RFR: 8335469: [XWayland] crash when an AWT ScreenCast session overlaps with an FX ScreenCast session [v3]

[Alexander Zvegintsev]

> This is the FX counterpart of the [openjdk/jdk/pull/22131](https://github.com/openjdk/jdk/pull/22131) / `b.`(aka crash prevention part)
> 
> It does not crash without the [openjdk/jdk/pull/22131](https://github.com/openjdk/jdk/pull/22131) / `a.` part.
> 
> The crash prevention part  is the same for the JDK and JavaFX, except that this PR includes a test.
> 
> ---- 
> 
> Internally the ScreenCast session keeps open for 2s (both JDK and JFX, and their implementations are almost identical).
> This is to reduce overhead in case of frequent consecutive screen captures.
> 
> When we perform a [cleanup](https://github.com/openjdk/jdk/blob/db56266ad164b4ecae59451dc0a832097dbfbd8e/src/java.desktop/unix/native/libawt_xawt/awt/screencast_pipewire.c#L91) to close the session, we internally call [`pw_deinit`](https://docs.pipewire.org/group__pw__pipewire.html#gafa6045cd7391b467af4575c6752d6c4e).
> 
> It becomes a problem if these sessions overlap in time, so that the second session cleanup crashes when it tries to call pipewire functions without initializing the pipewire system by  [`pw_init`](https://docs.pipewire.org/group__pw__pipewire.html#ga06c879b2d800579f4724109054368d99) (please note that `This function can be called multiple times.`).
> 
> So the solution is not to call `pw_deinit` because we don't really need it, and it needs to be applied to both the JDK and JavaFX.
> 
> [jdk commit](https://github.com/openjdk/jdk/pull/22131/commits/19956fda202269e92ec70670bc88c8d3c7accf73) / [jfx commit](https://github.com/openjdk/jfx/pull/1639/commits/dba8a8871a38831d0a0da697a2be41f0c240c8f0)
> 
> ----
> 
> The newly introduced test is disabled for now(as part  of [JDK-8335470](https://bugs.openjdk.org/browse/JDK-8335470)), because it requires the fix on both the JavaFX and JDK sides.
> For the same reason `tests/system/src/test/java/test/robot/javafx/embed/swing/SwingNodeJDialogTest.java` and `tests/system/src/test/java/test/robot/javafx/scene/SRGBTest.java` are not enabled back.
> But if the JDK and JavaFX have the fixes, everything works fine.
> Testing in other different scenarios also looks good.

Alexander Zvegintsev has updated the pull request incrementally with two additional commits since the last revision:

 - formatting
 - ParameterizedTest

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

Changes:
  - all: https://git.openjdk.org/jfx/pull/1639/files
  - new: https://git.openjdk.org/jfx/pull/1639/files/eb273f0c..a2319785

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1639&range=02
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1639&range=01-02

  Stats: 26 lines in 1 file changed: 2 ins; 8 del; 16 mod
  Patch: https://git.openjdk.org/jfx/pull/1639.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1639/head:pull/1639

PR: https://git.openjdk.org/jfx/pull/1639