Clean up warnings in spring-web

spring-web/src/main/java/org/springframework/http/HttpHeaders.java

 /*
- * 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.
@@ -38,11 +38,10 @@ import java.util.TimeZone;
 import org.springframework.util.Assert;
 import org.springframework.util.LinkedCaseInsensitiveMap;
 import org.springframework.util.MultiValueMap;
-import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 
 /**
- * Represents HTTP request and response headers, mapping string header names to list of string values.
+ * Represents HTTP request and response headers, mapping string header names to a list of string values.
  *
  * <p>In addition to the normal methods defined by {@link Map}, this class offers the following
  * convenience methods:
@@ -52,7 +51,7 @@ import org.springframework.util.StringUtils;
  * <li>{@link #set(String, String)} sets the header value to a single string value</li>
  * </ul>
  *
- * <p>Inspired by {@link com.sun.net.httpserver.Headers}.
+ * <p>Inspired by {@code com.sun.net.httpserver.Headers}.
  *
  * @author Arjen Poutsma
  * @author Sebastien Deleuze

spring-web/src/main/java/org/springframework/web/client/AsyncRestTemplate.java

@@ -44,7 +44,6 @@ import org.springframework.http.converter.HttpMessageConverter;
 import org.springframework.util.Assert;
 import org.springframework.util.concurrent.ListenableFuture;
 import org.springframework.util.concurrent.ListenableFutureAdapter;
-import org.springframework.web.util.DefaultUriTemplateHandler;
 import org.springframework.web.util.UriTemplateHandler;
 
 /**

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilderTests.java

 /*
- * 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.
@@ -80,6 +80,7 @@ import static org.junit.Assert.*;
  *
  * @author Sebastien Deleuze
  */
+@SuppressWarnings("deprecation")
 public class Jackson2ObjectMapperBuilderTests {
 
 	private static final String DATE_FORMAT = "yyyy-MM-dd";

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBeanTests.java

 /*
- * 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.
@@ -76,6 +76,7 @@ import static org.junit.Assert.*;
  * @author Sebastien Deleuze
  * @author Sam Brannen
  */
+@SuppressWarnings("deprecation")
 public class Jackson2ObjectMapperFactoryBeanTests {
 
 	private static final String DATE_FORMAT = "yyyy-MM-dd";

spring-web/src/test/java/org/springframework/web/client/AsyncRestTemplateIntegrationTests.java

 /*
- * 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.
@@ -618,7 +618,6 @@ public class AsyncRestTemplateIntegrationTests extends AbstractJettyServerTestCa
 		assertNull(interceptor.exception);
 	}
 
-	@SuppressWarnings("StatementWithEmptyBody")
 	private void waitTillDone(ListenableFuture<?> future) {
 		while (!future.isDone()) {
 		}

spring-web/src/test/java/org/springframework/web/method/annotation/RequestParamMethodArgumentResolverTests.java

@@ -474,7 +474,6 @@ public class RequestParamMethodArgumentResolverTests {
 	}
 
 
-	@SuppressWarnings("unused")
 	public void handle(
 			@RequestParam(name = "name", defaultValue = "bar") String param1,
 			@RequestParam("name") String[] param2,

spring-web/src/test/java/org/springframework/web/util/UriTemplateTests.java

@@ -50,7 +50,7 @@ public class UriTemplateTests {
 
 	// SPR-9712
 
-	@Test @SuppressWarnings("PrimitiveArrayArgumentToVariableArgMethod")
+	@Test
 	public void expandVarArgsWithArrayValue() throws Exception {
 		UriTemplate template = new UriTemplate("/sum?numbers={numbers}");
 		URI result = template.expand(new int[] {1, 2, 3});