linux 上 Openjdk Java 的字体 defined/installed 在哪里

Where are fonts defined/installed for Openjdk Java on linux

在 Ubuntu 上安装了 Oracle 8 jdk,在 jre/lib 中它有各种 fontProperties 文件和一个包含字体的字体目录。但是当安装 OpenJdk 8 时,jre/lib.

中的字体文件中没有这样的字体文件夹

那么它从哪里得到它的字体,它是否有任何字体依赖于在其他地方安装了一些字体的系统。

更新 基于 gerynix

的建议

fc-list

returns 没有字体

GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames()

给予

java.lang.NullPointerException
        at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264)
        at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:219)
        at sun.awt.FontConfiguration.init(FontConfiguration.java:107)
        at sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:774)
        at sun.font.SunFontManager.run(SunFontManager.java:431)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.font.SunFontManager.<init>(SunFontManager.java:376)
        at sun.awt.FcFontManager.<init>(FcFontManager.java:35)
        at sun.awt.X11FontManager.<init>(X11FontManager.java:57)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.lang.Class.newInstance(Class.java:442)
        at sun.font.FontManagerFactory.run(FontManagerFactory.java:83)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:74)
        at sun.java2d.SunGraphicsEnvironment.getFontManagerForSGE(SunGraphicsEnvironment.java:190)
        at sun.java2d.SunGraphicsEnvironment.getAvailableFontFamilyNames(SunGraphicsEnvironment.java:224)
        at sun.java2d.SunGraphicsEnvironment.getAvailableFontFamilyNames(SunGraphicsEnvironment.java:252)
        at sun.java2d.HeadlessGraphicsEnvironment.getAvailableFontFamilyNames(HeadlessGraphicsEnvironment.java:94)
        at Fonts.main(Fonts.java:10)

它从您所在的环境中获取它 运行 您的应用程序。

调查:

GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames()

https://docs.oracle.com/javase/7/docs/api/java/awt/GraphicsEnvironment.html