Polishing

(cherry picked from commit 67ba187)

spring-context/src/main/java/org/springframework/cache/interceptor/AbstractCacheInvoker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2016 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.
@@ -31,14 +31,16 @@ public abstract class AbstractCacheInvoker {
 
 	private CacheErrorHandler errorHandler;
 
+
+	protected AbstractCacheInvoker() {
+		this(new SimpleCacheErrorHandler());
+	}
+
 	protected AbstractCacheInvoker(CacheErrorHandler errorHandler) {
 		Assert.notNull("ErrorHandler must not be null");
 		this.errorHandler = errorHandler;
 	}
 
-	protected AbstractCacheInvoker() {
-		 this(new SimpleCacheErrorHandler());
-	}
 
 	/**
 	 * Set the {@link CacheErrorHandler} instance to use to handle errors
@@ -56,6 +58,7 @@ public abstract class AbstractCacheInvoker {
 		return this.errorHandler;
 	}
 
+
 	/**
 	 * Execute {@link Cache#get(Object)} on the specified {@link Cache} and
 	 * invoke the error handler if an exception occurs. Return {@code null}
@@ -67,9 +70,9 @@ public abstract class AbstractCacheInvoker {
 		try {
 			return cache.get(key);
 		}
-		catch (RuntimeException e) {
-			getErrorHandler().handleCacheGetError(e, cache, key);
-			return null; // If the exception is handled, return a cache miss
+		catch (RuntimeException ex) {
+			getErrorHandler().handleCacheGetError(ex, cache, key);
+			return null;  // If the exception is handled, return a cache miss
 		}
 	}
 
@@ -81,8 +84,8 @@ public abstract class AbstractCacheInvoker {
 		try {
 			cache.put(key, result);
 		}
-		catch (RuntimeException e) {
-			getErrorHandler().handleCachePutError(e, cache, key, result);
+		catch (RuntimeException ex) {
+			getErrorHandler().handleCachePutError(ex, cache, key, result);
 		}
 	}
 
@@ -94,8 +97,8 @@ public abstract class AbstractCacheInvoker {
 		try {
 			cache.evict(key);
 		}
-		catch (RuntimeException e) {
-			getErrorHandler().handleCacheEvictError(e, cache, key);
+		catch (RuntimeException ex) {
+			getErrorHandler().handleCacheEvictError(ex, cache, key);
 		}
 	}
 
@@ -107,8 +110,8 @@ public abstract class AbstractCacheInvoker {
 		try {
 			cache.clear();
 		}
-		catch (RuntimeException e) {
-			getErrorHandler().handleCacheClearError(e, cache);
+		catch (RuntimeException ex) {
+			getErrorHandler().handleCacheClearError(ex, cache);
 		}
 	}
 

spring-context/src/main/java/org/springframework/cache/interceptor/CacheAspectSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2016 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.
@@ -76,13 +76,10 @@ import org.springframework.util.StringUtils;
  * @since 3.1
  */
 public abstract class CacheAspectSupport extends AbstractCacheInvoker
-		implements InitializingBean, SmartInitializingSingleton, ApplicationContextAware {
+		implements ApplicationContextAware, InitializingBean, SmartInitializingSingleton {
 
 	protected final Log logger = LogFactory.getLog(getClass());
 
-	/**
-	 * Cache of CacheOperationMetadata, keyed by {@link CacheOperationCacheKey}.
-	 */
 	private final Map<CacheOperationCacheKey, CacheOperationMetadata> metadataCache =
 			new ConcurrentHashMap<CacheOperationCacheKey, CacheOperationMetadata>(1024);
 
@@ -273,7 +270,7 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
 	 * Return a bean with the specified name and type. Used to resolve services that
 	 * are referenced by name in a {@link CacheOperation}.
 	 * @param beanName the name of the bean, as defined by the operation
-	 * @param expectedType type type for the bean
+	 * @param expectedType type for the bean
 	 * @return the bean matching that name
 	 * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException if such bean does not exist
 	 * @see CacheOperation#keyGenerator
@@ -293,8 +290,7 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
 	}
 
 	protected Object execute(CacheOperationInvoker invoker, Object target, Method method, Object[] args) {
-		// check whether aspect is enabled
-		// to cope with cases where the AJ is pulled in automatically
+		// Check whether aspect is enabled (to cope with cases where the AJ is pulled in automatically)
 		if (this.initialized) {
 			Class<?> targetClass = getTargetClass(target);
 			Collection<CacheOperation> operations = getCacheOperationSource().getCacheOperations(method, targetClass);
@@ -377,7 +373,7 @@ public abstract class CacheAspectSupport extends AbstractCacheInvoker
 					excluded.add(context);
 				}
 			}
-			catch (VariableNotAvailableException e) {
+			catch (VariableNotAvailableException ex) {
 				// Ignoring failure due to missing result, consider the cache put has to proceed
 			}
 		}