Polishing

spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionWrapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -161,6 +161,7 @@ class GroovyBeanDefinitionWrapper extends GroovyObjectSupport {
 		return this;
 	}
 
+
 	@Override
 	public Object getProperty(String property) {
 		if (this.definitionWrapper.isReadableProperty(property)) {

spring-test/src/main/java/org/springframework/test/context/TestContextManager.java

@@ -94,13 +94,8 @@ public class TestContextManager {
 
 	private final TestContext testContext;
 
-	private final ThreadLocal<TestContext> testContextHolder = new ThreadLocal<TestContext>() {
-
-		@Override
-		protected TestContext initialValue() {
-			return copyTestContext(TestContextManager.this.testContext);
-		}
-	};
+	private final ThreadLocal<TestContext> testContextHolder =
+			ThreadLocal.withInitial(() -> copyTestContext(TestContextManager.this.testContext));
 
 	private final List<TestExecutionListener> testExecutionListeners = new ArrayList<>();
 
@@ -364,11 +359,13 @@ public class TestContextManager {
 	 * @see #getTestExecutionListeners()
 	 * @see Throwable#addSuppressed(Throwable)
 	 */
-	public void afterTestExecution(Object testInstance, Method testMethod, @Nullable Throwable exception) throws Exception {
+	public void afterTestExecution(Object testInstance, Method testMethod, @Nullable Throwable exception)
+			throws Exception {
+
 		String callbackName = "afterTestExecution";
 		prepareForAfterCallback(callbackName, testInstance, testMethod, exception);
-
 		Throwable afterTestExecutionException = null;
+
 		// Traverse the TestExecutionListeners in reverse order to ensure proper
 		// "wrapper"-style execution of listeners.
 		for (TestExecutionListener testExecutionListener : getReversedTestExecutionListeners()) {
@@ -385,6 +382,7 @@ public class TestContextManager {
 				}
 			}
 		}
+
 		if (afterTestExecutionException != null) {
 			ReflectionUtils.rethrowException(afterTestExecutionException);
 		}
@@ -414,9 +412,8 @@ public class TestContextManager {
 	 * @param testInstance the current test instance (never {@code null})
 	 * @param testMethod the test method which has just been executed on the
 	 * test instance
-	 * @param exception the exception that was thrown during execution of the
-	 * test method or by a TestExecutionListener, or {@code null} if none
-	 * was thrown
+	 * @param exception the exception that was thrown during execution of the test
+	 * method or by a TestExecutionListener, or {@code null} if none was thrown
 	 * @throws Exception if a registered TestExecutionListener throws an exception
 	 * @see #beforeTestMethod
 	 * @see #beforeTestExecution
@@ -424,11 +421,13 @@ public class TestContextManager {
 	 * @see #getTestExecutionListeners()
 	 * @see Throwable#addSuppressed(Throwable)
 	 */
-	public void afterTestMethod(Object testInstance, Method testMethod, @Nullable Throwable exception) throws Exception {
+	public void afterTestMethod(Object testInstance, Method testMethod, @Nullable Throwable exception)
+			throws Exception {
+
 		String callbackName = "afterTestMethod";
 		prepareForAfterCallback(callbackName, testInstance, testMethod, exception);
-
 		Throwable afterTestMethodException = null;
+
 		// Traverse the TestExecutionListeners in reverse order to ensure proper
 		// "wrapper"-style execution of listeners.
 		for (TestExecutionListener testExecutionListener : getReversedTestExecutionListeners()) {
@@ -445,6 +444,7 @@ public class TestContextManager {
 				}
 			}
 		}
+
 		if (afterTestMethodException != null) {
 			ReflectionUtils.rethrowException(afterTestMethodException);
 		}
@@ -510,33 +510,36 @@ public class TestContextManager {
 			@Nullable Throwable exception) {
 
 		if (logger.isTraceEnabled()) {
-			logger.trace(String.format("%s(): instance [%s], method [%s], exception [%s]", callbackName, testInstance,
-					testMethod, exception));
+			logger.trace(String.format("%s(): instance [%s], method [%s], exception [%s]",
+					callbackName, testInstance, testMethod, exception));
 		}
 		getTestContext().updateState(testInstance, testMethod, exception);
 	}
 
 	private void handleBeforeException(Throwable ex, String callbackName, TestExecutionListener testExecutionListener,
 			Object testInstance, Method testMethod) throws Exception {
+
 		logException(ex, callbackName, testExecutionListener, testInstance, testMethod);
 		ReflectionUtils.rethrowException(ex);
 	}
 
-	private void logException(Throwable ex, String callbackName, TestExecutionListener testExecutionListener,
-			Class<?> testClass) {
+	private void logException(
+			Throwable ex, String callbackName, TestExecutionListener testExecutionListener, Class<?> testClass) {
+
 		if (logger.isWarnEnabled()) {
 			logger.warn(String.format("Caught exception while invoking '%s' callback on " +
-						"TestExecutionListener [%s] for test class [%s]", callbackName, testExecutionListener,
-						testClass), ex);
+					"TestExecutionListener [%s] for test class [%s]", callbackName, testExecutionListener,
+					testClass), ex);
 		}
 	}
 
 	private void logException(Throwable ex, String callbackName, TestExecutionListener testExecutionListener,
 			Object testInstance, Method testMethod) {
+
 		if (logger.isWarnEnabled()) {
 			logger.warn(String.format("Caught exception while invoking '%s' callback on " +
-						"TestExecutionListener [%s] for test method [%s] and test instance [%s]",
-						callbackName, testExecutionListener, testMethod, testInstance), ex);
+					"TestExecutionListener [%s] for test method [%s] and test instance [%s]",
+					callbackName, testExecutionListener, testMethod, testInstance), ex);
 		}
 	}
 
@@ -546,8 +549,8 @@ public class TestContextManager {
 	 * <em>copy constructor</em>.
 	 */
 	private static TestContext copyTestContext(TestContext testContext) {
-		Constructor<? extends TestContext> constructor = ClassUtils.getConstructorIfAvailable(testContext.getClass(),
-			testContext.getClass());
+		Constructor<? extends TestContext> constructor =
+				ClassUtils.getConstructorIfAvailable(testContext.getClass(), testContext.getClass());
 
 		if (constructor != null) {
 			try {
@@ -563,7 +566,7 @@ public class TestContextManager {
 			}
 		}
 
-		// fallback to original instance
+		// Fallback to original instance
 		return testContext;
 	}
 

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/CompositeRequestCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
-
 import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.lang.Nullable;
@@ -77,7 +76,7 @@ public class CompositeRequestCondition extends AbstractRequestCondition<Composit
 	}
 
 	/**
-	 * Return the underlying conditions, possibly empty but never {@code null}.
+	 * Return the underlying conditions (possibly empty but never {@code null}).
 	 */
 	public List<RequestCondition<?>> getConditions() {
 		return unwrap();

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ConsumesRequestCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,6 @@ package org.springframework.web.servlet.mvc.condition;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
@@ -49,7 +48,6 @@ public final class ConsumesRequestCondition extends AbstractRequestCondition<Con
 
 	private final static ConsumesRequestCondition PRE_FLIGHT_MATCH = new ConsumesRequestCondition();
 
-
 	private final List<ConsumeMediaTypeExpression> expressions;
 
 
@@ -159,7 +157,7 @@ public final class ConsumesRequestCondition extends AbstractRequestCondition<Con
 	 * @param request the current request
 	 * @return the same instance if the condition contains no expressions;
 	 * or a new condition with matching expressions only;
-	 * or {@code null} if no expressions match.
+	 * or {@code null} if no expressions match
 	 */
 	@Override
 	@Nullable
@@ -170,23 +168,20 @@ public final class ConsumesRequestCondition extends AbstractRequestCondition<Con
 		if (isEmpty()) {
 			return this;
 		}
+
 		MediaType contentType;
 		try {
-			contentType = StringUtils.hasLength(request.getContentType()) ?
+			contentType = (StringUtils.hasLength(request.getContentType()) ?
 					MediaType.parseMediaType(request.getContentType()) :
-					MediaType.APPLICATION_OCTET_STREAM;
+					MediaType.APPLICATION_OCTET_STREAM);
 		}
 		catch (InvalidMediaTypeException ex) {
 			return null;
 		}
+
 		Set<ConsumeMediaTypeExpression> result = new LinkedHashSet<>(this.expressions);
-		for (Iterator<ConsumeMediaTypeExpression> iterator = result.iterator(); iterator.hasNext();) {
-			ConsumeMediaTypeExpression expression = iterator.next();
-			if (!expression.match(contentType)) {
-				iterator.remove();
-			}
-		}
-		return (result.isEmpty()) ? null : new ConsumesRequestCondition(result);
+		result.removeIf(expression -> !expression.match(contentType));
+		return (!result.isEmpty() ? new ConsumesRequestCondition(result) : null);
 	}
 
 	/**

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ProducesRequestCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,6 @@ package org.springframework.web.servlet.mvc.condition;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
@@ -48,14 +47,14 @@ import org.springframework.web.servlet.mvc.condition.HeadersRequestCondition.Hea
  */
 public final class ProducesRequestCondition extends AbstractRequestCondition<ProducesRequestCondition> {
 
-	private final static ProducesRequestCondition PRE_FLIGHT_MATCH = new ProducesRequestCondition();
+	private static final ProducesRequestCondition PRE_FLIGHT_MATCH = new ProducesRequestCondition();
 
 	private static final ProducesRequestCondition EMPTY_CONDITION = new ProducesRequestCondition();
 
-
 	private static final List<ProduceMediaTypeExpression> MEDIA_TYPE_ALL_LIST =
 			Collections.singletonList(new ProduceMediaTypeExpression("*/*"));
 
+
 	private final List<ProduceMediaTypeExpression> expressions;
 
 	private final ContentNegotiationManager contentNegotiationManager;
@@ -194,6 +193,7 @@ public final class ProducesRequestCondition extends AbstractRequestCondition<Pro
 		if (isEmpty()) {
 			return this;
 		}
+
 		List<MediaType> acceptedMediaTypes;
 		try {
 			acceptedMediaTypes = getAcceptedMediaTypes(request);
@@ -201,13 +201,9 @@ public final class ProducesRequestCondition extends AbstractRequestCondition<Pro
 		catch (HttpMediaTypeException ex) {
 			return null;
 		}
-		Set<ProduceMediaTypeExpression> result = new LinkedHashSet<>(expressions);
-		for (Iterator<ProduceMediaTypeExpression> iterator = result.iterator(); iterator.hasNext();) {
-			ProduceMediaTypeExpression expression = iterator.next();
-			if (!expression.match(acceptedMediaTypes)) {
-				iterator.remove();
-			}
-		}
+
+		Set<ProduceMediaTypeExpression> result = new LinkedHashSet<>(this.expressions);
+		result.removeIf(expression -> !expression.match(acceptedMediaTypes));
 		if (!result.isEmpty()) {
 			return new ProducesRequestCondition(result, this.contentNegotiationManager);
 		}

spring-websocket/src/main/java/org/springframework/web/socket/handler/ConcurrentWebSocketSessionDecorator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -112,6 +112,7 @@ public class ConcurrentWebSocketSessionDecorator extends WebSocketSessionDecorat
 		return (start > 0 ? (System.currentTimeMillis() - start) : 0);
 	}
 
+
 	@Override
 	public void sendMessage(WebSocketMessage<?> message) throws IOException {
 		if (shouldNotSend()) {
@@ -124,10 +125,9 @@ public class ConcurrentWebSocketSessionDecorator extends WebSocketSessionDecorat
 		do {
 			if (!tryFlushMessageBuffer()) {
 				if (logger.isTraceEnabled()) {
-					String text = String.format("Another send already in progress: " +
+					logger.trace(String.format("Another send already in progress: " +
 							"session id '%s':, \"in-progress\" send time %d (ms), buffer size %d bytes",
-							getId(), getTimeSinceSendStarted(), getBufferSize());
-					logger.trace(text);
+							getId(), getTimeSinceSendStarted(), getBufferSize()));
 				}
 				checkSessionLimits();
 				break;