#340 - Patch ALPS serialization property order

Side effect of upgrading Jackson appears to be arbitrary change in order of property serialization. This commit forces the order to match the spec and fixes the related test cases.

Author: gregturn

src/main/java/org/springframework/hateoas/alps/Alps.java

@@ -24,6 +24,8 @@
 import org.springframework.hateoas.alps.Doc.DocBuilder;
 import org.springframework.hateoas.alps.Ext.ExtBuilder;
 
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
 /**
  * An ALPS document.
  * 
@@ -34,6 +36,7 @@
  */
 @Value
 @Builder(builderMethodName = "alps")
+@JsonPropertyOrder({"version", "doc", "descriptors"})
 public class Alps {
 
 	private final String version = "1.0";

src/test/resources/org/springframework/hateoas/alps/reference.json

@@ -1,4 +1,5 @@
 {
+  "version" : "1.0",
   "doc" : {
     "href" : "http://example.org/samples/full/doc.html"
   },
@@ -27,6 +28,5 @@
       "href" : "http://alps.io/ext/range",
       "value" : "summary,detail"
     }
-  } ],
-  "version" : "1.0"
+  } ]
 }