Adding user resource for v3

Adding GrantType value for jwt-bearer grant type

Author: Jochen Damzog

cloudfoundry-client/src/main/java/org/cloudfoundry/uaa/tokens/GrantType.java

@@ -47,7 +47,12 @@ public enum GrantType {
     /**
      * The refresh token grant type
      */
-    REFRESH_TOKEN("refresh_token");
+    REFRESH_TOKEN("refresh_token"),
+
+    /**
+     * The jwt-bearer token grant type
+     */
+    JWT_BEARER("urn:ietf:params:oauth:grant-type:jwt-bearer");
 
     private final String value;
 
@@ -68,6 +73,8 @@ public static GrantType from(String s) {
                 return PASSWORD;
             case "refresh_token":
                 return REFRESH_TOKEN;
+            case "urn:ietf:params:oauth:grant-type:jwt-bearer":
+                return JWT_BEARER;
             default:
                 throw new IllegalArgumentException(String.format("Unknown grant type: %s", s));
         }

integration-test/src/test/java/org/cloudfoundry/client/v3/UsersTest.java

@@ -35,7 +35,7 @@
 public final class UsersTest extends AbstractIntegrationTest {
 
     @Autowired
-    private final CloudFoundryClient cloudFoundryClient;
+    private CloudFoundryClient cloudFoundryClient;
 
     private static Mono<CreateUserResponse> createUser(
             CloudFoundryClient cloudFoundryClient, String userId) {