Polish spring-context

- Cache interceptor internals now operate on collections of
   <? extends Cache> instead of <Cache>.
 - Deleted unused imports.
 - Deleted dead code.
 - Suppressed warnings for resource leaks related to not closing
   ApplicationContexts in tests.
 - Suppressed further non-issue warnings in tests.

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

@@ -61,6 +61,7 @@ import org.springframework.util.StringUtils;
  * @author Juergen Hoeller
  * @author Chris Beams
  * @author Phillip Webb
+ * @author Sam Brannen
  * @since 3.1
  */
 public abstract class CacheAspectSupport implements InitializingBean {
@@ -148,7 +149,7 @@ public abstract class CacheAspectSupport implements InitializingBean {
 		return ClassUtils.getQualifiedMethodName(specificMethod);
 	}
 
-	protected Collection<Cache> getCaches(CacheOperation operation) {
+	protected Collection<? extends Cache> getCaches(CacheOperation operation) {
 		Set<String> cacheNames = operation.getCacheNames();
 		Collection<Cache> caches = new ArrayList<Cache>(cacheNames.size());
 		for (String cacheName : cacheNames) {
@@ -346,7 +347,7 @@ public abstract class CacheAspectSupport implements InitializingBean {
 
 		private final Class<?> targetClass;
 
-		private final Collection<Cache> caches;
+		private final Collection<? extends Cache> caches;
 
 		public CacheOperationContext(CacheOperation operation, Method method,
 				Object[] args, Object target, Class<?> targetClass) {
@@ -408,7 +409,7 @@ public abstract class CacheAspectSupport implements InitializingBean {
 			return evaluator.createEvaluationContext(this.caches, this.method, this.args, this.target, this.targetClass, result);
 		}
 
-		protected Collection<Cache> getCaches() {
+		protected Collection<? extends Cache> getCaches() {
 			return this.caches;
 		}
 	}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -24,13 +24,14 @@ import org.springframework.util.Assert;
 
 /**
  * Class describing the root object used during the expression evaluation.
- *
+ * 
  * @author Costin Leau
+ * @author Sam Brannen
  * @since 3.1
  */
 class CacheExpressionRootObject {
 
-	private final Collection<Cache> caches;
+	private final Collection<? extends Cache> caches;
 
 	private final Method method;
 
@@ -42,7 +43,7 @@ class CacheExpressionRootObject {
 
 
 	public CacheExpressionRootObject(
-			Collection<Cache> caches, Method method, Object[] args, Object target, Class<?> targetClass) {
+			Collection<? extends Cache> caches, Method method, Object[] args, Object target, Class<?> targetClass) {
 
 		Assert.notNull(method, "Method is required");
 		Assert.notNull(targetClass, "targetClass is required");
@@ -54,7 +55,7 @@ class CacheExpressionRootObject {
 	}
 
 
-	public Collection<Cache> getCaches() {
+	public Collection<? extends Cache> getCaches() {
 		return this.caches;
 	}
 

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

@@ -36,6 +36,7 @@ import org.springframework.expression.spel.standard.SpelExpressionParser;
  *
  * @author Costin Leau
  * @author Phillip Webb
+ * @author Sam Brannen
  * @since 3.1
  */
 class ExpressionEvaluator {
@@ -61,7 +62,7 @@ class ExpressionEvaluator {
 	 * Create an {@link EvaluationContext} without a return value.
 	 * @see #createEvaluationContext(Collection, Method, Object[], Object, Class, Object)
 	 */
-	public EvaluationContext createEvaluationContext(Collection<Cache> caches,
+	public EvaluationContext createEvaluationContext(Collection<? extends Cache> caches,
 			Method method, Object[] args, Object target, Class<?> targetClass) {
 		return createEvaluationContext(caches, method, args, target, targetClass,
 				NO_RESULT);
@@ -77,9 +78,9 @@ class ExpressionEvaluator {
 	 * @param targetClass the target class
 	 * @param result the return value (can be {@code null}) or
 	 *        {@link #NO_RESULT} if there is no return at this time
-	 * @return the evalulation context
+	 * @return the evaluation context
 	 */
-	public EvaluationContext createEvaluationContext(Collection<Cache> caches,
+	public EvaluationContext createEvaluationContext(Collection<? extends Cache> caches,
 			Method method, Object[] args, Object target, Class<?> targetClass,
 			final Object result) {
 		CacheExpressionRootObject rootObject = new CacheExpressionRootObject(caches,

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

@@ -511,8 +511,6 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 	 */
 	private class ResourceElement extends LookupElement {
 
-		protected final boolean shareable;
-
 		public ResourceElement(Member member, PropertyDescriptor pd) {
 			super(member, pd);
 			AnnotatedElement ae = (AnnotatedElement) member;
@@ -539,7 +537,6 @@ public class CommonAnnotationBeanPostProcessor extends InitDestroyAnnotationBean
 			this.name = resourceName;
 			this.lookupType = resourceType;
 			this.mappedName = resource.mappedName();
-			this.shareable = resource.shareable();
 		}
 
 		@Override

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

@@ -29,7 +29,6 @@ import org.springframework.core.env.EnvironmentCapable;
 import org.springframework.core.io.ResourceLoader;
 import org.springframework.core.type.AnnotatedTypeMetadata;
 import org.springframework.core.type.AnnotationMetadata;
-import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.MultiValueMap;
 

spring-context/src/main/java/org/springframework/context/weaving/DefaultContextLoadTimeWeaver.java

@@ -53,7 +53,6 @@ import org.springframework.instrument.classloading.websphere.WebSphereLoadTimeWe
  * @since 2.5
  * @see org.springframework.context.ConfigurableApplicationContext#LOAD_TIME_WEAVER_BEAN_NAME
  */
-@SuppressWarnings("deprecation")
 public class DefaultContextLoadTimeWeaver implements LoadTimeWeaver, BeanClassLoaderAware, DisposableBean {
 
 	protected final Log logger = LogFactory.getLog(getClass());

spring-context/src/main/java/org/springframework/scheduling/support/MethodInvokingRunnable.java

@@ -51,7 +51,7 @@ public class MethodInvokingRunnable extends ArgumentConvertingMethodInvoker
 	}
 
 	@Override
-	protected Class resolveClassName(String className) throws ClassNotFoundException {
+	protected Class<?> resolveClassName(String className) throws ClassNotFoundException {
 		return ClassUtils.forName(className, this.beanClassLoader);
 	}
 

spring-context/src/main/java/org/springframework/scripting/groovy/GroovyScriptEvaluator.java

@@ -1,7 +1,6 @@
 package org.springframework.scripting.groovy;
 
 import java.io.IOException;
-import java.util.Collections;
 import java.util.Map;
 
 import groovy.lang.Binding;

spring-context/src/main/java/org/springframework/scripting/support/ResourceScriptSource.java

@@ -17,7 +17,6 @@
 package org.springframework.scripting.support;
 
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.Reader;
 
 import org.apache.commons.logging.Log;

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

@@ -127,8 +127,6 @@ public class DataBinder implements PropertyEditorRegistry, TypeConverter {
 
 	private SimpleTypeConverter typeConverter;
 
-	private BindException bindException;
-
 	private boolean ignoreUnknownFields = true;
 
 	private boolean ignoreInvalidFields = false;

spring-context/src/test/java/org/springframework/aop/aspectj/BeanNamePointcutAtAspectTests.java

@@ -37,21 +37,17 @@ import org.springframework.context.support.ClassPathXmlApplicationContext;
 public final class BeanNamePointcutAtAspectTests {
 
 	private ITestBean testBean1;
-
-	private ITestBean testBean2;
-
 	private ITestBean testBean3;
-
 	private CounterAspect counterAspect;
 
 
 	@org.junit.Before
+	@SuppressWarnings("resource")
 	public void setUp() {
 		ClassPathXmlApplicationContext ctx =
 			new ClassPathXmlApplicationContext(getClass().getSimpleName() + ".xml", getClass());
 		counterAspect = (CounterAspect) ctx.getBean("counterAspect");
 		testBean1 = (ITestBean) ctx.getBean("testBean1");
-		testBean2 = (ITestBean) ctx.getBean("testBean2");
 		testBean3 = (ITestBean) ctx.getBean("testBean3");
 	}
 

spring-context/src/test/java/org/springframework/aop/aspectj/DeclarationOrderIndependenceTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -38,6 +38,7 @@ public final class DeclarationOrderIndependenceTests {
 
 
 	@Before
+	@SuppressWarnings("resource")
 	public void setUp() {
 		ClassPathXmlApplicationContext ctx =
 			new ClassPathXmlApplicationContext(getClass().getSimpleName() + ".xml", getClass());
@@ -83,11 +84,9 @@ public final class DeclarationOrderIndependenceTests {
 	/** public visibility is required */
 	public static class BeanNameAwareMixin implements BeanNameAware {
 
+		@SuppressWarnings("unused")
 		private String beanName;
 
-		/* (non-Javadoc)
-		 * @see org.springframework.beans.factory.BeanNameAware#setBeanName(java.lang.String)
-		 */
 		@Override
 		public void setBeanName(String name) {
 			this.beanName = name;
@@ -146,17 +145,11 @@ class TopsyTurvyTargetImpl implements TopsyTurvyTarget {
 
 	private int x = 5;
 
-	/* (non-Javadoc)
-	 * @see org.springframework.aop.aspectj.TopsyTurvyTarget#doSomething()
-	 */
 	@Override
 	public void doSomething() {
 		this.x = 10;
 	}
 
-	/* (non-Javadoc)
-	 * @see org.springframework.aop.aspectj.TopsyTurvyTarget#getX()
-	 */
 	@Override
 	public int getX() {
 		return x;
@@ -171,25 +164,16 @@ class AspectCollaborator implements TopsyTurvyAspect.Collaborator {
 	public boolean aroundFired = false;
 	public boolean beforeFired = false;
 
-	/* (non-Javadoc)
-	 * @see org.springframework.aop.aspectj.TopsyTurvyAspect.Collaborator#afterReturningAdviceFired()
-	 */
 	@Override
 	public void afterReturningAdviceFired() {
 		this.afterReturningFired = true;
 	}
 
-	/* (non-Javadoc)
-	 * @see org.springframework.aop.aspectj.TopsyTurvyAspect.Collaborator#aroundAdviceFired()
-	 */
 	@Override
 	public void aroundAdviceFired() {
 		this.aroundFired = true;
 	}
 
-	/* (non-Javadoc)
-	 * @see org.springframework.aop.aspectj.TopsyTurvyAspect.Collaborator#beforeAdviceFired()
-	 */
 	@Override
 	public void beforeAdviceFired() {
 		this.beforeFired = true;

spring-context/src/test/java/org/springframework/aop/aspectj/DeclareParentsTests.java

@@ -39,8 +39,6 @@ public final class DeclareParentsTests {
 
 	private ITestBean testBeanProxy;
 
-	private TestBean testBeanTarget;
-
 	private ApplicationContext ctx;
 
 	@Before
@@ -49,9 +47,6 @@ public final class DeclareParentsTests {
 
 		testBeanProxy = (ITestBean) ctx.getBean("testBean");
 		assertTrue(AopUtils.isAopProxy(testBeanProxy));
-
-		// we need the real target too, not just the proxy...
-		testBeanTarget = (TestBean) ((Advised) testBeanProxy).getTargetSource().getTarget();
 	}
 
 	@Test

spring-context/src/test/java/org/springframework/aop/framework/AbstractAopProxyTests.java

@@ -1776,7 +1776,6 @@ public abstract class AbstractAopProxyTests {
 	protected static class TestStaticPointcutAdvice extends StaticMethodMatcherPointcutAdvisor {
 
 		private String pattern;
-		private int count;
 
 		public TestStaticPointcutAdvice(MethodInterceptor mi, String pattern) {
 			super(mi);
@@ -1784,9 +1783,7 @@ public abstract class AbstractAopProxyTests {
 		}
 		@Override
 		public boolean matches(Method m, Class<?> targetClass) {
-			boolean run = m.getName().indexOf(pattern) != -1;
-			if (run) ++count;
-			return run;
+			return m.getName().indexOf(pattern) != -1;
 		}
 	}
 

spring-context/src/test/java/org/springframework/aop/framework/autoproxy/AdvisorAutoProxyCreatorTests.java

@@ -49,6 +49,7 @@ import test.mixin.Lockable;
  * @author Dave Syer
  * @author Chris Beams
  */
+@SuppressWarnings("resource")
 public final class AdvisorAutoProxyCreatorTests {
 
 	private static final Class<?> CLASS = AdvisorAutoProxyCreatorTests.class;
@@ -60,9 +61,6 @@ public final class AdvisorAutoProxyCreatorTests {
 	private static final String QUICK_TARGETSOURCE_CONTEXT = CLASSNAME + "-quick-targetsource.xml";
 	private static final String OPTIMIZED_CONTEXT = CLASSNAME + "-optimized.xml";
 
-	private static final String ADVISOR_APC_BEAN_NAME = "aapc";
-	private static final String TXMANAGER_BEAN_NAME = "txManager";
-
 	/**
 	 * Return a bean factory with attributes and EnterpriseServices configured.
 	 */

spring-context/src/test/java/org/springframework/cache/interceptor/ExpressionEvaluatorTests.java

@@ -24,7 +24,6 @@ import java.util.Iterator;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
-
 import org.springframework.cache.annotation.AnnotationCacheOperationSource;
 import org.springframework.cache.annotation.Cacheable;
 import org.springframework.cache.annotation.Caching;
@@ -39,6 +38,7 @@ import static org.junit.Assert.*;
 /**
  * @author Costin Leau
  * @author Phillip Webb
+ * @author Sam Brannen
  */
 public class ExpressionEvaluatorTests {
 
@@ -70,13 +70,12 @@ public class ExpressionEvaluatorTests {
 	}
 
 	@Test
-	@SuppressWarnings("unchecked")
 	public void testMultipleCachingEval() throws Exception {
 		AnnotatedClass target = new AnnotatedClass();
 		Method method = ReflectionUtils.findMethod(AnnotatedClass.class, "multipleCaching", Object.class,
 				Object.class);
 		Object[] args = new Object[] { new Object(), new Object() };
-		Collection caches = Collections.singleton(new ConcurrentMapCache("test"));
+		Collection<ConcurrentMapCache> caches = Collections.singleton(new ConcurrentMapCache("test"));
 
 		EvaluationContext evalCtx = eval.createEvaluationContext(caches, method, args, target, target.getClass());
 		Collection<CacheOperation> ops = getOps("multipleCaching");
@@ -116,8 +115,7 @@ public class ExpressionEvaluatorTests {
 		Method method = ReflectionUtils.findMethod(AnnotatedClass.class, "multipleCaching", Object.class,
 				Object.class);
 		Object[] args = new Object[] { new Object(), new Object() };
-		@SuppressWarnings("unchecked")
-		Collection caches = Collections.singleton(new ConcurrentMapCache("test"));
+		Collection<ConcurrentMapCache> caches = Collections.singleton(new ConcurrentMapCache("test"));
 		EvaluationContext context = eval.createEvaluationContext(caches, method, args, target, target.getClass(), result);
 		return context;
 	}

spring-context/src/test/java/org/springframework/context/annotation/BeanMethodPolymorphismTests.java

@@ -20,9 +20,6 @@ import java.util.List;
 
 import org.junit.Test;
 
-import org.springframework.beans.factory.support.DefaultListableBeanFactory;
-import org.springframework.beans.factory.support.RootBeanDefinition;
-
 import static org.hamcrest.CoreMatchers.*;
 import static org.junit.Assert.*;
 
@@ -34,6 +31,7 @@ import static org.junit.Assert.*;
  * @author Phillip Webb
  * @author Juergen Hoeller
  */
+@SuppressWarnings("resource")
 public class BeanMethodPolymorphismTests {
 
 	@Test

spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorTests.java

@@ -120,8 +120,8 @@ public class ConfigurationClassPostProcessorTests {
 		beanFactory.registerBeanDefinition("config", new RootBeanDefinition(SingletonBeanConfig.class));
 		ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
 		pp.postProcessBeanFactory(beanFactory);
-		Foo foo = beanFactory.getBean("foo", Foo.class);
-		TestBean bar = beanFactory.getBean("bar", TestBean.class);
+		beanFactory.getBean("foo", Foo.class);
+		beanFactory.getBean("bar", TestBean.class);
 	}
 
 	@Test

spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassSpr8954Tests.java

@@ -19,10 +19,8 @@ package org.springframework.context.annotation;
 import java.util.Map;
 
 import org.junit.Test;
-
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessorAdapter;
-import org.springframework.beans.factory.support.DefaultListableBeanFactory;
 import org.springframework.beans.factory.support.RootBeanDefinition;
 
 import static org.hamcrest.CoreMatchers.*;
@@ -39,6 +37,7 @@ import static org.junit.Assert.*;
  * @author Chris Beams
  * @author Oliver Gierke
  */
+@SuppressWarnings("resource")
 public class ConfigurationClassSpr8954Tests {
 
 	@Test

spring-context/src/test/java/org/springframework/context/annotation/FooServiceDependentConverter.java

@@ -25,6 +25,7 @@ import org.springframework.core.convert.converter.Converter;
  */
 public class FooServiceDependentConverter implements Converter<String, org.springframework.tests.sample.beans.TestBean> {
 
+	@SuppressWarnings("unused")
 	private FooService fooService;
 
 	public void setFooService(FooService fooService) {

spring-context/src/test/java/org/springframework/context/annotation/ReflectionUtilsIntegrationTests.java

@@ -23,7 +23,6 @@ import static org.junit.Assert.assertThat;
 import java.lang.reflect.Method;
 
 import org.junit.Test;
-import org.springframework.beans.factory.support.DefaultListableBeanFactory;
 import org.springframework.util.ReflectionUtils;
 
 /**

spring-context/src/test/java/org/springframework/context/annotation/configuration/ImportAnnotationDetectionTests.java

@@ -25,15 +25,12 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import org.junit.Test;
-import org.springframework.stereotype.Service;
 import org.springframework.tests.sample.beans.TestBean;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
 
-import static org.junit.Assert.*;
-
 /**
  * Tests that @Import may be used both as a locally declared and meta-declared
  * annotation, that all declarations are processed, and that any local declaration
@@ -42,6 +39,7 @@ import static org.junit.Assert.*;
  * @author Chris Beams
  * @since 3.1
  */
+@SuppressWarnings("resource")
 public class ImportAnnotationDetectionTests {
 
 	@Test

spring-context/src/test/java/org/springframework/context/support/Assembler.java

@@ -21,6 +21,7 @@ package org.springframework.context.support;
  */
 public class Assembler implements TestIF {
 
+	@SuppressWarnings("unused")
 	private Service service;
 	private Logic l;
 	private String name;

spring-context/src/test/java/org/springframework/context/support/ClassPathXmlApplicationContextTests.java

@@ -69,7 +69,6 @@ public final class ClassPathXmlApplicationContextTests {
 	private static final String ALIAS_THAT_OVERRIDES_PARENT_CONTEXT = PATH + "aliasThatOverridesParent.xml";
 	private static final String ALIAS_FOR_PARENT_CONTEXT = PATH + "aliasForParent.xml";
 	private static final String TEST_PROPERTIES = "test.properties";
-	private static final String FQ_TEST_PROPERTIES = "classpath:org/springframework/beans/factory/xml/" + TEST_PROPERTIES;
 
 
 	@Test

spring-context/src/test/java/org/springframework/context/support/Logic.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -16,24 +16,20 @@
 
 package org.springframework.context.support;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.springframework.beans.factory.BeanNameAware;
 
 
 public class Logic implements BeanNameAware {
 
-	private Log log = LogFactory.getLog(Logic.class);
 	private String name;
+
+	@SuppressWarnings("unused")
 	private Assembler a;
 
 	public void setAssembler(Assembler a) {
 		this.a = a;
 	}
 
-	/* (non-Javadoc)
-	 * @see org.springframework.beans.factory.BeanNameAware#setBeanName(java.lang.String)
-	 */
 	@Override
 	public void setBeanName(String name) {
 		this.name = name;

spring-context/src/test/java/org/springframework/format/datetime/standard/DateTimeFormattingTests.java

@@ -292,7 +292,6 @@ public class DateTimeFormattingTests {
 	}
 
 
-	@SuppressWarnings("unused")
 	public static class DateTimeBean {
 
 		private LocalDate localDate;

spring-context/src/test/java/org/springframework/scripting/groovy/GroovyScriptFactoryTests.java

@@ -22,10 +22,10 @@ import java.util.Map;
 
 import groovy.lang.DelegatingMetaClass;
 import groovy.lang.GroovyObject;
+
 import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Test;
-
 import org.springframework.aop.support.AopUtils;
 import org.springframework.aop.target.dynamic.Refreshable;
 import org.springframework.beans.factory.BeanCreationException;
@@ -61,6 +61,7 @@ import static org.mockito.BDDMockito.*;
  * @author Mark Fisher
  * @author Chris Beams
  */
+@SuppressWarnings("resource")
 public class GroovyScriptFactoryTests {
 
 	@Before