Polish

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

@@ -20,7 +20,6 @@ import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Properties;
-import java.util.concurrent.TimeUnit;
 
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;

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

@@ -59,9 +59,6 @@ import org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolv
  */
 public class RequestResponseBodyMethodProcessor extends AbstractMessageConverterMethodProcessor {
 
-	private static final List<HttpMethod> SUPPORTED_METHODS =
-			Arrays.asList(HttpMethod.POST, HttpMethod.PUT, HttpMethod.PATCH);
-
 	/**
 	 * Basic constructor with converters only. Suitable for resolving
 	 * {@code @RequestBody}. For handling {@code @ResponseBody} consider also

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/AppCacheManifestTransformer.java

@@ -170,7 +170,7 @@ public class AppCacheManifestTransformer extends ResourceTransformerSupport {
 
 	private class CacheSection implements SectionTransformer {
 
-		private final String COMMENT_DIRECTIVE = "#";
+		private static final String COMMENT_DIRECTIVE = "#";
 
 		@Override
 		public String transform(String line, HashBuilder builder, Resource resource,

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

@@ -199,6 +199,8 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 
 	/**
 	 * Return whether the HTTP 1.0 expires header is used.
+	 *
+	 * @deprecated in favor of {@link #getCacheControl}.
 	 */
 	@Deprecated
 	public final boolean isUseExpiresHeader() {
@@ -220,6 +222,8 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 
 	/**
 	 * Return whether the HTTP 1.1 cache-control header is used.
+	 *
+	 * @deprecated in favor of {@link #getCacheControl}.
 	 */
 	@Deprecated
 	public final boolean isUseCacheControlHeader() {
@@ -240,6 +244,8 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 
 	/**
 	 * Return whether the HTTP 1.1 cache-control header value "no-store" is used.
+	 *
+	 * @deprecated in favor of {@link #getCacheControl}.
 	 */
 	@Deprecated
 	public final boolean isUseCacheControlNoStore() {
@@ -262,6 +268,8 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 
 	/**
 	 * Return whether 'must-revalidate' is added to every Cache-Control header.
+	 *
+	 * @deprecated in favor of {@link #getCacheControl}.
 	 */
 	@Deprecated
 	public boolean isAlwaysMustRevalidate() {
@@ -315,6 +323,17 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 		checkAndPrepare(request, response, this.cacheControl);
 	}
 
+	/**
+	 * * Check and prepare the given request and response according to the settings
+	 * of this generator. Checks for supported methods and a required session,
+	 * and applies the number of cache seconds specified for this generator.
+	 * @param request current HTTP request
+	 * @param response current HTTP response
+	 * @param lastModified whether the underlying handler writes "Last-Modified" headers; in that case,
+	 * a "Cache-Control: must-revalidate" directive is set in the response.
+	 * @throws ServletException if the request cannot be handled because a check failed
+	 * @deprecated in favor of {@link #checkAndPrepare(HttpServletRequest, HttpServletResponse, CacheControl)}.
+	 */
 	@Deprecated
 	protected final void checkAndPrepare(
 			HttpServletRequest request, HttpServletResponse response, boolean lastModified)
@@ -362,12 +381,10 @@ public abstract class WebContentGenerator extends WebApplicationObjectSupport {
 		}
 
 		// Check whether a session is required.
-		if (this.requireSession) {
-			if (request.getSession(false) == null) {
+		if (this.requireSession && request.getSession(false) == null) {
 			throw new HttpSessionRequiredException("Pre-existing session required but none found");
 		}
 	}
-	}
 
 	/**
 	 * Check and prepare the given request and response according to the settings

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/WebContentInterceptorTests.java

@@ -18,7 +18,6 @@ package org.springframework.web.servlet.mvc;
 
 import static org.junit.Assert.*;
 
-import java.util.List;
 import java.util.Properties;
 
 import org.hamcrest.Matchers;