RFR: 4884570: StreamPrintService.isAttributeValueSupported does not work properly for SheetCollate [v3]

[Sergey Bylokhov]

On Wed, 5 Jan 2022 20:21:07 GMT, Phil Race <prr at openjdk.org> wrote:

>> This fixes a longstanding consistency issue where the Postscript StreamPrintService would report SheetCollate.UNCOLLATED in a list of supported values then report it was not supported under the same conditions.
>
> Phil Race has updated the pull request incrementally with one additional commit since the last revision:
> 
>    4884570: StreamPrintService.isAttributeValueSupported does not work properly for SheetCollate

Marked as reviewed by serb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/6963