#1313 - Override Problem.withStatus in ExtendedProblem to preserve payload.

When you use the withStatus() method on an ExtendedProblem, it hands back a Problem, which drops the payload. This commit adds the same sort of override already provided for the other attributes in ExtendedProblem.

src/main/java/org/springframework/hateoas/mediatype/problem/Problem.java

@@ -195,6 +195,15 @@ public class Problem {
 			return new ExtendedProblem<>(getType(), title, getStatus(), getDetail(), getInstance(), extendedProperties);
 		}
 
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.hateoas.mediatype.problem.Problem#withStatus(org.springframework.http.HttpStatus)
+		 */
+		@Override
+		public ExtendedProblem<T> withStatus(@Nullable HttpStatus status) {
+			return new ExtendedProblem<>(getType(), getTitle(), status, getDetail(), getInstance(), extendedProperties);
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see org.springframework.hateoas.mediatype.problem.Problem#withDetail(java.lang.String)

src/test/java/org/springframework/hateoas/mediatype/problem/JacksonSerializationTest.java

@@ -219,6 +219,7 @@ class JacksonSerializationTest {
 		ExtendedProblem<AccountProblemDetails> problem = Problem.create(details)
 				.withType(URI.create("https://example.com/probs/out-of-credit")) //
 				.withTitle("You do not have enough credit.") //
+				.withStatus(HttpStatus.BAD_REQUEST) //
 				.withDetail("Your current balance is 30, but that costs 50.") //
 				.withInstance(URI.create("/account/12345/msgs/abc"));
 

src/test/resources/org/springframework/hateoas/mediatype/problem/extension.json

@@ -4,5 +4,6 @@
   "detail" : "Your current balance is 30, but that costs 50.",
   "instance" : "/account/12345/msgs/abc",
   "balance" : 30,
-  "accounts" : [ "/account/12345", "/account/67890" ]
+  "accounts" : [ "/account/12345", "/account/67890" ],
+  "status" : 400
 }