Polishing

spring-aop/src/main/java/org/springframework/aop/framework/CglibAopProxy.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -327,10 +327,11 @@ class CglibAopProxy implements AopProxy, Serializable {
 
 			// TODO: small memory optimization here (can skip creation for methods with no advice)
 			for (int x = 0; x < methods.length; x++) {
-				List<Object> chain = this.advised.getInterceptorsAndDynamicInterceptionAdvice(methods[x], rootClass);
+				Method method = methods[x];
+				List<Object> chain = this.advised.getInterceptorsAndDynamicInterceptionAdvice(method, rootClass);
 				fixedCallbacks[x] = new FixedChainStaticTargetInterceptor(
 						chain, this.advised.getTargetSource().getTarget(), this.advised.getTargetClass());
-				this.fixedInterceptorMap.put(methods[x].toString(), x);
+				this.fixedInterceptorMap.put(methods.toString(), x);
 			}
 
 			// Now copy both the callbacks from mainCallbacks
@@ -633,8 +634,8 @@ class CglibAopProxy implements AopProxy, Serializable {
 		@Override
 		@Nullable
 		public Object intercept(Object proxy, Method method, Object[] args, MethodProxy methodProxy) throws Throwable {
-			MethodInvocation invocation = new CglibMethodInvocation(proxy, this.target, method, args,
-					this.targetClass, this.adviceChain, methodProxy);
+			MethodInvocation invocation = new CglibMethodInvocation(
+					proxy, this.target, method, args, this.targetClass, this.adviceChain, methodProxy);
 			// If we get here, we need to create a MethodInvocation.
 			Object retVal = invocation.proceed();
 			retVal = processReturnType(proxy, this.target, method, retVal);
@@ -795,7 +796,7 @@ class CglibAopProxy implements AopProxy, Serializable {
 		 * <dt>For advised methods:</dt>
 		 * <dd>If the target is static and the advice chain is frozen then a
 		 * FixedChainStaticTargetInterceptor specific to the method is used to
-		 * invoke the advice chain. Otherwise a DyanmicAdvisedInterceptor is
+		 * invoke the advice chain. Otherwise a DynamicAdvisedInterceptor is
 		 * used.</dd>
 		 * <dt>For non-advised methods:</dt>
 		 * <dd>Where it can be determined that the method will not return {@code this}

spring-aop/src/main/java/org/springframework/aop/framework/ReflectiveMethodInvocation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -68,7 +68,7 @@ public class ReflectiveMethodInvocation implements ProxyMethodInvocation, Clonea
 
 	protected final Method method;
 
-	protected Object[] arguments = new Object[0];
+	protected Object[] arguments;
 
 	@Nullable
 	private final Class<?> targetClass;
@@ -158,7 +158,7 @@ public class ReflectiveMethodInvocation implements ProxyMethodInvocation, Clonea
 	@Override
 	@Nullable
 	public Object proceed() throws Throwable {
-		//	We start with an index of -1 and increment early.
+		// We start with an index of -1 and increment early.
 		if (this.currentInterceptorIndex == this.interceptorsAndDynamicMethodMatchers.size() - 1) {
 			return invokeJoinpoint();
 		}

spring-aop/src/main/java/org/springframework/aop/support/ComposablePointcut.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -24,12 +24,15 @@ import org.springframework.aop.Pointcut;
 import org.springframework.util.Assert;
 
 /**
- * Convenient class for building up pointcuts. All methods return
- * ComposablePointcut, so we can use a concise idiom like:
+ * Convenient class for building up pointcuts.
  *
- * {@code
- * Pointcut pc = new ComposablePointcut().union(classFilter).intersection(methodMatcher).intersection(pointcut);
- * }
+ * <p>All methods return {@code ComposablePointcut}, so we can use concise idioms
+ * like in the following example.
+ *
+ * <pre class="code">Pointcut pc = new ComposablePointcut()
+ *                      .union(classFilter)
+ *                      .intersection(methodMatcher)
+ *                      .intersection(pointcut);</pre>
  *
  * @author Rod Johnson
  * @author Juergen Hoeller
@@ -199,7 +202,7 @@ public class ComposablePointcut implements Pointcut, Serializable {
 
 	@Override
 	public String toString() {
-		return "ComposablePointcut: " + this.classFilter + ", " +this.methodMatcher;
+		return "ComposablePointcut: " + this.classFilter + ", " + this.methodMatcher;
 	}
 
 }

spring-aop/src/main/java/org/springframework/aop/support/DefaultIntroductionAdvisor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -39,7 +39,7 @@ import org.springframework.util.ClassUtils;
  * @author Juergen Hoeller
  * @since 11.11.2003
  */
-@SuppressWarnings({"serial" })
+@SuppressWarnings("serial")
 public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFilter, Ordered, Serializable {
 
 	private final Advice advice;
@@ -113,8 +113,8 @@ public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFil
 		for (Class<?> ifc : this.interfaces) {
 			if (this.advice instanceof DynamicIntroductionAdvice &&
 					!((DynamicIntroductionAdvice) this.advice).implementsInterface(ifc)) {
-			 throw new IllegalArgumentException("DynamicIntroductionAdvice [" + this.advice + "] " +
-					 "does not implement interface [" + ifc.getName() + "] specified for introduction");
+			throw new IllegalArgumentException("DynamicIntroductionAdvice [" + this.advice + "] " +
+					"does not implement interface [" + ifc.getName() + "] specified for introduction");
 			}
 		}
 	}

spring-aop/src/main/java/org/springframework/aop/support/NameMatchMethodPointcut.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -26,8 +26,9 @@ import org.springframework.lang.Nullable;
 import org.springframework.util.PatternMatchUtils;
 
 /**
- * Pointcut bean for simple method name matches, as alternative to regexp patterns.
- * Does not handle overloaded methods: all methods with a given name will be eligible.
+ * Pointcut bean for simple method name matches, as an alternative to regexp patterns.
+ *
+ * <p>Does not handle overloaded methods: all methods with a given name will be eligible.
  *
  * @author Juergen Hoeller
  * @author Rod Johnson

spring-aop/src/main/java/org/springframework/aop/support/Pointcuts.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -27,7 +27,8 @@ import org.springframework.util.Assert;
 /**
  * Pointcut constants for matching getters and setters,
  * and static methods useful for manipulating and evaluating pointcuts.
- * These methods are particularly useful for composing pointcuts
+ *
+ * <p>These methods are particularly useful for composing pointcuts
  * using the union and intersection methods.
  *
  * @author Rod Johnson

spring-aop/src/main/java/org/springframework/aop/support/annotation/AnnotationMatchingPointcut.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -62,7 +62,7 @@ public class AnnotationMatchingPointcut implements Pointcut {
 	}
 
 	/**
-	 * Create a new AnnotationMatchingPointcut for the given annotation type.
+	 * Create a new AnnotationMatchingPointcut for the given annotation types.
 	 * @param classAnnotationType the annotation type to look for at the class level
 	 * (can be {@code null})
 	 * @param methodAnnotationType the annotation type to look for at the method level
@@ -75,7 +75,7 @@ public class AnnotationMatchingPointcut implements Pointcut {
 	}
 
 	/**
-	 * Create a new AnnotationMatchingPointcut for the given annotation type.
+	 * Create a new AnnotationMatchingPointcut for the given annotation types.
 	 * @param classAnnotationType the annotation type to look for at the class level
 	 * (can be {@code null})
 	 * @param methodAnnotationType the annotation type to look for at the method level
@@ -138,7 +138,7 @@ public class AnnotationMatchingPointcut implements Pointcut {
 
 	@Override
 	public String toString() {
-		return "AnnotationMatchingPointcut: " + this.classFilter + ", " +this.methodMatcher;
+		return "AnnotationMatchingPointcut: " + this.classFilter + ", " + this.methodMatcher;
 	}
 
 

spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -139,9 +139,10 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 
 
 	/**
-	 * Create a new AutowiredAnnotationBeanPostProcessor
-	 * for Spring's standard {@link Autowired} annotation.
-	 * <p>Also supports JSR-330's {@link javax.inject.Inject} annotation, if available.
+	 * Create a new {@code AutowiredAnnotationBeanPostProcessor} for Spring's
+	 * standard {@link Autowired @Autowired} annotation.
+	 * <p>Also supports JSR-330's {@link javax.inject.Inject @Inject} annotation,
+	 * if available.
 	 */
 	@SuppressWarnings("unchecked")
 	public AutowiredAnnotationBeanPostProcessor() {
@@ -236,7 +237,7 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 	public Constructor<?>[] determineCandidateConstructors(Class<?> beanClass, final String beanName)
 			throws BeanCreationException {
 
-		// Let's check for lookup methods here..
+		// Let's check for lookup methods here...
 		if (!this.lookupMethodsChecked.contains(beanName)) {
 			try {
 				ReflectionUtils.doWithMethods(beanClass, method -> {
@@ -245,7 +246,8 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 						Assert.state(this.beanFactory != null, "No BeanFactory available");
 						LookupOverride override = new LookupOverride(method, lookup.value());
 						try {
-							RootBeanDefinition mbd = (RootBeanDefinition) this.beanFactory.getMergedBeanDefinition(beanName);
+							RootBeanDefinition mbd = (RootBeanDefinition)
+									this.beanFactory.getMergedBeanDefinition(beanName);
 							mbd.getMethodOverrides().addOverride(override);
 						}
 						catch (NoSuchBeanDefinitionException ex) {

spring-beans/src/main/java/org/springframework/beans/factory/support/CglibSubclassingInstantiationStrategy.java

@@ -249,7 +249,7 @@ public class CglibSubclassingInstantiationStrategy extends SimpleInstantiationSt
 		public int accept(Method method) {
 			MethodOverride methodOverride = getBeanDefinition().getMethodOverrides().getOverride(method);
 			if (logger.isTraceEnabled()) {
-				logger.trace("Override for '" + method.getName() + "' is [" + methodOverride + "]");
+				logger.trace("MethodOverride for " + method + ": " + methodOverride);
 			}
 			if (methodOverride == null) {
 				return PASSTHROUGH;

spring-core/src/main/java/org/springframework/core/annotation/AnnotationAttributes.java

@@ -369,26 +369,6 @@ public class AnnotationAttributes extends LinkedHashMap<String, Object> {
 		}
 	}
 
-	/**
-	 * Store the supplied {@code value} in this map under the specified
-	 * {@code key}, unless a value is already stored under the key.
-	 * @param key the key under which to store the value
-	 * @param value the value to store
-	 * @return the current value stored in this map, or {@code null} if no
-	 * value was previously stored in this map
-	 * @see #get
-	 * @see #put
-	 * @since 4.2
-	 */
-	@Override
-	public Object putIfAbsent(String key, Object value) {
-		Object obj = get(key);
-		if (obj == null) {
-			obj = put(key, value);
-		}
-		return obj;
-	}
-
 	@Override
 	public String toString() {
 		Iterator<Map.Entry<String, Object>> entries = entrySet().iterator();

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/SseEmitter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2019 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.
@@ -41,7 +41,7 @@ public class SseEmitter extends ResponseBodyEmitter {
 
 	static final MediaType TEXT_PLAIN = new MediaType("text", "plain", StandardCharsets.UTF_8);
 
-	static final MediaType UTF8_TEXT_EVENTSTREAM = new MediaType("text", "event-stream", StandardCharsets.UTF_8);
+	static final MediaType TEXT_EVENTSTREAM = new MediaType("text", "event-stream", StandardCharsets.UTF_8);
 
 
 	/**
@@ -70,7 +70,7 @@ public class SseEmitter extends ResponseBodyEmitter {
 
 		HttpHeaders headers = outputMessage.getHeaders();
 		if (headers.getContentType() == null) {
-			headers.setContentType(UTF8_TEXT_EVENTSTREAM);
+			headers.setContentType(TEXT_EVENTSTREAM);
 		}
 	}
 
@@ -82,10 +82,8 @@ public class SseEmitter extends ResponseBodyEmitter {
 	 * SseEmitter emitter = new SseEmitter();
 	 * emitter.send(event().data(myObject));
 	 * </pre>
-	 *
 	 * <p>Please, see {@link ResponseBodyEmitter#send(Object) parent Javadoc}
 	 * for important notes on exception handling.
-	 *
 	 * @param object the object to write
 	 * @throws IOException raised when an I/O error occurs
 	 * @throws java.lang.IllegalStateException wraps any other errors
@@ -103,10 +101,8 @@ public class SseEmitter extends ResponseBodyEmitter {
 	 * SseEmitter emitter = new SseEmitter();
 	 * emitter.send(event().data(myObject, MediaType.APPLICATION_JSON));
 	 * </pre>
-	 *
 	 * <p>Please, see {@link ResponseBodyEmitter#send(Object) parent Javadoc}
 	 * for important notes on exception handling.
-	 *
 	 * @param object the object to write
 	 * @param mediaType a MediaType hint for selecting an HttpMessageConverter
 	 * @throws IOException raised when an I/O error occurs