<AWT Dev> RFR: 8265761: Font with missed font family name is not properly printed on Windows

[Alexander Scherbatiy]

On Sun, 25 Apr 2021 20:53:11 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Would it be better to use isBlank() instead of isEmpty() to check a font family name is blank?
>> 
>>         if (family.isBlank()) {
>>             return false;
>>         }
>
> I think so.

I changed the test SampleBow font family name to one space [SampleBowOneSpaceFamilyName.ttf](https://bugs.openjdk.java.net/secure/attachment/94402/SampleBowOneSpaceFamilyName.ttf) and to two spaces [SampleBowTwoSpacesFamilyName.ttf](https://bugs.openjdk.java.net/secure/attachment/94403/SampleBowTwoSpacesFamilyName.ttf)

The  PrintFontSample sample program properly prints text drawn by Graphics2D.drawString() and  Graphics2D.drawGlyphVector() on Windows with jdk 16 with these two fonts.
It looks like the problem is only with selecting a font in GDI with empty font family name.

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PR: https://git.openjdk.java.net/jdk/pull/3631