docker openjdk部署拥有验证码的项目报NullPointerException
出错如下:java.lang.NullPointerException: null at sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1264) ~[na:1.8.0_111-internal] at sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:219) ~[na:1.8.0_111-internal] at sun.awt.Fo