On Wed, 7 Oct 2020 07:13:53 GMT, Aleksey Shipilev <sh...@openjdk.org> wrote:
> The iron-clad fix would be to synchronously insert something like > `DiscardMouseEvent` on the beginning of event queue, > and `AcceptMouseEvent` at the end of it, and let the `EventQueue` processor > thread manage the flag -- so that > `EventQueue` serializes everything, like it is designed to? Unfortunately, it is not possible to store this flag in EventQueue nor EventDispatchThread and maintain it using upcoming events, the JVM may run a few applications in parallel so it may have more than one EventQueue/EventDispatchThread and this code was written to discard all events in all apps while one of them start DnD. The code could be changed though when the support of multiple EventQueue/EventDispatchThread will be finally dropped. ------------- PR: https://git.openjdk.java.net/jdk/pull/491
