RFR: 8301254: UNIX sun/font coding does not detect SuSE in openSUSE Leap distribution [v3]

[Alexander Scherbatiy]

> [JDK-8278549](https://bugs.openjdk.org/browse/JDK-8278549)` UNIX sun/font coding misses SUSE distro detection on recent distro SUSE 15` adds SuSE detection by checking SLES os name property in `/etc/os-release` file.
> 
> `opensuse/leap:15.4` docker defines os name property as `"openSUSE Leap"` in `/etc/os-release` file which is not recognized as SuSE.
> 
> The issue is reproduced with Oracle jdk-19.0.2 with custom fontconfig.SuSE.properties file copied to jdk-19.0.2/lib directory.
> 
> The fix checks if os name property from  `/etc/os-release` contains `SUSE`  substring.
> 
> Steps to reproduce.
> - Download Oracle jdk-19.0.2
> - Copy custom [fontconfig.SuSE.properties](https://bugs.openjdk.org/secure/attachment/102435/fontconfig.SuSE.properties) file to jdk-19.0.2/lib directory.
> - Run the `opensuse/leap:15.4` docker and install freetype and dejavu fonts (do not install fontconfig)
> 
> docker run --rm --security-opt seccomp=unconfined -it opensuse/leap:15.4 bash
> zypper install -y dejavu-fonts
> zypper install -y freetype2
> 
> - Run HelloImage java sample in the docker
> 
> import javax.imageio.ImageIO;
> import java.awt.*;
> import java.awt.image.BufferedImage;
> import java.io.File;
> 
> public class HelloImage {
> 
>     public static void main(String[] args) throws Exception {
> 
>         BufferedImage buff = new BufferedImage(300, 200, BufferedImage.TYPE_INT_RGB);
>         Graphics2D g = buff.createGraphics();
>         g.setColor(Color.WHITE);
>         g.fillRect(0, 0, buff.getWidth(), buff.getHeight());
> 
>         g.setColor(Color.BLUE);
>         g.setFont(g.getFont().deriveFont(32f));
>         g.drawString("Hello, Image!", 50, 50);
>         g.dispose();
> 
>         File file = new File("hello-image.png");
>         ImageIO.write(buff, "png", file);
>     }
> }
> 
> 
> 
> ./jdk-19.0.2/bin/javac HelloImage.java
> ./jdk-19.0.2/bin/java HelloImage
> Exception in thread "main" java.lang.NullPointerException: Cannot load from short array because "sun.awt.FontConfiguration.head" is null
> 	at java.desktop/sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1261)
> 	at java.desktop/sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:221)
> 	at java.desktop/sun.awt.FontConfiguration.init(FontConfiguration.java:105)
> 	at java.desktop/sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:706)
> 	at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:352)
> 	at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:309)
> 	at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
> 	at java.desktop/sun.font.SunFontManager.<init>(SunFontManager.java:309)
> 	at java.desktop/sun.awt.FcFontManager.<init>(FcFontManager.java:35)
> 	at java.desktop/sun.awt.X11FontManager.<init>(X11FontManager.java:56)
> 	at java.desktop/sun.font.PlatformFontInfo.createFontManager(PlatformFontInfo.java:37)
> 	at java.desktop/sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:51)
> 	at java.desktop/java.awt.Font.getFont2D(Font.java:526)
> 	at java.desktop/java.awt.Font$FontAccessImpl.getFont2D(Font.java:265)
> 	at java.desktop/sun.font.FontUtilities.getFont2D(FontUtilities.java:151)
> 	at java.desktop/sun.java2d.SunGraphics2D.checkFontInfo(SunGraphics2D.java:671)
> 	at java.desktop/sun.java2d.SunGraphics2D.getFontInfo(SunGraphics2D.java:837)
> 	at java.desktop/sun.java2d.pipe.GlyphListPipe.drawString(GlyphListPipe.java:46)
> 	at java.desktop/sun.java2d.SunGraphics2D.drawString(SunGraphics2D.java:2931)
> 	at HelloImage.main(HelloImage.java:17)

Alexander Scherbatiy has updated the pull request incrementally with one additional commit since the last revision:

  Extract os name as ID from /etc/os-release file for fonts configuration

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/12260/files
  - new: https://git.openjdk.org/jdk/pull/12260/files/ba04df3f..d1d7f2f0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12260&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12260&range=01-02

  Stats: 28 lines in 2 files changed: 12 ins; 4 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/12260.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12260/head:pull/12260

PR: https://git.openjdk.org/jdk/pull/12260