我具有以下代码，旨在将JavaFX应用程序中的一系列文件放入系统剪贴板中：

pane.setOnDragDetected(event -> {

  List<File> files = ... 

  Dragboard dragBoard = ((Node)event.getsource()).startDragAndDrop(TransferMode.COPY);

  ClipboardContent clipboardContent = new ClipboardContent();
  clipboardContent.putFiles(files);
  dragBoard.setContent(clipboardContent);
  event.consume();

});

该代码在Java 11（Oracle JDK 11.0.1）上运行良好。

在Java 13（OpenJDK 13.0.1）上，但是如果我将多个文件放入剪贴板（其中一个也可以很好地工作）并显示以下错误消息，则此操作将失败：

2019-11-09 23:53:28.956 java[50078:1146885] *** Terminating app due to uncaught exception 'NSGenericException',reason: 'There are 3 items on the pasteboard,but 1 drag images. There must be 1 draggingItem per pasteboardItem.'
*** First throw call stack:
(
    0   CoreFoundation                      0x00007fff2db3af53 __exceptionPreprocess + 250
    1   libobjc.A.dylib                     0x00007fff63c00835 objc_exception_throw + 48
    2   CoreFoundation                      0x00007fff2db3ada9 +[NSException raise:format:] + 189
    3   AppKit                              0x00007fff2afc93bb -[NSDraggingSession(NSInternal) _initWithPasteboard:image:offset:source:] + 247
    4   AppKit                              0x00007fff2afc8dee -[NSCoreDragManager dragImage:fromWindow:at:offset:event:pasteboard:source:slideBack:] + 1889
    5   AppKit                              0x00007fff2afc867d -[NSWindow(NSDrag) dragImage:at:offset:event:pasteboard:source:slideBack:] + 134
    6   libglass.dylib                      0x000000012f55a618 -[GlassViewDelegate startDrag:] + 1080
    7   libglass.dylib                      0x000000012f5650c7 Java_com_sun_glass_ui_mac_MacPasteboard__1putItemsFromArray + 2439
    8   ???                                 0x00000001140bec90 0x0 + 4631293072
    9   ???                                 0x00000001140b8a90 0x0 + 4631267984
    10  ???                                 0x00000001140b8a90 0x0 + 4631267984
    11  ???                                 0x00000001140b8a90 0x0 + 4631267984
)
libc++abi.dylib: terminating with uncaught exception of type NSException

这是我可以找到解决方法的问题，还是在Java / JavaFX / macOS集成中遇到了实际问题？

• OS：macOS Catalina（10.15.1）
• JDK：openjdk-13.0.1