Help, server crashing

Can someone please tell me what this means?


2012-07-25 02:23:51 [SEVERE] Minequery server thread shutting down
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.DataOutputStream.writeBytes(Unknown Source)
at net.minestatus.minequery.Request.handleRequest(Request.java:129)
at net.minestatus.minequery.Request.run(Request.java:58)
at java.lang.Thread.run(Unknown Source)