OpenJDK 8：无法解析主机名

我试图在openJDK 8（Ubuntu 8u131-b11-0ubuntu1.17.04.1上的最新版本）上运行slf4j和log4j 2.8。OpenJDK 8：无法解析主机名

当通过行家的OpenJDK运行简单的Java类是无法解析本地主机名：

Exception in thread "AWT-EventQueue-0" java.lang.NoSuchFieldError: preferIPv6Address 
    at java.base/java.net.InetAddress.init(Native Method) 
    at java.base/java.net.InetAddress.init(Native Method) 
    at java.base/java.net.InetAddress.<clinit>(InetAddress.java:333) 
    at org.apache.logging.log4j.core.util.NetUtils.getLocalHostname(NetUtils.java:53) 
    at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:539) 
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617) 
    at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634) 
    at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229) 
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152) 
    at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45) 
    at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194) 
    at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:122) 
    at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:43) 
    at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46) 
    at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29) 
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358) 
    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)

貌似方法

public static InetAddress getLocalHost() throws UnknownHostException

比在甲骨文的Java实现方式不同。

/etc/hosts包含IPv6的记录：

::1  ip6-localhost ip6-loopback

来源

2017-05-24 Tombart

问题是由JDK9安装在系统上造成的。 Log4j 2.8尚未与Java 9兼容。

删除JDK9或设置首选项到JDK8应该可以解决问题。在Debian上：

sudo update-alternatives --config java

来源

2017-05-25 07:57:21 Tombart

OpenJDK 8：无法解析主机名

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