Polishing

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

 /*
- * 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.
@@ -27,11 +27,11 @@ import org.aopalliance.intercept.MethodInterceptor;
 
 import org.springframework.aop.Advisor;
 import org.springframework.aop.IntroductionAdvisor;
+import org.springframework.aop.IntroductionAwareMethodMatcher;
 import org.springframework.aop.MethodMatcher;
 import org.springframework.aop.PointcutAdvisor;
 import org.springframework.aop.framework.adapter.AdvisorAdapterRegistry;
 import org.springframework.aop.framework.adapter.GlobalAdvisorAdapterRegistry;
-import org.springframework.aop.support.MethodMatchers;
 import org.springframework.lang.Nullable;
 
 /**
@@ -53,19 +53,30 @@ public class DefaultAdvisorChainFactory implements AdvisorChainFactory, Serializ
 
 		// This is somewhat tricky... We have to process introductions first,
 		// but we need to preserve order in the ultimate list.
-		List<Object> interceptorList = new ArrayList<>(config.getAdvisors().length);
-		Class<?> actualClass = (targetClass != null ? targetClass : method.getDeclaringClass());
-		boolean hasIntroductions = hasMatchingIntroductions(config, actualClass);
 		AdvisorAdapterRegistry registry = GlobalAdvisorAdapterRegistry.getInstance();
+		Advisor[] advisors = config.getAdvisors();
+		List<Object> interceptorList = new ArrayList<>(advisors.length);
+		Class<?> actualClass = (targetClass != null ? targetClass : method.getDeclaringClass());
+		Boolean hasIntroductions = null;
 
-		for (Advisor advisor : config.getAdvisors()) {
+		for (Advisor advisor : advisors) {
 			if (advisor instanceof PointcutAdvisor) {
 				// Add it conditionally.
 				PointcutAdvisor pointcutAdvisor = (PointcutAdvisor) advisor;
 				if (config.isPreFiltered() || pointcutAdvisor.getPointcut().getClassFilter().matches(actualClass)) {
-					MethodInterceptor[] interceptors = registry.getInterceptors(advisor);
 					MethodMatcher mm = pointcutAdvisor.getPointcut().getMethodMatcher();
-					if (MethodMatchers.matches(mm, method, actualClass, hasIntroductions)) {
+					boolean match;
+					if (mm instanceof IntroductionAwareMethodMatcher) {
+						if (hasIntroductions == null) {
+							hasIntroductions = hasMatchingIntroductions(advisors, actualClass);
+						}
+						match = ((IntroductionAwareMethodMatcher) mm).matches(method, targetClass, hasIntroductions);
+					}
+					else {
+						match = mm.matches(method, targetClass);
+					}
+					if (match) {
+						MethodInterceptor[] interceptors = registry.getInterceptors(advisor);
 						if (mm.isRuntime()) {
 							// Creating a new object instance in the getInterceptors() method
 							// isn't a problem as we normally cache created chains.
@@ -98,9 +109,8 @@ public class DefaultAdvisorChainFactory implements AdvisorChainFactory, Serializ
 	/**
 	 * Determine whether the Advisors contain matching introductions.
 	 */
-	private static boolean hasMatchingIntroductions(Advised config, Class<?> actualClass) {
-		for (int i = 0; i < config.getAdvisors().length; i++) {
-			Advisor advisor = config.getAdvisors()[i];
+	private static boolean hasMatchingIntroductions(Advisor[] advisors, Class<?> actualClass) {
+		for (Advisor advisor : advisors) {
 			if (advisor instanceof IntroductionAdvisor) {
 				IntroductionAdvisor ia = (IntroductionAdvisor) advisor;
 				if (ia.getClassFilter().matches(actualClass)) {

spring-aop/src/main/java/org/springframework/aop/framework/adapter/AdvisorAdapterRegistry.java

@@ -31,15 +31,15 @@ import org.springframework.aop.Advisor;
 public interface AdvisorAdapterRegistry {
 
 	/**
-	 * Return an Advisor wrapping the given advice.
+	 * Return an {@link Advisor} wrapping the given advice.
 	 * <p>Should by default at least support
 	 * {@link org.aopalliance.intercept.MethodInterceptor},
 	 * {@link org.springframework.aop.MethodBeforeAdvice},
 	 * {@link org.springframework.aop.AfterReturningAdvice},
 	 * {@link org.springframework.aop.ThrowsAdvice}.
-	 * @param advice object that should be an advice
-	 * @return an Advisor wrapping the given advice. Never returns {@code null}.
-	 * If the advice parameter is an Advisor, return it.
+	 * @param advice an object that should be an advice
+	 * @return an Advisor wrapping the given advice (never {@code null};
+	 * if the advice parameter is an Advisor, it is to be returned as-is)
 	 * @throws UnknownAdviceTypeException if no registered advisor adapter
 	 * can wrap the supposed advice
 	 */
@@ -48,21 +48,20 @@ public interface AdvisorAdapterRegistry {
 	/**
 	 * Return an array of AOP Alliance MethodInterceptors to allow use of the
 	 * given Advisor in an interception-based framework.
-	 * <p>Don't worry about the pointcut associated with the Advisor,
-	 * if it's a PointcutAdvisor: just return an interceptor.
+	 * <p>Don't worry about the pointcut associated with the {@link Advisor}, if it is
+	 * a {@link org.springframework.aop.PointcutAdvisor}: just return an interceptor.
 	 * @param advisor the Advisor to find an interceptor for
 	 * @return an array of MethodInterceptors to expose this Advisor's behavior
 	 * @throws UnknownAdviceTypeException if the Advisor type is
-	 * not understood by any registered AdvisorAdapter.
+	 * not understood by any registered AdvisorAdapter
 	 */
 	MethodInterceptor[] getInterceptors(Advisor advisor) throws UnknownAdviceTypeException;
 
 	/**
-	 * Register the given AdvisorAdapter. Note that it is not necessary to register
+	 * Register the given {@link AdvisorAdapter}. Note that it is not necessary to register
 	 * adapters for an AOP Alliance Interceptors or Spring Advices: these must be
-	 * automatically recognized by an AdvisorAdapterRegistry implementation.
-	 * @param adapter the AdvisorAdapter that understands a particular Advisor
-	 * or Advice types
+	 * automatically recognized by an {@code AdvisorAdapterRegistry} implementation.
+	 * @param adapter an AdvisorAdapter that understands particular Advisor or Advice types
 	 */
 	void registerAdvisorAdapter(AdvisorAdapter adapter);
 

spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/BeanFactoryJCacheOperationSourceAdvisor.java

@@ -41,6 +41,7 @@ public class BeanFactoryJCacheOperationSourceAdvisor extends AbstractBeanFactory
 		}
 	};
 
+
 	/**
 	 * Set the cache operation attribute source which is used to find cache
 	 * attributes. This should usually be identical to the source reference

spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/DefaultCacheKeyInvocationContext.java

@@ -29,8 +29,8 @@ import org.springframework.lang.Nullable;
  * @since 4.1
  * @param <A> the annotation type
  */
-class DefaultCacheKeyInvocationContext<A extends Annotation>
-		extends DefaultCacheInvocationContext<A> implements CacheKeyInvocationContext<A> {
+class DefaultCacheKeyInvocationContext<A extends Annotation> extends DefaultCacheInvocationContext<A>
+		implements CacheKeyInvocationContext<A> {
 
 	private final CacheInvocationParameter[] keyParameters;
 

spring-context/src/main/java/org/springframework/validation/DataBinder.java

@@ -857,7 +857,7 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
 		Assert.state(target != null, "No target to validate");
 		BindingResult bindingResult = getBindingResult();
 		// Call each validator with the same binding result
-		for (Validator validator : this.validators) {
+		for (Validator validator : getValidators()) {
 			validator.validate(target, bindingResult);
 		}
 	}

spring-web/src/main/java/org/springframework/web/method/annotation/ModelAttributeMethodProcessor.java

@@ -309,8 +309,9 @@ public class ModelAttributeMethodProcessor implements HandlerMethodArgumentResol
 			for (int i = 0; i < paramNames.length; i++) {
 				String paramName = paramNames[i];
 				if (!failedParams.contains(paramName)) {
-					result.recordFieldValue(paramName, paramTypes[i], args[i]);
-					validateValueIfApplicable(binder, parameter, ctor.getDeclaringClass(), paramName, args[i]);
+					Object value = args[i];
+					result.recordFieldValue(paramName, paramTypes[i], value);
+					validateValueIfApplicable(binder, parameter, ctor.getDeclaringClass(), paramName, value);
 				}
 			}
 			throw new BindException(result);
@@ -410,7 +411,10 @@ public class ModelAttributeMethodProcessor implements HandlerMethodArgumentResol
 		Validated validatedAnn = AnnotationUtils.getAnnotation(ann, Validated.class);
 		if (validatedAnn != null || ann.annotationType().getSimpleName().startsWith("Valid")) {
 			Object hints = (validatedAnn != null ? validatedAnn.value() : AnnotationUtils.getValue(ann));
-			return (hints instanceof Object[] ? (Object[]) hints : new Object[]{hints});
+			if (hints == null) {
+				return new Object[0];
+			}
+			return (hints instanceof Object[] ? (Object[]) hints : new Object[] {hints});
 		}
 		return null;
 	}