Polishing

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -144,7 +144,6 @@ public final class ResponseCookie extends HttpCookie {
 			long millis = this.maxAge.getSeconds() > 0 ? System.currentTimeMillis() + this.maxAge.toMillis() : 0;
 			sb.append(HttpHeaders.formatDate(millis));
 		}
-
 		if (this.secure) {
 			sb.append("; Secure");
 		}
@@ -160,7 +159,7 @@ public final class ResponseCookie extends HttpCookie {
 	 * with a name-value pair and may also include attributes.
 	 * @param name the cookie name
 	 * @param value the cookie value
-	 * @return the created cookie instance
+	 * @return a builder to create the cookie with
 	 */
 	public static ResponseCookieBuilder from(final String name, final String value) {
 

spring-web/src/main/java/org/springframework/http/codec/json/AbstractJackson2Decoder.java

@@ -74,7 +74,7 @@ public abstract class AbstractJackson2Decoder extends Jackson2CodecSupport imple
 
 	@Override
 	public boolean canDecode(ResolvableType elementType, @Nullable MimeType mimeType) {
-		JavaType javaType = getObjectMapper().getTypeFactory().constructType(elementType.getType());
+		JavaType javaType = getObjectMapper().constructType(elementType.getType());
 		// Skip String: CharSequenceDecoder + "*/*" comes after
 		return (!CharSequence.class.isAssignableFrom(elementType.resolve(Object.class)) &&
 				getObjectMapper().canDeserialize(javaType) && supportsMimeType(mimeType));

spring-web/src/main/java/org/springframework/http/codec/json/Jackson2CodecSupport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -27,7 +27,6 @@ import java.util.Map;
 import com.fasterxml.jackson.annotation.JsonView;
 import com.fasterxml.jackson.databind.JavaType;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.type.TypeFactory;
 
 import org.springframework.core.GenericTypeResolver;
 import org.springframework.core.MethodParameter;
@@ -95,8 +94,7 @@ public abstract class Jackson2CodecSupport {
 	}
 
 	protected JavaType getJavaType(Type type, @Nullable Class<?> contextClass) {
-		TypeFactory typeFactory = this.objectMapper.getTypeFactory();
-		return typeFactory.constructType(GenericTypeResolver.resolveType(type, contextClass));
+		return this.objectMapper.constructType(GenericTypeResolver.resolveType(type, contextClass));
 	}
 
 	protected Map<String, Object> getHints(ResolvableType resolvableType) {

spring-web/src/main/java/org/springframework/http/converter/HttpMessageConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -25,11 +25,12 @@ import org.springframework.http.MediaType;
 import org.springframework.lang.Nullable;
 
 /**
- * Strategy interface that specifies a converter that can convert from and to HTTP requests and responses.
+ * Strategy interface for converting from and to HTTP requests and responses.
  *
  * @author Arjen Poutsma
  * @author Juergen Hoeller
  * @since 3.0
+ * @param <T> the converted object type
  */
 public interface HttpMessageConverter<T> {
 
@@ -53,7 +54,7 @@ public interface HttpMessageConverter<T> {
 
 	/**
 	 * Return the list of {@link MediaType} objects supported by this converter.
-	 * @return the list of supported media types
+	 * @return the list of supported media types, potentially an immutable copy
 	 */
 	List<MediaType> getSupportedMediaTypes();
 

spring-web/src/main/java/org/springframework/http/converter/json/AbstractJackson2HttpMessageConverter.java

@@ -38,7 +38,6 @@ import com.fasterxml.jackson.databind.SerializationConfig;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.databind.exc.InvalidDefinitionException;
 import com.fasterxml.jackson.databind.ser.FilterProvider;
-import com.fasterxml.jackson.databind.type.TypeFactory;
 
 import org.springframework.core.GenericTypeResolver;
 import org.springframework.http.HttpInputMessage;
@@ -319,8 +318,7 @@ public abstract class AbstractJackson2HttpMessageConverter extends AbstractGener
 	 * @return the Jackson JavaType
 	 */
 	protected JavaType getJavaType(Type type, @Nullable Class<?> contextClass) {
-		TypeFactory typeFactory = this.objectMapper.getTypeFactory();
-		return typeFactory.constructType(GenericTypeResolver.resolveType(type, contextClass));
+		return this.objectMapper.constructType(GenericTypeResolver.resolveType(type, contextClass));
 	}
 
 	/**

spring-web/src/main/java/org/springframework/web/util/UriComponentsBuilder.java

@@ -233,7 +233,7 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 			}
 			builder.scheme(scheme);
 			if (opaque) {
-				String ssp = uri.substring(scheme.length()).substring(1);
+				String ssp = uri.substring(scheme.length() + 1);
 				if (StringUtils.hasLength(fragment)) {
 					ssp = ssp.substring(0, ssp.length() - (fragment.length() + 1));
 				}
@@ -394,9 +394,8 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 	 * characters that should have been encoded.
 	 */
 	public UriComponents build(boolean encoded) {
-		return buildInternal(encoded ?
-				EncodingHint.FULLY_ENCODED :
-				this.encodeTemplate ? EncodingHint.ENCODE_TEMPLATE : EncodingHint.NONE);
+		return buildInternal(encoded ? EncodingHint.FULLY_ENCODED :
+				(this.encodeTemplate ? EncodingHint.ENCODE_TEMPLATE : EncodingHint.NONE));
 	}
 
 	private UriComponents buildInternal(EncodingHint hint) {
@@ -408,8 +407,7 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 			HierarchicalUriComponents uric = new HierarchicalUriComponents(this.scheme, this.fragment,
 					this.userInfo, this.host, this.port, this.pathBuilder.build(), this.queryParams,
 					hint == EncodingHint.FULLY_ENCODED);
-
-			result = hint == EncodingHint.ENCODE_TEMPLATE ? uric.encodeTemplate(this.charset) : uric;
+			result = (hint == EncodingHint.ENCODE_TEMPLATE ? uric.encodeTemplate(this.charset) : uric);
 		}
 		if (!this.uriVariables.isEmpty()) {
 			result = result.expand(name -> this.uriVariables.getOrDefault(name, UriTemplateVariables.SKIP_VALUE));
@@ -466,9 +464,8 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 	 * @see UriComponents#toUriString()
 	 */
 	public String toUriString() {
-		return this.uriVariables.isEmpty() ?
-				build().encode().toUriString() :
-				buildInternal(EncodingHint.ENCODE_TEMPLATE).toUriString();
+		return (this.uriVariables.isEmpty() ? build().encode().toUriString() :
+				buildInternal(EncodingHint.ENCODE_TEMPLATE).toUriString());
 	}
 
 
@@ -841,12 +838,10 @@ public class UriComponentsBuilder implements UriBuilder, Cloneable {
 					scheme(StringUtils.tokenizeToStringArray(protocolHeader, ",")[0]);
 					port(null);
 				}
-
 				String hostHeader = headers.getFirst("X-Forwarded-Host");
 				if (StringUtils.hasText(hostHeader)) {
 					adaptForwardedHost(StringUtils.tokenizeToStringArray(hostHeader, ",")[0]);
 				}
-
 				String portHeader = headers.getFirst("X-Forwarded-Port");
 				if (StringUtils.hasText(portHeader)) {
 					port(Integer.parseInt(StringUtils.tokenizeToStringArray(portHeader, ",")[0]));