVersion = '5.1.0'
 		jythonVersion = '2.5.3'
 		kryoShadedVersion = '3.0.3'
 		log4jVersion = '2.10.0'
@@ -161,6 +164,16 @@ subprojects { subproject ->
 			testCompile project(":spring-integration-test-support")
 		}
 
+		testCompile "org.junit.jupiter:junit-jupiter-api:$junitJupiterVersion"
+		testRuntime "org.junit.jupiter:junit-jupiter-engine:$junitJupiterVersion"
+		testRuntime "org.junit.platform:junit-platform-launcher:$junitPlatformVersion"
+
+		// To support JUnit 4 tests
+		testRuntime "org.junit.vintage:junit-vintage-engine:$junitVintageVersion"
+
+		// To avoid compiler warnings about @API annotations in JUnit code
+		testCompileOnly 'org.apiguardian:apiguardian-api:1.0.0'
+
 		testRuntime "org.apache.logging.log4j:log4j-slf4j-impl:$log4jVersion"
 		testRuntime "org.apache.logging.log4j:log4j-jcl:$log4jVersion"
 	}
@@ -269,7 +282,9 @@ project('spring-integration-test-support') {
 	dependencies {
 		compile "org.hamcrest:hamcrest-core:$hamcrestVersion"
 		compile "org.hamcrest:hamcrest-library:$hamcrestVersion"
-		compile "junit:junit:$junitVersion"
+		compile "junit:junit:$junit4Version"
+		compile ("org.junit.jupiter:junit-jupiter-api:$junitJupiterVersion", optional)
+		compileOnly 'org.apiguardian:apiguardian-api:1.0.0'
 		compile "org.mockito:mockito-core:$mockitoVersion"
 		compile "org.assertj:assertj-core:$assertjVersion"
 		compile "org.springframework:spring-context:$springVersion"

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.3.1-bin.zip

spring-integration-amqp/src/test/java/org/springframework/integration/amqp/dsl/AmqpTests.java

@@ -21,10 +21,8 @@ import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;
 
-import org.junit.AfterClass;
-import org.junit.ClassRule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.Test;
 
 import org.springframework.amqp.core.AmqpTemplate;
 import org.springframework.amqp.core.AnonymousQueue;
@@ -35,7 +33,8 @@ import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
 import org.springframework.amqp.rabbit.connection.ConnectionFactory;
 import org.springframework.amqp.rabbit.core.RabbitAdmin;
 import org.springframework.amqp.rabbit.core.RabbitTemplate;
-import org.springframework.amqp.rabbit.junit.BrokerRunning;
+import org.springframework.amqp.rabbit.junit.RabbitAvailable;
+import org.springframework.amqp.rabbit.junit.RabbitAvailableCondition;
 import org.springframework.amqp.rabbit.listener.DirectMessageListenerContainer;
 import org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -58,7 +57,7 @@ import org.springframework.messaging.Message;
 import org.springframework.messaging.MessageChannel;
 import org.springframework.messaging.PollableChannel;
 import org.springframework.test.annotation.DirtiesContext;
-import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 /**
  * @author Artem Bilan
@@ -66,15 +65,12 @@ import org.springframework.test.context.junit4.SpringRunner;
  *
  * @since 5.0
  */
-@RunWith(SpringRunner.class)
+@SpringJUnitConfig
+@RabbitAvailable(queues = { "amqpOutboundInput", "amqpReplyChannel", "asyncReplies",
+							"defaultReplyTo", "si.dsl.test", "testTemplateChannelTransacted" })
 @DirtiesContext
 public class AmqpTests {
 
-	@ClassRule
-	public static BrokerRunning brokerRunning =
-			BrokerRunning.isRunningWithEmptyQueues("amqpOutboundInput", "amqpReplyChannel", "asyncReplies",
-					"defaultReplyTo", "si.dsl.test", "testTemplateChannelTransacted");
-
 	@Autowired
 	private ConnectionFactory rabbitConnectionFactory;
 
@@ -95,9 +91,9 @@ public class AmqpTests {
 	@Autowired
 	private Lifecycle asyncOutboundGateway;
 
-	@AfterClass
+	@AfterAll
 	public static void tearDown() {
-		brokerRunning.removeTestQueues();
+		RabbitAvailableCondition.getBrokerRunning().removeTestQueues();
 	}
 
 	@Test

spring-integration-core/src/test/java/org/springframework/integration/channel/CGLibProxyChannelTests.java

@@ -24,8 +24,7 @@ import java.util.concurrent.Executor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicReference;
 
-import org.junit.Test;
-import org.junit.runner.RunWith;
+import org.junit.jupiter.api.Test;
 
 import org.springframework.aop.framework.ProxyFactoryBean;
 import org.springframework.aop.support.AopUtils;
@@ -37,14 +36,14 @@ import org.springframework.messaging.MessageChannel;
 import org.springframework.messaging.support.GenericMessage;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 import org.springframework.test.annotation.DirtiesContext;
-import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 /**
  * @author Gary Russell
  * @since 4.3.10
  *
  */
-@RunWith(SpringRunner.class)
+@SpringJUnitConfig
 @DirtiesContext
 public class CGLibProxyChannelTests {