RFR: 8286867: Update #getGlyphCode return a negative number

[Kevin Rushforth]

On Fri, 13 May 2022 12:21:32 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> * Submit a bug report with a test case at [bugreport.java.com](https://bugreport.java.com/)

I see that you already have submitted a bug report. You should get an email when it is made public.

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PR: https://git.openjdk.java.net/jfx/pull/795