[Feature] 让Java下载页面可以同时下载多个Java (#5394)

Co-authored-by: Glavo <zjx001202@gmail.com>

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/JavaDownloadDialog.java

@@ -18,13 +18,13 @@
 package org.jackhuang.hmcl.ui.main;
 
 import com.jfoenix.controls.*;
+import javafx.beans.InvalidationListener;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.scene.control.Label;
-import javafx.scene.control.ToggleGroup;
 import javafx.scene.layout.ColumnConstraints;
 import javafx.scene.layout.GridPane;
 import javafx.scene.layout.StackPane;
@@ -48,6 +48,8 @@ import org.jackhuang.hmcl.ui.construct.DialogCloseEvent;
 import org.jackhuang.hmcl.ui.construct.DialogPane;
 import org.jackhuang.hmcl.ui.construct.JFXHyperlink;
 import org.jackhuang.hmcl.ui.wizard.SinglePageWizardProvider;
+import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.Result;
 import org.jackhuang.hmcl.util.StringUtils;
 import org.jackhuang.hmcl.util.TaskCancellationAction;
 import org.jackhuang.hmcl.util.gson.JsonUtils;
@@ -108,23 +110,39 @@ public final class JavaDownloadDialog extends StackPane {
     }
 
     private final class DownloadMojangJava extends DialogPane {
-        private final ToggleGroup toggleGroup = new ToggleGroup();
+        private final List<JFXCheckBox> checkboxes = new ArrayList<>();
 
         DownloadMojangJava() {
             setTitle(i18n("java.download.title"));
-            validProperty().bind(toggleGroup.selectedToggleProperty().isNotNull());
 
             VBox vbox = new VBox(16);
             Label prompt = new Label(i18n("java.download.prompt"));
             vbox.getChildren().add(prompt);
 
+            setValid(false);
+            InvalidationListener updateValidStatus = e -> {
+                for (JFXCheckBox box : checkboxes) {
+                    if (!box.isDisabled() && box.isSelected()) {
+                        setValid(true);
+                        return;
+                    }
+                }
+                setValid(false);
+            };
+
             for (GameJavaVersion version : supportedGameJavaVersions) {
-                JFXRadioButton button = new JFXRadioButton("Java " + version.majorVersion());
+                JFXCheckBox button = new JFXCheckBox("Java " + version.majorVersion());
                 button.setUserData(version);
-                vbox.getChildren().add(button);
+
-                toggleGroup.getToggles().add(button);
+                if (JavaManager.REPOSITORY.isInstalled(platform, version)) {
-                if (JavaManager.REPOSITORY.isInstalled(platform, version))
                     button.setDisable(true);
+                    button.setSelected(true);
+                } else {
+                    button.selectedProperty().addListener(updateValidStatus);
+                }
+
+                vbox.getChildren().add(button);
+                checkboxes.add(button);
             }
 
             setBody(vbox);
@@ -137,38 +155,52 @@ public final class JavaDownloadDialog extends StackPane {
                 setActions(warningLabel, acceptPane, cancelButton);
         }
 
-        private Task<Void> downloadTask(GameJavaVersion javaVersion) {
-            return JavaManager.getDownloadJavaTask(downloadProvider, platform, javaVersion).whenComplete(Schedulers.javafx(), (result, exception) -> {
-                if (exception != null) {
-                    Throwable resolvedException = resolveException(exception);
-                    LOG.warning("Failed to download java", exception);
-                    if (!(resolvedException instanceof CancellationException)) {
-                        Controllers.dialog(DownloadProviders.localizeErrorMessage(resolvedException), i18n("install.failed"));
-                    }
-                }
-            });
-        }
-
         @Override
         protected void onAccept() {
             fireEvent(new DialogCloseEvent());
 
-            GameJavaVersion javaVersion = (GameJavaVersion) toggleGroup.getSelectedToggle().getUserData();
+            List<GameJavaVersion> selectedVersions = new ArrayList<>();
-            if (javaVersion == null)
+            for (JFXCheckBox box : checkboxes) {
+                if (!box.isDisabled() && box.isSelected()) {
+                    selectedVersions.add((GameJavaVersion) box.getUserData());
+                }
+            }
+
+            if (selectedVersions.isEmpty())
                 return;
 
-            if (JavaManager.REPOSITORY.isInstalled(platform, javaVersion))
+            Task<Void> task = Task.allOf(selectedVersions.stream().map(javaVersion -> JavaManager.getDownloadJavaTask(downloadProvider, platform, javaVersion).wrapResult()).toList())
-                Controllers.confirm(i18n("download.java.override"), null, () -> {
+                    .whenComplete(Schedulers.javafx(), (results, exception) -> {
-                    Controllers.taskDialog(Task.supplyAsync(() -> JavaManager.REPOSITORY.getJavaExecutable(platform, javaVersion))
+                        Throwable exceptionToDisplay;
-                            .thenComposeAsync(Schedulers.javafx(), realPath -> {
+                        if (exception == null) {
-                                if (realPath != null) {
+                            List<Throwable> exceptions = results.stream()
-                                    JavaManager.removeJava(realPath);
+                                    .filter(Result::isFailure)
+                                    .map(Result::getException)
+                                    .map(Lang::resolveException)
+                                    .filter(it -> !(it instanceof CancellationException))
+                                    .toList();
+                            if (!exceptions.isEmpty()) {
+                                if (exceptions.size() == 1) {
+                                    exceptionToDisplay = exceptions.get(0);
+                                } else {
+                                    exceptionToDisplay = new IOException("Failed to download Java");
+                                    for (Throwable e : exceptions)
+                                        exceptionToDisplay.addSuppressed(e);
                                 }
-                                return downloadTask(javaVersion);
+                            } else {
-                            }), i18n("download.java"), TaskCancellationAction.NORMAL);
+                                exceptionToDisplay = null;
-                }, null);
+                            }
-            else
+                        } else {
-                Controllers.taskDialog(downloadTask(javaVersion), i18n("download.java.process"), TaskCancellationAction.NORMAL);
+                            exceptionToDisplay = exception;
+                        }
+
+                        if (exceptionToDisplay != null) {
+                            LOG.warning("Failed to download java", exceptionToDisplay);
+                            Controllers.dialog(DownloadProviders.localizeErrorMessage(exceptionToDisplay), i18n("install.failed"));
+                        }
+                    });
+
+            Controllers.taskDialog(task, i18n("download.java.process"), TaskCancellationAction.NORMAL);
         }
     }
 

HMCL/src/main/resources/assets/lang/I18N.properties

@@ -367,7 +367,6 @@ download.provider.balanced.desc=Balanced, but may not be the latest
 download.provider.mirror=From Mirror
 download.provider.mirror.desc=Fast, but may not be the latest
 download.java=Downloading Java
-download.java.override=This Java version already exists. Do you want to uninstall and reinstall it?
 download.java.process=Java Download Process
 download.javafx=Downloading dependencies for the launcher...
 download.javafx.notes=We are currently downloading dependencies for HMCL from the Internet.\n\

HMCL/src/main/resources/assets/lang/I18N_ar.properties

@@ -340,7 +340,6 @@ download.provider.official=من المصادر الرسمية
 download.provider.balanced=من الأسرع المتاح
 download.provider.mirror=من المرآة
 download.java=تنزيل Java
-download.java.override=هذا الإصدار من Java موجود بالفعل. هل تريد إلغاء التثبيت وإعادة التثبيت؟
 download.java.process=عملية تنزيل Java
 download.javafx=تنزيل التبعيات للمشغل...
 download.javafx.notes=نحن نقوم حالياً بتنزيل تبعيات HMCL من الإنترنت.\n\

HMCL/src/main/resources/assets/lang/I18N_es.properties

@@ -345,7 +345,6 @@ download.provider.official=De fuentes oficiales
 download.provider.balanced=De la fuente más rápida disponible
 download.provider.mirror=Desde espejo
 download.java=Descargando Java
-download.java.override=Esta versión de Java ya existe. ¿Desea desinstalarla y volver a instalarla?
 download.java.process=Proceso de descarga Java
 download.javafx=Descargando dependencias para el launcher...
 download.javafx.notes=Estamos descargando dependencias para HMCL desde Internet.\n\

HMCL/src/main/resources/assets/lang/I18N_lzh.properties

@@ -344,7 +344,6 @@ download.provider.balanced.desc=均，容有舊
 download.provider.mirror=先別源
 download.provider.mirror.desc=至快，容有舊
 download.java=引爪哇
-download.java.override=爪哇是版既現，除而復裝諸？
 download.java.process=引爪哇
 download.javafx=甫引行需諸案……
 download.javafx.notes=方引 HMCL 所需諸案。\n擊「迭引源」以閲詳，并迭之。擊「罷」以止而退。\n誡：引之允滯，宜迭其源。

HMCL/src/main/resources/assets/lang/I18N_ru.properties

@@ -342,7 +342,6 @@ download.provider.official=Из официальных источников
 download.provider.balanced=Из самых быстрых доступных
 download.provider.mirror=Из зеркала
 download.java=Скачивание Java
-download.java.override=Эта версия Java уже существует. Вы хотите удалить и установить ее заново?
 download.java.process=Процесс скачивания Java
 download.javafx=Скачивание зависимостей лаунчера...
 download.javafx.notes=Скачивание зависимостей для лаунчер из Интернета.\n\

HMCL/src/main/resources/assets/lang/I18N_uk.properties

@@ -341,7 +341,6 @@ download.provider.official=З офіційних джерел
 download.provider.balanced=З найшвидшого доступного
 download.provider.mirror=З дзеркала
 download.java=Завантаження Java
-download.java.override=Ця версія Java вже існує. Бажаєте видалити та перевстановити її?
 download.java.process=Процес завантаження Java
 download.javafx=Завантаження залежностей для лаунчера...
 download.javafx.notes=Ми зараз завантажуємо залежності для HMCL з Інтернету. \n\

HMCL/src/main/resources/assets/lang/I18N_zh.properties

@@ -363,7 +363,6 @@ download.provider.balanced.desc=平衡，但可能不是最新
 download.provider.mirror=盡量使用鏡像源
 download.provider.mirror.desc=載入快，但可能不是最新
 download.java=下載 Java
-download.java.override=此 Java 版本已經存在，是否移除並重新安裝？
 download.java.process=下載 Java
 download.javafx=正在下載必要的執行時元件
 download.javafx.notes=正在透過網路下載 HMCL 必要的執行時元件。\n點擊「切換下載源」按鈕查看詳情以及選取下載源。點擊「取消」按鈕停止並退出。\n注意：如果下載速度過慢，請嘗試切換下載源。

HMCL/src/main/resources/assets/lang/I18N_zh_CN.properties

@@ -365,7 +365,6 @@ download.provider.balanced.desc=平衡，但可能不是最新
 download.provider.mirror=尽量使用镜像源
 download.provider.mirror.desc=加载快，但可能不是最新
 download.java=下载 Java
-download.java.override=此 Java 版本已经存在，是否卸载并重新安装？
 download.java.process=下载 Java
 download.javafx=正在下载必要的运行时组件……
 download.javafx.notes=正在通过网络下载 HMCL 必要的运行时组件。\n点击“切换下载源”按钮查看详情以及选择下载源。点击“取消”按钮停止并退出。\n注意：若下载速度过慢，请尝试切换下载源。

HMCLCore/src/main/java/org/jackhuang/hmcl/task/Task.java

@@ -22,6 +22,7 @@ import javafx.beans.property.DoubleProperty;
 import javafx.beans.property.ReadOnlyDoubleProperty;
 import javafx.beans.property.SimpleDoubleProperty;
 import org.jackhuang.hmcl.event.EventManager;
+import org.jackhuang.hmcl.util.Result;
 import org.jackhuang.hmcl.util.function.ExceptionalConsumer;
 import org.jackhuang.hmcl.util.function.ExceptionalFunction;
 import org.jackhuang.hmcl.util.function.ExceptionalRunnable;
@@ -784,6 +785,37 @@ public abstract class Task<T> {
         return whenComplete(executor, (exception -> action.execute(getResult(), exception)));
     }
 
+    public Task<Result<T>> wrapResult() {
+        return new Task<Result<T>>() {
+            {
+                setSignificance(TaskSignificance.MODERATE);
+            }
+
+            @Override
+            public void execute() throws Exception {
+                if (isDependentsSucceeded() != (Task.this.getException() == null))
+                    throw new AssertionError("When whenComplete succeeded, Task.exception must be null.", Task.this.getException());
+
+                if (isDependentsSucceeded()) {
+                    setResult(Result.success(Task.this.getResult()));
+                } else {
+                    setSignificance(TaskSignificance.MINOR);
+                    setResult(Result.failure(Task.this.getException()));
+                }
+            }
+
+            @Override
+            public Collection<Task<?>> getDependents() {
+                return Collections.singleton(Task.this);
+            }
+
+            @Override
+            public boolean isRelyingOnDependents() {
+                return false;
+            }
+        }.setExecutor(executor).setName(getCaller()).setSignificance(TaskSignificance.MODERATE);
+    }
+
     /**
      * Returns a new Task with the same exception as this task, that executes
      * the given actions when this task completes.

HMCLCore/src/main/java/org/jackhuang/hmcl/util/Result.java

@@ -0,0 +1,78 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2026 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;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Objects;
+
+/// @author Glavo
+public final class Result<T> {
+    public static <T> Result<T> success(T value) {
+        return new Result<>(value, null);
+    }
+
+    public static <T> Result<T> failure(@NotNull Throwable exception) {
+        Objects.requireNonNull(exception);
+        return new Result<>(null, exception);
+    }
+
+    private final T value;
+    private final Throwable exception;
+
+    private Result(T value, Throwable exception) {
+        this.value = value;
+        this.exception = exception;
+    }
+
+    public boolean isSuccess() {
+        return exception == null;
+    }
+
+    public boolean isFailure() {
+        return exception != null;
+    }
+
+    public T get() throws Throwable {
+        if (exception != null)
+            throw exception;
+        else
+            return value;
+    }
+
+    public @Nullable T getOrNull() {
+        return exception == null ? value : null;
+    }
+
+    public @Nullable Throwable getException() {
+        return exception;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(value, exception);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return this == obj || obj instanceof Result<?> other
+                && Objects.equals(value, other.value)
+                && Objects.equals(exception, other.exception);
+    }
+}