[Rev 01] RFR: 8243255: Font size is large in JavaFX app with enabled Monocle on Raspberry Pi

[Kevin Rushforth]

On Tue, 28 Apr 2020 23:17:48 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Alexander Scherbatiy has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Search javafx.platform.properties in jfx-runtime/lib directory
>
> Marked as reviewed by kcr (Lead).

Pending review by @johanvos

> modules/javafx.base/src/main/java/com/sun/javafx/PlatformUtil.java line 241:
> 
>> 240:                     s.lastIndexOf('/'), s.lastIndexOf('\\'));
>> 241:             return new File(new URL(s.substring(0, lastIndexOfSlash + 1)).getPath());
>> 242:         } catch (MalformedURLException e) {
> 
> The previous code looks like a hold-over from JDK 8, where jfxrt.jar was in `lib/ext`. It also assumes that the JavaFX
> runtime is being loaded from a jar URL, which isn't necessarily the case. Probably the only reason it hasn't caused
> problems before now is that it is only used to locate `javafx.platform.properties`. Worth noting is that we won't get
> here in the case JavaFX is jlinked into the Java runtime, although in that case, the fallback method of locating it
> relative to the JDK should be used.  I'll take a closer look this specific change, but I think it should be OK.  I'll
> defer the review as a whole to Johan.

I can confirm that this part of the fix is correct. The change to DPI looks correct to me, too.

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PR: https://git.openjdk.java.net/jfx/pull/193