Fix the validation order

Author: junichi11

src/main/java/com/junichi11/netbeans/modules/github/issues/repository/GitHubRepositoryController.java

@@ -148,6 +148,20 @@ private GitHubRepositoryPanel getPanel() {
         "GithubRepositoryController.label.repositoryName=Repository Name",})
     private void validate() {
         GitHubRepositoryPanel repositoryPanel = getPanel();
+        if (!repositoryPanel.isPropertyFile()) {
+            // oauth token
+            if (StringUtils.isEmpty(repositoryPanel.getOAuthToken())) {
+                errorMessage = Bundle.GithubRepositoryController_message_empty_error(Bundle.GithubRepositoryController_label_oauthToken());
+                return;
+            }
+
+            // user name
+            if (StringUtils.isEmpty(repositoryPanel.getUserName())) {
+                errorMessage = Bundle.GithubRepositoryController_message_empty_error(Bundle.GithubRepositoryController_label_userName());
+                return;
+            }
+        }
+
         // display name
         String displayName = repositoryPanel.getDisplayName();
         if (StringUtils.isEmpty(displayName)) {
@@ -169,20 +183,6 @@ private void validate() {
             }
         }
 
-        if (!repositoryPanel.isPropertyFile()) {
-            // user name
-            if (StringUtils.isEmpty(repositoryPanel.getUserName())) {
-                errorMessage = Bundle.GithubRepositoryController_message_empty_error(Bundle.GithubRepositoryController_label_userName());
-                return;
-            }
-
-            // oauth token
-            if (StringUtils.isEmpty(repositoryPanel.getOAuthToken())) {
-                errorMessage = Bundle.GithubRepositoryController_message_empty_error(Bundle.GithubRepositoryController_label_oauthToken());
-                return;
-            }
-        }
-
         // repository
         if (StringUtils.isEmpty(repositoryPanel.getRepositoryAuthor())) {
             errorMessage = Bundle.GithubRepositoryController_message_empty_error(Bundle.GithubRepositoryController_label_repositoryAuthor());