RFR: 8288137: The set of available printers is not updated without application restart [v2]

[Phil Race]

On Fri, 8 Jul 2022 18:12:36 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> The last time we updated.
>> If the number of printers has changed I will always rebuild the printer list (set) but if they are the same
>> what are the odds a printer was removed and another one added ? 
>> I figured if 2 minutes has passed since we last checked it is worth it, but I am not re-setting this every
>> time we called getAllPrinters() else if you kept calling it every 30 seconds .. then we'd never get past that check.
>
> In that case shouldn't the assignment of `lastTime` be moved up two lines, right below the call to `updatePrinters`? Or am I  missing something?

I guess I knew what I wanted but didn't have the code to match :-)

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PR: https://git.openjdk.org/jfx/pull/817