#831 - Polishing.

src/main/java/org/springframework/hateoas/server/core/UriTemplateFactory.java

@@ -38,7 +38,7 @@ public class UriTemplateFactory {
 	 * @param mapping must not be {@literal null} or empty.
 	 * @return
 	 */
-	public static UriTemplate templateFor(String mapping) {
+	public static UriTemplate templateFor(@Nullable String mapping) {
 
 		Assert.hasText(mapping, "Mapping must not be null or empty!");
 

src/main/java/org/springframework/hateoas/server/core/WebHandler.java

@@ -320,7 +320,7 @@ public class WebHandler {
 		 * @param attribute must not be {@literal null}.
 		 * @return
 		 */
-		protected BoundMethodParameter createParameter(MethodParameter parameter, Object value,
+		protected BoundMethodParameter createParameter(MethodParameter parameter, @Nullable Object value,
 				AnnotationAttribute attribute) {
 			return new BoundMethodParameter(parameter, value, attribute);
 		}
@@ -370,7 +370,7 @@ public class WebHandler {
 			 * @param value can be {@literal null}.
 			 * @param attribute can be {@literal null}.
 			 */
-			public BoundMethodParameter(MethodParameter parameter, Object value, AnnotationAttribute attribute) {
+			public BoundMethodParameter(MethodParameter parameter, @Nullable Object value, AnnotationAttribute attribute) {
 
 				Assert.notNull(parameter, "MethodParameter must not be null!");
 
@@ -404,6 +404,7 @@ public class WebHandler {
 			 *
 			 * @return
 			 */
+			@Nullable
 			public Object getValue() {
 				return value;
 			}

src/main/java/org/springframework/hateoas/server/mvc/RepresentationModelProcessorInvoker.java

@@ -293,8 +293,8 @@ public class RepresentationModelProcessorInvoker {
 		 * Returns whether the given {@link EntityModel} matches the given target {@link ResolvableType}. We inspect the
 		 * {@link EntityModel}'s value to determine the match.
 		 *
-		 * @param resource
-		 * @param target must not be {@literal null}.
+		 * @param resource can be {@literal null}.
+		 * @param target can be {@literal null}.
 		 * @return whether the given {@link EntityModel} can be assigned to the given target {@link ResolvableType}
 		 */
 		private static boolean isValueTypeMatch(@Nullable EntityModel<?> resource, @Nullable ResolvableType target) {