Seeing too many lsof can't identify protocol

Question

I have a Java process/app. When I run /usr/sbin/lsof -p on that java process, I see a lot of \"can\'t identify protocol\". Also, interestingly, File descriptors(FDs) a

Answer 1

Lsof prints can't identify protocol for half-open TCP/IP connections: https://idea.popcount.org/2012-12-09-lsof-cant-identify-protocol/