Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Mojang JIRA by theo, 1 year ago
This exception has no message.
via mojang.com by Unknown author, 2 years ago
java.lang.NullPointerException at net.minecraft.server.MinecraftServer.m(SourceFile:286) at bkw.m(SourceFile:234) at net.minecraft.server.MinecraftServer.run(SourceFile:372) at hh.run(SourceFile:582)