The java.net.UnknownHostException method is used as remote calling and for callback routine fail. RMI uses default settings to RESOLVE the server HOSTNAME like WINS NAMES, DHCP names, etc. This happens due to which RMI client invokes the remote method using the reference that consists of unresolved server hostname and the client will produce UnknownHostException. RMI servers provide fully qualified hostname or IP ADDRESS to resolve all RMI clients error reports. RMI provides an operation to remotely callback a program that serves RMI object and provide resolvable hostname to pass it to the RMI clients. UnkownHostException is thrown when an applet is failed to provide a useable server hostname. The property java.rmi.server.hostname can be set to GET from the server the correct IP address or hostname.

The java.net.UnknownHostException method is used as remote calling and for callback routine fail. RMI uses default settings to resolve the server hostname like WINS names, DHCP names, etc. This happens due to which RMI client invokes the remote method using the reference that consists of unresolved server hostname and the client will produce UnknownHostException. RMI servers provide fully qualified hostname or IP address to resolve all RMI clients error reports. RMI provides an operation to remotely callback a program that serves RMI object and provide resolvable hostname to pass it to the RMI clients. UnkownHostException is thrown when an applet is failed to provide a useable server hostname. The property java.rmi.server.hostname can be set to get from the server the correct IP address or hostname.