java.lang.NullPointerException
at org.come.socket.GameClient.getLocalMac(GameClient.java:243)
at org.come.socket.GameClient.getServerIpAndPort(GameClient.java:192)
at org.come.test.Main.main(Main.java:13)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:85)
at com.exe4j.runtime.WinLauncher.main(WinLauncher.java:94)
GameClient.java:243出错了，你是没有创建socket对象吧。
你自己写的？
在GameClient.java 243行获取本地网卡mac地址时出现空指针。
需要看到实际代码才知道怎么改