Update applemenu module to use only JDK Desktop APIs.

[neilcsmith-net]

Update the macOS-only applemenu module to remove legacy code and binaries.

• Merge NbApplicationAdapterJDK9 into the base class and delete legacy code.
• Remove requirement for external binaries (inc. one on OSUOSL).
• Update to javac release 17 (left over from Bump platform cluster to javac.release 17 #9012)

[mbien]

cool! There might be another small apple related cleanup (potentially separate)

netbeans/platform/applemenu/src/org/netbeans/modules/applemenu/ShowInFinder.java

Line 84 in 52347ee

final Class<?> fmClz = Class.forName("com.apple.eio.FileManager"); //NOI18N

This usage is (hopefully) the only reason we need the --add-exports=java.desktop/com.apple.eio=ALL-UNNAMED flag for.

I believe this can be achieved with Desktop.getDesktop().open(directory); these days, no? Would remove a flag and a startup warning on non-mac systems.

[neilcsmith-net]

IMO, both the finder and the minimize action should be reviewed and possibly removed from this module. The finder one should be replaced with an all-OS action to open the file in the native file browser. Why does only macOS get this? People have requested this elsewhere. And the minimize one doesn't seem to work as it's shadowed by something else.

Had deliberately left those alone for now.

[mbien]

code looks good