RFR: 8305321: Remove unused exports in java.desktop [v3]

[Daniel Jeliński]

On Thu, 12 Oct 2023 10:00:15 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> Keep in mind that on Linux libawt is split into libawt, libawt_headless and libawt_xawt, and the export/import dependencies are different.
>
> I totally understand this. However, Windows specific symbols:
> 
>            9    8 000380A0 GDIWinSD_InitDC
>          10    9 000385F0 GDIWindowSurfaceData_GetComp
>          11    A 000386C0 GDIWindowSurfaceData_GetOps
>          12    B 000386D0 GDIWindowSurfaceData_GetOpsNoSetup
>          13    C 000386E0 GDIWindowSurfaceData_GetWindow
> 
> and others are still exported from `awt.dll`, I believe these can be made private.
> 
> Yet I agree we need to be careful not to hide something that's used from other libraries.

Good point. I only checked the Linux exports/imports, will check the Windows-specific exports now.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13261#discussion_r1357845707