[Bug] 3.11-Beta及以上:启动器在进入附加内容下载界面时崩溃

[moubread233]

问题描述 | Bug Description

1. 进入启动器下载页面,选择除游戏外任意一个类型
2. 点击资源列表中任意一个内容
3. 触发空指针,在最新的Beta和Nightly Build版本中稳定复现

启动器崩溃报告 / 启动器日志文件 | Launcher Crash Report / Launcher Log File

---- Hello Minecraft! Crash Report ----
Version: 3.11.0.322
Time: 2026-01-27 23:24:05
Thread: Thread[JavaFX Application Thread,5,main]

Content:
java.lang.NullPointerException: Cannot invoke "javafx.scene.control.MultipleSelectionModel.getSelectedIndex()" because the return value of "javafx.scene.control.ListView.getSelectionModel()" is null
at javafx.controls/com.sun.javafx.scene.control.behavior.ListViewBehavior.mousePressed(ListViewBehavior.java:369)
at javafx.controls/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
at javafx.base/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)
at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at javafx.base/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at org.jackhuang.hmcl.ui.FXUtils.lambda$ignoreEvent$9(FXUtils.java:365)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at javafx.base/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at javafx.base/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at javafx.base/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.base/javafx.event.Event.fireEvent(Event.java:198)
at javafx.graphics/javafx.scene.Scene$MouseHandler.process(Scene.java:3897)
at javafx.graphics/javafx.scene.Scene.processMouseEvent(Scene.java:1878)
at javafx.graphics/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2623)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
at javafx.graphics/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
at javafx.graphics/com.sun.glass.ui.View.handleMouseEvent(View.java:557)
at javafx.graphics/com.sun.glass.ui.View.notifyMouse(View.java:943)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:290)
at java.base/java.lang.Thread.run(Thread.java:840)

-- System Details --
Operating System: Linux 6.12.63+deb13-amd64
System Architecture: x86-64
Java Architecture: x86-64
Java Version: 17.0.17, OpenLogic-OpenJDK
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode, sharing), OpenLogic-OpenJDK
JVM Max Memory: 4127195136
JVM Total Memory: 140509184
JVM Free Memory: 62667992

[moubread233]

截图中停留在游戏一栏的原因是即使报错,启动器仍然可以进行除了进入下载资源界面外的任何操作(其实有几率可以进入,且其它功能工作正常,但仍然会弹出报错弹窗),所以我在触发这个Bug后按从世界到游戏的顺序进行测试,最后停留在游戏的下载界面

[moubread233]

作为补充,如果发生错误,点击的反馈动画不会消失,而且即使我没有点击,其它的下载项也有可能出现下载动画的最后一帧

[3gf8jv4dv]

我在 Windows 平台测试了下，你的 OpenLogic OpenJDK 17 附带的 JavaFX 会出现这个问题。
BellSoft 的附带 JavaFX 的 LibericaJDK 17 也会出现同问题。

但 OpenLogic OpenJDK >=21、BellSoft LibericaJDK >=21，以及使用其他不包含 JavaFX 的 OpenJDK 时，不会出现这个问题。

如果可以，你也可以切换下其他 OpenJDK，看看是否会出现问题。

CC @Glavo

附：OpenLogic OpenJDK 的 JavaFX 版本号：

• OpenLogic OpenJDK 17: 17-internal+0-2025-11-03-053712
• OpenLogic OpenJDK 21: 22-internal+0-2025-11-03-134100

[3gf8jv4dv]

我用一个不带 JavaFX 的 BellSoft Liberica JDK 17 打开 HMCL，HMCL 自动下载的 JavaFX 是 21.0.8+2。
也许和特定的 JavaFX 版本有关？