Some one know this error?

java.io.IOException: Received string length longer than maximum allowed (6656 > 16)
at db.a(SourceFile:221)
at bu.a(SourceFile:30)
at db.a(SourceFile:179)
at bb.i(SourceFile:240)
at bb.c(SourceFile:15)
at bc.run(SourceFile:93)
Iam with a 1.3 server, and keep seeing this error msg all the time. And this one to:

Something's taking too long! 'root.levels.world.tick.mobSpawner' took aprox 220.469299 ms
Something's taking too long! 'root.levels.world.tick' took aprox 261.182772 ms
Something's taking too long! 'root.levels.world' took aprox 270.640077 ms
Something's taking too long! 'root.levels' took aprox 270.76245 ms
Something's taking too long! 'root' took aprox 271.553856 ms

When my debug is turned on.

Some one?

 

First one is a bug or something else.
Second one is just basically a debug message. It's basically saying that it's took a little too long for that task to finish and is suspicious if the application itself is going to go under or not.

 

Moved to the correct forum.

First one looks like its someone logging in with the wrong client version.

 

Thank you guys! I dont know what would be of my with out you, my heroes!