Unix [Debian 7][Lite2] Server Hangs Just After Starting

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Vicerious

New Member
Jul 29, 2019
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Operating System, bit type: Debian 7.3 x64
Java version/update, bit type: Tried both OpenJDK-7-JRE x64 and Oracle Java 7 x64
Launcher version: Server issue with Lite2
Completed the troubleshooting guide (y/n): y
Console log, pastebin.com link: No crash log or error generated
Description of the problem:

I've been running a Lite2 server for a while now in a VZ container running Debian 7. The server ran fine for a month or two, but not anymore. As far as I am aware, nothing on the container changed.

When I run the server jar (using ServerStart.sh) in a screen session, the server messages get as far as "Loading NEI" but the MC server itself does not function; meaning it does not respond to entered commands and it does not accept connections from clients.
  • Entering a command, such as "whitelist on" receives no response - though the terminal does advance a line.
  • Entering an invalid command, or just pressing enter, receives no response - though the terminal does advance a line.
  • Trying to connect with a client yields an end of steam error on the client and server.
The things I've tried so far:
  • Wiped the VPS and did a fresh install of everything using Oracle Java 7 with the world from backup.
  • The above and generating a new world instead.
  • Wiped the VPS and did a fresh install of everything using openjdk-7-jre with the world from backup.
  • The above and generating a new world instead.
  • Iterated the above after reapplying the container's resource limit template.
htop and top don't show anything wrong, and there's nothing out of sorts in dmesg. I have root access to the container, and, if it matters, I also have root access to the hosting node. The node's logs don't show any weirdness with the container.

The same thing happens if I try to run a vanilla Minecraft server, and I've made a topic on the Minecraft support forums as well. I have received no response as of yet there.

Any help is appreciated. Thank you for your time.