Polishing

(cherry picked from commit 3783591)

spring-context/src/main/java/org/springframework/cache/annotation/AbstractCachingConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -17,7 +17,6 @@
 package org.springframework.cache.annotation;
 
 import java.util.Collection;
-import javax.annotation.PostConstruct;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.CacheManager;
@@ -28,12 +27,11 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.ImportAware;
 import org.springframework.core.annotation.AnnotationAttributes;
 import org.springframework.core.type.AnnotationMetadata;
-import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 
 /**
- * Abstract base {@code @Configuration} class providing common structure for enabling
- * Spring's annotation-driven cache management capability.
+ * Abstract base {@code @Configuration} class providing common structure
+ * for enabling Spring's annotation-driven cache management capability.
  *
  * @author Chris Beams
  * @author Stephane Nicoll
@@ -53,13 +51,15 @@ public abstract class AbstractCachingConfiguration<C extends CachingConfigurer>
 
 	protected CacheErrorHandler errorHandler;
 
+
 	@Override
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		this.enableCaching = AnnotationAttributes.fromMap(
 				importMetadata.getAnnotationAttributes(EnableCaching.class.getName(), false));
-		Assert.notNull(this.enableCaching,
-				"@EnableCaching is not present on importing class " +
-						importMetadata.getClassName());
+		if (this.enableCaching == null) {
+			throw new IllegalArgumentException(
+					"@EnableCaching is not present on importing class " + importMetadata.getClassName());
+		}
 	}
 
 	@Autowired(required = false)

spring-context/src/main/java/org/springframework/context/annotation/MBeanExportConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -51,7 +51,7 @@ public class MBeanExportConfiguration implements ImportAware, EnvironmentAware,
 
 	private static final String MBEAN_EXPORTER_BEAN_NAME = "mbeanExporter";
 
-	private AnnotationAttributes attributes;
+	private AnnotationAttributes enableMBeanExport;
 
 	private Environment environment;
 
@@ -61,8 +61,8 @@ public class MBeanExportConfiguration implements ImportAware, EnvironmentAware,
 	@Override
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		Map<String, Object> map = importMetadata.getAnnotationAttributes(EnableMBeanExport.class.getName());
-		this.attributes = AnnotationAttributes.fromMap(map);
-		if (this.attributes == null) {
+		this.enableMBeanExport = AnnotationAttributes.fromMap(map);
+		if (this.enableMBeanExport == null) {
 			throw new IllegalArgumentException(
 					"@EnableMBeanExport is not present on importing class " + importMetadata.getClassName());
 		}
@@ -90,7 +90,7 @@ public class MBeanExportConfiguration implements ImportAware, EnvironmentAware,
 	}
 
 	private void setupDomain(AnnotationMBeanExporter exporter) {
-		String defaultDomain = this.attributes.getString("defaultDomain");
+		String defaultDomain = this.enableMBeanExport.getString("defaultDomain");
 		if (defaultDomain != null && this.environment != null) {
 			defaultDomain = this.environment.resolvePlaceholders(defaultDomain);
 		}
@@ -100,7 +100,7 @@ public class MBeanExportConfiguration implements ImportAware, EnvironmentAware,
 	}
 
 	private void setupServer(AnnotationMBeanExporter exporter) {
-		String server = this.attributes.getString("server");
+		String server = this.enableMBeanExport.getString("server");
 		if (server != null && this.environment != null) {
 			server = this.environment.resolvePlaceholders(server);
 		}
@@ -116,7 +116,7 @@ public class MBeanExportConfiguration implements ImportAware, EnvironmentAware,
 	}
 
 	private void setupRegistrationPolicy(AnnotationMBeanExporter exporter) {
-		RegistrationPolicy registrationPolicy = this.attributes.getEnum("registration");
+		RegistrationPolicy registrationPolicy = this.enableMBeanExport.getEnum("registration");
 		exporter.setRegistrationPolicy(registrationPolicy);
 	}
 

spring-context/src/main/java/org/springframework/scheduling/annotation/AbstractAsyncConfiguration.java

@@ -25,7 +25,6 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.ImportAware;
 import org.springframework.core.annotation.AnnotationAttributes;
 import org.springframework.core.type.AnnotationMetadata;
-import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 
 /**
@@ -51,8 +50,10 @@ public abstract class AbstractAsyncConfiguration implements ImportAware {
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		this.enableAsync = AnnotationAttributes.fromMap(
 				importMetadata.getAnnotationAttributes(EnableAsync.class.getName(), false));
-		Assert.notNull(this.enableAsync,
-				"@EnableAsync is not present on importing class " + importMetadata.getClassName());
+		if (this.enableAsync == null) {
+			throw new IllegalArgumentException(
+					"@EnableAsync is not present on importing class " + importMetadata.getClassName());
+		}
 	}
 
 	/**