polish

Remove unused imports

spring-messaging/src/test/java/org/springframework/messaging/simp/annotation/support/SendToMethodReturnValueHandlerTests.java

@@ -44,7 +44,6 @@ import org.springframework.messaging.MessageHeaders;
 import org.springframework.messaging.converter.StringMessageConverter;
 import org.springframework.messaging.handler.DestinationPatternsMessageCondition;
 import org.springframework.messaging.handler.annotation.SendTo;
-import org.springframework.messaging.handler.annotation.support.DestinationVariableMethodArgumentResolver;
 import org.springframework.messaging.simp.SimpMessageHeaderAccessor;
 import org.springframework.messaging.simp.SimpMessageSendingOperations;
 import org.springframework.messaging.simp.SimpMessagingTemplate;

spring-messaging/src/test/java/org/springframework/messaging/simp/broker/SimpleBrokerMessageHandlerTests.java

@@ -17,8 +17,6 @@
 package org.springframework.messaging.simp.broker;
 
 import static org.junit.Assert.*;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.*;
 
 import java.security.Principal;

spring-messaging/src/test/java/org/springframework/messaging/simp/config/StompBrokerRelayRegistrationTests.java

@@ -16,9 +16,6 @@
 
 package org.springframework.messaging.simp.config;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-
 import org.junit.Test;
 
 import org.springframework.messaging.MessageChannel;

spring-messaging/src/test/java/org/springframework/messaging/simp/stomp/DefaultStompSessionTests.java

@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.messaging.simp.stomp;
 
 import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.*;
 import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.eq;
 import static org.mockito.Mockito.*;
 
 import java.nio.charset.Charset;

spring-messaging/src/test/java/org/springframework/messaging/simp/user/MultiServerUserRegistryTests.java

@@ -13,14 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.messaging.simp.user;
 
 import static org.junit.Assert.*;
 import static org.mockito.Mockito.*;
 
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.Iterator;

spring-messaging/src/test/java/org/springframework/messaging/simp/user/TestSimpSession.java

@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.messaging.simp.user;
 
-import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 

spring-messaging/src/test/java/org/springframework/messaging/simp/user/UserRegistryMessageHandlerTests.java

@@ -13,11 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.messaging.simp.user;
 
 import static org.junit.Assert.*;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.*;
 
 import java.util.Arrays;