java - NoClassDefFoundError : Could not initialize class sun. awt.X11FontManager

Question

当我们从 Oracle JDK-8 迁移到 Open JDK-11 时，Apache POI excel 生成有问题
已经试过了-Djava.awt.headless=true

org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11FontManager
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1053)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:998)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:901)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:875)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)```

Answer 1

如果您使用的是 docker 'slim images'在 openjdk 中，图像不再包含包“fontconfig”和“libfreetype6”。

查看docker file中的差异openjdk:11-slim 和 docker file openjdk:8-slim。

你可以选择另一个 docker 镜像(例如 openjdk:11-windowsservercore )，或者自己在你的 docker 文件中安装这些包:

RUN apt-get update; apt-get install -y fontconfig libfreetype6