[jdk16u] RFR: 8260592: jpackage tests fail when Desktop is not supported

[Alexey Semenyuk]

On Tue, 2 Mar 2021 19:40:30 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> This unbreaks jpackage tests on x86_32 cross-compiled builds. 
> 
> Additional testing:
>  - [x] Linux x86_32 `tools/jpackage` (pass cleanly)

Marked as reviewed by asemenyuk (Author).

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PR: https://git.openjdk.java.net/jdk16u/pull/70