Fix concurrent problems in TexturesLoader.Selector

HMCL/src/main/java/org/jackhuang/hmcl/ui/account/AddAccountPane.java

@@ -20,6 +20,7 @@ package org.jackhuang.hmcl.ui.account;
 import com.jfoenix.concurrency.JFXUtilities;
 import com.jfoenix.controls.*;
 
+import javafx.application.Platform;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.ListProperty;
 import javafx.beans.property.ReadOnlyObjectProperty;
@@ -246,7 +247,7 @@ public class AddAccountPane extends StackPane {
         private final CountDownLatch latch = new CountDownLatch(1);
         private GameProfile selectedProfile = null;
 
-        {
+        public Selector() {
             setStyle("-fx-padding: 8px;");
 
             cancel.setText(i18n("button.cancel"));
@@ -265,6 +266,7 @@ public class AddAccountPane extends StackPane {
 
         @Override
         public GameProfile select(YggdrasilService service, List<GameProfile> profiles) throws NoSelectedCharacterException {
+            Platform.runLater(() -> {
                 for (GameProfile profile : profiles) {
                     ImageView portraitView = new ImageView();
                     portraitView.setSmooth(false);
@@ -278,8 +280,8 @@ public class AddAccountPane extends StackPane {
                     });
                     listBox.add(accountItem);
                 }
-
-            JFXUtilities.runInFX(() -> Controllers.dialog(this));
+                Controllers.dialog(this);
+            });
 
             try {
                 latch.await();