jdk11 centos 环境图形验证码问题

java.lang.NullPointerException: null
at java.desktop/sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1262)
at java.desktop/sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:225)
at java.desktop/sun.awt.FontConfiguration.init(FontConfiguration.java:107)
at java.desktop/sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:719)
at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:362)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:312)

yum install -y fontconfig