Fix raw types

Author: tomxor

src/main/java/com/contentful/java/cda/ResourceUtils.java

@@ -99,7 +99,7 @@ static void mergeIncludes(CDAArray array) {
   static void resolveArrayOfLinks(CDAEntry entry, CDAField field, ArrayResource array) {
     CDAType linkType =
         CDAType.valueOf(((String) field.items().get("linkType")).toUpperCase(LOCALE));
-    Map<String, Object> value = (Map) entry.fields.get(field.id());
+    Map<String, Object> value = (Map<String, Object>) entry.fields.get(field.id());
     if (value == null) {
       return;
     }
@@ -126,7 +126,7 @@ static void resolveArrayOfLinks(CDAEntry entry, CDAField field, ArrayResource ar
   @SuppressWarnings("unchecked")
   static void resolveSingleLink(CDAEntry entry, CDAField field, ArrayResource array) {
     CDAType linkType = CDAType.valueOf(field.linkType().toUpperCase(LOCALE));
-    Map<String, Object> value = (Map) entry.fields.get(field.id());
+    Map<String, Object> value = (Map<String, Object>) entry.fields.get(field.id());
     if (value == null) {
       return;
     }
@@ -149,7 +149,7 @@ static String getLinkId(Object link) {
       // already resolved
       return ((CDAResource) link).id();
     }
-    return extractNested((Map) link, "sys", "id");
+    return extractNested((Map<?, ?>) link, "sys", "id");
   }
 
   static CDAResource findLinkedResource(ArrayResource array, CDAType linkType,
@@ -264,7 +264,7 @@ private static void setRawFields(LocalizedResource resource) {
     Map<String, Object> rawFields = new HashMap<String, Object>();
     for (String key : resource.fields.keySet()) {
       Map<String, Object> map = new HashMap<String, Object>();
-      map.putAll((Map) resource.fields.get(key));
+      map.putAll((Map<String, ?>) resource.fields.get(key));
       rawFields.put(key, map);
     }
     resource.rawFields = rawFields;

src/main/java/com/contentful/java/cda/Util.java

@@ -83,7 +83,7 @@ static <T> T extractNested(Map<?, ?> source, String... keys) {
       if (i == keys.length - 1) {
         return (T) curr.get(keys[i]);
       }
-      curr = (Map) curr.get(keys[i]);
+      curr = (Map<?, ?>) curr.get(keys[i]);
       if (curr == null) {
         break;
       }