Clean up warnings across code base

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -74,7 +74,6 @@ import org.springframework.web.method.support.HandlerMethodArgumentResolver;
 import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
 import org.springframework.web.servlet.HandlerAdapter;
 import org.springframework.web.servlet.HandlerExceptionResolver;
-import org.springframework.web.servlet.HandlerInterceptor;
 import org.springframework.web.servlet.HandlerMapping;
 import org.springframework.web.servlet.ViewResolver;
 import org.springframework.web.servlet.handler.AbstractHandlerMapping;

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ConsumesRequestCondition.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -28,8 +28,6 @@ import javax.servlet.http.HttpServletRequest;
 import org.springframework.http.InvalidMediaTypeException;
 import org.springframework.http.MediaType;
 import org.springframework.util.StringUtils;
-import org.springframework.web.HttpMediaTypeException;
-import org.springframework.web.HttpMediaTypeNotSupportedException;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.cors.CorsUtils;
 import org.springframework.web.servlet.mvc.condition.HeadersRequestCondition.HeaderExpression;

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -28,7 +28,6 @@ import java.util.concurrent.ConcurrentHashMap;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
-import javax.xml.transform.Source;
 
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.BeanFactoryAware;

spring-webmvc/src/main/java/org/springframework/web/servlet/support/WebContentGenerator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -30,7 +30,6 @@ import javax.servlet.http.HttpServletResponse;
 import org.springframework.http.CacheControl;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
-import org.springframework.util.ClassUtils;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 import org.springframework.web.HttpRequestMethodNotSupportedException;

spring-webmvc/src/main/java/org/springframework/web/servlet/view/xslt/XsltView.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -44,7 +44,6 @@ import org.w3c.dom.Node;
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContextException;
 import org.springframework.core.io.Resource;
-import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.ReflectionUtils;
 import org.springframework.util.StringUtils;

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/StreamingResponseBodyReturnValueHandlerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.web.servlet.mvc.method.annotation;
 
 import java.lang.reflect.Method;
-import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.concurrent.CountDownLatch;

spring-webmvc/src/test/java/org/springframework/web/servlet/resource/AppCacheManifestTransformerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -16,7 +16,6 @@
 
 package org.springframework.web.servlet.resource;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;

spring-webmvc/src/test/java/org/springframework/web/servlet/view/feed/RssFeedViewTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2016 the original author or authors.
+ * Copyright 2002-2017 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.
@@ -19,11 +19,11 @@ package org.springframework.web.servlet.view.feed;
 import com.rometools.rome.feed.rss.Channel;
 import com.rometools.rome.feed.rss.Description;
 import com.rometools.rome.feed.rss.Item;
-import org.junit.Before;
+
 import org.junit.Test;
+
 import org.springframework.mock.web.test.MockHttpServletRequest;
 import org.springframework.mock.web.test.MockHttpServletResponse;
-import org.xmlunit.matchers.CompareMatcher;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -41,12 +41,8 @@ import static org.xmlunit.matchers.CompareMatcher.isSimilarTo;
  */
 public class RssFeedViewTests {
 
-	private AbstractRssFeedView view;
+	private final AbstractRssFeedView view = new MyRssFeedView();
 
-	@Before
-	public void createView() throws Exception {
-		view = new MyRssFeedView();
-	}
 
 	@Test
 	public void render() throws Exception {
@@ -70,7 +66,7 @@ public class RssFeedViewTests {
 	private static class MyRssFeedView extends AbstractRssFeedView {
 
 		@Override
-		protected void buildFeedMetadata(Map model, Channel channel, HttpServletRequest request) {
+		protected void buildFeedMetadata(Map<String, Object> model, Channel channel, HttpServletRequest request) {
 			channel.setTitle("Test Feed");
 			channel.setDescription("Test feed description");
 			channel.setLink("http://example.com");