Bob

Seems like it may be an old Java? [bnewell@fatman bin]$ java -showversion openjdk version "1.8.0_442" OpenJDK Runtime Environment (build 1.8.0_442-b06) OpenJDK 64-Bit Server VM (build 25.442-b06, mixed mode) From the package manager I see I have jre8 installed. That would explain everything but I don't know why I would have such an old version when many newer versions are available. However I will not rush to update! Apologies for my original post not being helpful.

Hmm. I downloaded the version just now from the Arch Linux AUR repository and everything seems to work fine.