My MineOS server has been chugging along nicely for well over 18 months, hosting about a dozen different worlds in that time. I was adding a new world to my server today when I found out the drive was almost full. I ended up removing 230+ archives from one world and deleting four other worlds that were no longer in use.
After creating the new world which I was originally planning to do, I found out that none of my worlds would start – including the one that has been running for over a year! I removed the new world, updated all my packages (including kernel and OpenJDK 7 upgrades), and rebooted. Still no luck. I tried using the current profile (‘vanilla186’) on my long-running world (‘Creative’), and when that didn’t work, I made a new profile (‘vanilla187’) and still had no luck in starting any world.
I dropped to the console and ran this command:
/usr/bin/java -server -Xmx896M -Xms256M -jar /var/games/minecraft/servers/Creative/minecraft_server.1.8.7.jar
The output was as follows:
[00:30:15] [main/FATAL]: Failed to start the minecraft server java.lang.NullPointerException at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:213) ~[minecraft_server.1.8.7.jar:?] at com.google.common.collect.Lists$ReverseList.<init>(Lists.java:767) ~[minecraft_server.1.8.7.jar:?] at com.google.common.collect.Lists.reverse(Lists.java:759) ~[minecraft_server.1.8.7.jar:?] at lt.b(SourceFile:156) ~[minecraft_server.1.8.7.jar:?] at lt.<init>(SourceFile:43) ~[minecraft_server.1.8.7.jar:?] at net.minecraft.server.MinecraftServer.<init>(SourceFile:168) ~[minecraft_server.1.8.7.jar:?] at ko.<init>(SourceFile:53) ~[minecraft_server.1.8.7.jar:?] at net.minecraft.server.MinecraftServer.main(SourceFile:689) [minecraft_server.1.8.7.jar:?]
Needless to say, my server is now as useful as a paperweight, but I don’t know enough about Java/OpenJDK to understand these errors. Any assistance would be greatly appreciated!