Minecraft 1.9pre3 server bug

2011-10-06 18:33:33 [INFO] CONSOLE: Stopping the server..
2011-10-06 18:33:33 [INFO] Stopping server
2011-10-06 18:33:33 [INFO] Saving chunks
java.io.IOException: Stream Closed
        at java.io.RandomAccessFile.seek(Native Method)
        at oj.a(SourceFile:342)
        at oj.a(SourceFile:279)
        at ho.close(SourceFile:259)
        at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:241)
        at java.io.FilterOutputStream.close(FilterOutputStream.java:160)
        at nk.a(SourceFile:119)
        at nk.c(SourceFile:107)
        at cl.a(SourceFile:29)
        at cl.run(SourceFile:22)
        at java.lang.Thread.run(Thread.java:722)