Java异常：未知协议：udp

Question

I am trying to run a basic java program as part of reverse engineering an application. I am getting

java.net.MalformedURLException: unknown protocol: udp

exception while running following code

public static void main(String[] args) throws MalformedURLException {
        URL url = new URL("udp://xxx.xxxx.com:1234/");
    }

Thanks in Advance.

Answer 1

the problem here is really that udp is not a protocol; it's a transport, like tcp. You can't use a tcp://host:port/ URL either.

Answer 2

Cause

You are using a version of the Java Developer Kit (JDK) that was released prior to JDK 1.4.