diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/javafx/MappedProperty.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/javafx/MappedProperty.java
deleted file mode 100644
index 2111ac33cf..0000000000
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/javafx/MappedProperty.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-package org.jackhuang.hmcl.util.javafx;
-
-import javafx.beans.binding.Bindings;
-import javafx.beans.binding.ObjectBinding;
-import javafx.beans.property.Property;
-import javafx.beans.property.SimpleObjectProperty;
-import javafx.beans.value.ObservableValue;
-
-import java.util.function.Function;
-
-/**
- * @author yushijinhun
- */
-public final class MappedProperty<T, U> extends SimpleObjectProperty<U> {
-
-    private final Property<T> predecessor;
-    private final Function<U, T> reservedMapper;
-
-    private final ObjectBinding<U> binding;
-
-    public MappedProperty(Property<T> predecessor, Function<T, U> mapper, Function<U, T> reservedMapper) {
-        this(null, "", predecessor, mapper, reservedMapper);
-    }
-
-    public MappedProperty(Object bean, String name, Property<T> predecessor, Function<T, U> mapper, Function<U, T> reservedMapper) {
-        super(bean, name);
-        this.predecessor = predecessor;
-        this.reservedMapper = reservedMapper;
-
-        binding = new ObjectBinding<U>() {
-            {
-                bind(predecessor);
-            }
-
-            @Override
-            protected U computeValue() {
-                return mapper.apply(predecessor.getValue());
-            }
-
-            @Override
-            protected void onInvalidating() {
-                MappedProperty.this.fireValueChangedEvent();
-            }
-        };
-    }
-
-    @Override
-    public U get() {
-        return binding.get();
-    }
-
-    @Override
-    public void set(U value) {
-        predecessor.setValue(reservedMapper.apply(value));
-    }
-
-    @Override
-    public void bind(ObservableValue<? extends U> observable) {
-        predecessor.bind(Bindings.createObjectBinding(() -> reservedMapper.apply(observable.getValue()), observable));
-    }
-
-    @Override
-    public void unbind() {
-        predecessor.unbind();
-    }
-
-    @Override
-    public boolean isBound() {
-        return predecessor.isBound();
-    }
-}