> Currently on macOS when mouseMove is given an offscreen coordinate to move 
> the mouse to, mouseMove will physically clamp to the edge of the screen, but 
> if you try to grab the mouse location immediately after by using 
> MouseInfo.getPointerInfo().getLocation() you will get the value of the 
> offscreen point.
> 
> Windows and linux do this clamping and coordinate handling for us, but new 
> distributions may not necessarily handle clamping the same way, so Robot 
> should be checking for clamping rather than delegating it to native.
> 
> This fix updates shared code to cache the screen bounds and adds a check to 
> not exceed the bounds in mouseMove. The caching is done in the Robot 
> constructor, so if the screen bounds changes the constructor must be called 
> again to update to the new bounds.

Alisen Chung has updated the pull request incrementally with two additional 
commits since the last revision:

 - helper function
 - grab screen data on mouseMove

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22781/files
  - new: https://git.openjdk.org/jdk/pull/22781/files/e929a07a..5cd1e6a7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22781&range=10
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22781&range=09-10

  Stats: 29 lines in 1 file changed: 13 ins; 9 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/22781.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22781/head:pull/22781

PR: https://git.openjdk.org/jdk/pull/22781

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