Hello!

I recently updated Spigot from 1.9.2 to 1.9.4, and at the same time updated PEX to build #125. Now when I start my server, a NullPointerException is thrown when PEX tries to load. It appears PEX tried to convert my permissions.yml to permissions.json, but the new permissions.json file is empty. My server won't let me connect anymore, which I realize may or may not be related. Update: My server is letting me connect now, so that issue appears unrelated after all.

I updated PEX to build #128, but this did not fix the problem.

I've attached recent server logs (since the original update) and PEX configuration files. When you have time, would you mind taking a look? (It's entirely possible I messed something up.)

Thank you so much for all your work on this plugin! Please let me know if more information would be helpful.

Environment details:
OS: Windows Server 2012
Java: 8 update 91 (64-bit)
MC: Spigot 1.9.4
PEX: build #128

PEX Issue.zip

This has been fixed in 8ef4d5e. You'll have to delete the permissions.json and rename permissions.yml.legacy-backup back to permissions.yml -- there was an issue causing PEX to think it hadn't converted yet when it had, and try to convert a file that didn't exist anymore (permissions.yml), which it interpreted as an empty file, overwriting the permissions.json.