Undertow-related polishing

(cherry picked from commit 2750ab6)

spring-websocket/src/main/java/org/springframework/web/socket/server/standard/UndertowRequestUpgradeStrategy.java

@@ -16,6 +16,16 @@
 
 package org.springframework.web.socket.server.standard;
 
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.websocket.Decoder;
+import javax.websocket.Encoder;
+import javax.websocket.Endpoint;
+import javax.websocket.Extension;
+
 import io.undertow.server.HttpServerExchange;
 import io.undertow.server.HttpUpgradeListener;
 import io.undertow.servlet.api.InstanceFactory;
@@ -31,18 +41,11 @@ import io.undertow.websockets.jsr.EncodingFactory;
 import io.undertow.websockets.jsr.EndpointSessionHandler;
 import io.undertow.websockets.jsr.ServerWebSocketContainer;
 import io.undertow.websockets.jsr.handshake.HandshakeUtil;
+import org.xnio.StreamConnection;
+
 import org.springframework.http.server.ServerHttpRequest;
 import org.springframework.http.server.ServerHttpResponse;
 import org.springframework.web.socket.server.HandshakeFailureException;
-import org.xnio.StreamConnection;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.websocket.Decoder;
-import javax.websocket.Encoder;
-import javax.websocket.Endpoint;
-import javax.websocket.Extension;
-import java.util.*;
 
 
 /**
@@ -60,13 +63,13 @@ public class UndertowRequestUpgradeStrategy extends AbstractStandardUpgradeStrat
 
 
 	public UndertowRequestUpgradeStrategy() {
-		this.handshakes = new Handshake[] { new Hybi13Handshake(), new Hybi08Handshake(), new Hybi07Handshake() };
+		this.handshakes = new Handshake[] {new Hybi13Handshake(), new Hybi08Handshake(), new Hybi07Handshake()};
 		this.supportedVersions = initSupportedVersions(this.handshakes);
 	}
 
 	private String[] initSupportedVersions(Handshake[] handshakes) {
 		String[] versions = new String[handshakes.length];
-		for (int i=0; i < versions.length; i++) {
+		for (int i = 0; i < versions.length; i++) {
 			versions[i] = handshakes[i].getVersion().toHttpHeaderValue();
 		}
 		return versions;
@@ -125,8 +128,7 @@ public class UndertowRequestUpgradeStrategy extends AbstractStandardUpgradeStrat
 		endpointRegistration.setSubprotocols(Arrays.asList(selectedProtocol));
 		endpointRegistration.setExtensions(selectedExtensions);
 
-		return new ConfiguredServerEndpoint(endpointRegistration,
-				new EndpointInstanceFactory(endpoint), null,
+		return new ConfiguredServerEndpoint(endpointRegistration, new EndpointInstanceFactory(endpoint), null,
 				new EncodingFactory(
 						Collections.<Class<?>, List<InstanceFactory<? extends Encoder>>>emptyMap(),
 						Collections.<Class<?>, List<InstanceFactory<? extends Decoder>>>emptyMap(),
@@ -145,7 +147,6 @@ public class UndertowRequestUpgradeStrategy extends AbstractStandardUpgradeStrat
 
 		@Override
 		public InstanceHandle<Endpoint> createInstance() throws InstantiationException {
-
 			return new InstanceHandle<Endpoint>() {
 				@Override
 				public Endpoint getInstance() {

spring-websocket/src/test/java/org/springframework/web/socket/WebSocketIntegrationTests.java

@@ -23,17 +23,18 @@ import java.util.Arrays;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.web.socket.handler.TextWebSocketHandler;
-import org.springframework.web.socket.handler.AbstractWebSocketHandler;
-import org.springframework.web.socket.client.standard.StandardWebSocketClient;
 import org.springframework.web.socket.client.jetty.JettyWebSocketClient;
-import org.springframework.web.socket.server.support.DefaultHandshakeHandler;
+import org.springframework.web.socket.client.standard.StandardWebSocketClient;
 import org.springframework.web.socket.config.annotation.EnableWebSocket;
 import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
 import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
+import org.springframework.web.socket.handler.AbstractWebSocketHandler;
+import org.springframework.web.socket.handler.TextWebSocketHandler;
+import org.springframework.web.socket.server.support.DefaultHandshakeHandler;
 
 import static org.junit.Assert.*;
 
@@ -47,22 +48,21 @@ public class WebSocketIntegrationTests extends  AbstractWebSocketIntegrationTest
 
 	@Parameterized.Parameters
 	public static Iterable<Object[]> arguments() {
-		return Arrays.asList(new Object[][]{
+		return Arrays.asList(new Object[][] {
 				{new JettyWebSocketTestServer(), new JettyWebSocketClient()},
 				{new TomcatWebSocketTestServer(), new StandardWebSocketClient()},
 				{new UndertowTestServer(), new JettyWebSocketClient()}
 		});
-	};
+	}
 
 
 	@Override
 	protected Class<?>[] getAnnotatedConfigClasses() {
-		return new Class<?>[] { TestWebSocketConfigurer.class };
+		return new Class<?>[] {TestWebSocketConfigurer.class};
 	}
 
 	@Test
 	public void subProtocolNegotiation() throws Exception {
-
 		WebSocketHttpHeaders headers = new WebSocketHttpHeaders();
 		headers.setSecWebSocketProtocol("foo");
 
@@ -78,7 +78,7 @@ public class WebSocketIntegrationTests extends  AbstractWebSocketIntegrationTest
 	static class TestWebSocketConfigurer implements WebSocketConfigurer {
 
 		@Autowired
-		private DefaultHandshakeHandler handshakeHandler; // can't rely on classpath for server detection
+		private DefaultHandshakeHandler handshakeHandler;  // can't rely on classpath for server detection
 
 		@Override
 		public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
@@ -92,6 +92,7 @@ public class WebSocketIntegrationTests extends  AbstractWebSocketIntegrationTest
 		}
 	}
 
+
 	private static class TestServerWebSocketHandler extends TextWebSocketHandler {
 	}