Xpra: Ticket #2600: mouse offset with java applications

The menus in netbeans reproduce the problem easily.

See also Java related tickets:

Window offset tickets:

Wed, 19 Feb 2020 13:57:03 GMT - Antoine Martin: status, description changed

This seems to affect the netbeans window only initially when it shows up maximized, the problem goes away once the window is unmaximized.

The html5 client is also affected, but less so: the offset is smaller.

Fri, 08 May 2020 14:44:14 GMT - Antoine Martin: milestone changed

Mon, 28 Dec 2020 15:14:25 GMT - Antoine Martin: milestone changed

Sat, 23 Jan 2021 05:55:42 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2600