Players are unable to join the server, with message "End of Stream"
java.lang.NullPointerException
at ek.a(SourceFile:231)
at fh.a(SourceFile:50)
at ek.a(SourceFile:222)
at ck.h(SourceFile:182)
at ck.d(SourceFile:16)
at cm.run(SourceFile:115)
Linked issues
Comments
I encountered this problem today as well, running 13w19a. It appears to be related to the display location 'belowName' or possibly the 'health' objective in the scoreboard system. I found a similar bug (https://mojang.atlassian.net/browse/MC-15134) and they had found that deleting scoreboard.dat from the world's data folder solved the problem.
I had recently added a 'health' objective to display 'belowName'. I opened scoreboard.dat and deleted the tag 'slot_2' under display. This fixed the problem.
To reproduce in 13w19a, set health to display below a the players' name. Log out, and attempt to log in again. At this point you should receive the end of stream error.
I can also confirm that removing a 'health' scoreboard objective will fix this problem.
There's also another exception 2 seconds later, here's the log: