Does a JVM listen on an IPv6 debugging port?

Question

I cannot connect to a remote JVM on a host that only has an IPv6 interface.

What parameter should be passed to the JVM to enable listening on the IPv6 interface?

Answer 1

Unfortunately you can't. The Java VM being debugged only listens on IPv4. This is a known issue and is in Oracle's documentation:

The current implementation on the target VM side only supports IPv4, but this could change in a future release so that both IPv4 and IPv6 are supported.

One way to work around this would be to have a program (such as xinetd or rinetd for *nix-based servers) installed on the host, listening on IPv6, and forwarding connections to the IPv4 port that the JVM is listening on.