When I'm trying to set up a socket server, I've got an error message:
Exception in thread "main" java.net.BindException: Cannot assign requested address: JVM_Bind at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:383) at java.net.ServerSocket.bind(ServerSocket.java:328) at java.net.ServerSocket.<init>(ServerSocket.java:194) at java.net.ServerSocket.<init>(ServerSocket.java:106) at socketyserver.SocketyServer.main(SocketyServer.java:12) Java Result: 1
Whole code is simplest as it can be:
public static void main(String[] args) throws UnknownHostException, IOException { ServerSocket serverSocket; serverSocket = new ServerSocket(9999); }
I'm 100% sure that my ports are forwarded, Windows Firewall is off. Nothing blocks port 9999. What else can go wrong?
It may be related to a misconfiguration in your /etc/hosts
. In my case, it was like this: 192.168.1.11 localhost
instead of 127.0.0.1 localhost
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