> When a window is visible the maximized, iconified, and fullscreen properties 
> are two-way streets; changes made in Java are sent on to the platform window 
> and changes in the platform window are sent back into Java.
> 
> When a window is hidden these properties (and others, like location and 
> sizing information) are not sent on to the platform window until the window 
> is made visible. In other words, the properties don't reflect the actual 
> state of the window but the intended state after it's shown.
> 
> There's a period when the window is transitioning from hidden to shown where 
> the core Stage code is using the stored properties to configure the platform 
> window and the platform window is simultaneously calling back in to update 
> the properties. This was causing the intended state to be wiped out before it 
> could be sent on to the platform window.
> 
> The problem is specific to Mac because on that platform any change to the 
> size or location of a window can cause it to enter or leave the maximized 
> (zoomed) state. So just setting the location can cause the maximized flag to 
> be altered.
> 
> The proposed solution is to copy the intended state bits to Stage local 
> variables to be used later in the configuration.

Martin Fox has updated the pull request incrementally with one additional 
commit since the last revision:

  Revert core changes. Fix Mac glass code so it reports maximized state 
correctly.

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/1258/files
  - new: https://git.openjdk.org/jfx/pull/1258/files/cc72d4ae..94fe8dc6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1258&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1258&range=00-01

  Stats: 31 lines in 3 files changed: 16 ins; 12 del; 3 mod
  Patch: https://git.openjdk.org/jfx/pull/1258.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1258/head:pull/1258

PR: https://git.openjdk.org/jfx/pull/1258

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