Code:
WARN [2009-03-15 18:38:48,737] [Thread-5]: invalidBEGFPos
ERROR [2009-03-15 18:38:48,743] [Thread-5]: serverLoop disrupted
ERROR [2009-03-15 18:38:48,744] [Thread-5]: java.lang.IllegalStateException
java.lang.IllegalStateException
at Fm.b(SourceFile:646)
at Gw.<init>(SourceFile:27)
at bN.r(SourceFile:431)
at f.b(SourceFile:97)
at f.d(SourceFile:149)
at e.d(SourceFile:102)
at Lu.i(SourceFile:140)
at oK.d(SourceFile:1044)
at Av.s(SourceFile:703)
at yn.aj(SourceFile:986)
at yn.a(SourceFile:963)
at Fm.a(SourceFile:279)
at vH.o(SourceFile:221)
at vH.run(SourceFile:241)
at java.lang.Thread.run(Unknown Source)
INFO [2009-03-15 18:38:48,745] [Thread-5]: shutting down server
Don't know what brought it on but it happened.