8350048: Enforce threading restrictions for show and hide methods in Window, Control, and Skin

[andy-goryachev-oracle]

• enforced fx application thread
• added a headful test TestThreadingRestrictions

Note to the Reviewers

To avoid merge conflicts, the preferred order of integrations:

#1697
#1713
#1717

---

Progress

• Change requires a CSR request matching fixVersion jfx25 to be approved (needs to be created)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (2 reviews required, with at least 2 Reviewers)

Issue

• JDK-8350048: Enforce threading restrictions for show and hide methods in Window, Control, and Skin (Bug - P3)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jfx.git pull/1717/head:pull/1717
$ git checkout pull/1717

Update a local copy of the PR:
$ git checkout pull/1717
$ git pull https://git.openjdk.org/jfx.git pull/1717/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1717

View PR using the GUI difftool:
$ git pr show -t 1717

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jfx/pull/1717.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back angorya! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[kevinrushforth]

/reviewers 2 reviewers
/csr

[openjdk]

@kevinrushforth
The total number of required reviews for this PR (including the jcheck configuration and the last /reviewers command) is now set to 2 (with at least 2 Reviewers).

[openjdk]

@kevinrushforth has indicated that a compatibility and specification (CSR) request is needed for this pull request.

@andy-goryachev-oracle please create a CSR request for issue JDK-8350048 with the correct fix version. This pull request cannot be integrated until the CSR request is approved.

[mlbridge]

Webrevs

• 00: Full (021fddd2)