解决一次centos7-java17访问接口始终报错 Fontconfig head is null

### 错误代码
1.检查运行info信息提示如下
```
Caused by: java.lang.reflect.InvocationTargetException: null
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at java.desktop/sun.font.FontManagerFactory$1.run(FontManagerFactory.java:85)
        ... 125 common frames omitted
Caused by: java.lang.RuntimeException: Fontconfig head is null, check your fonts or fonts configuration
        at java.desktop/sun.awt.FontConfiguration.getVersion(FontConfiguration.java:1269)
        at java.desktop/sun.awt.FontConfiguration.readFontConfigFile(FontConfiguration.java:224)
        at java.desktop/sun.awt.FontConfiguration.init(FontConfiguration.java:106)
        at java.desktop/sun.awt.X11FontManager.createFontConfiguration(X11FontManager.java:706)
        at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:358)
        at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:315)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
        at java.desktop/sun.font.SunFontManager.<init>(SunFontManager.java:315)
        at java.desktop/sun.awt.FcFontManager.<init>(FcFontManager.java:35)
        at java.desktop/sun.awt.X11FontManager.<init>(X11FontManager.java:56)
```

2.解决办法需要安装字体库
```
yum install fontconfig freetype
```