com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: 

** BEGIN NESTED EXCEPTION ** 

java.net.SocketException
MESSAGE: Broken pipe

STACKTRACE:

java.net.SocketException: Broken pipe
	at java.net.SocketOutputStream.socketWrite0(Native Method)
	at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
	at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
	at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2689)
	at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2618)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1551)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
	at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
	at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:4870)
	at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:237)
	at com.sw4i.dereta.dao.DB.beginTransaction(DB.java:71)
	at com.sw4i.dereta.view.users.EditUserAction.perform(EditUserAction.java:61)
	at org.apache.struts.action.Action.execute(Action.java:415)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:480)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
	at com.sw4i.dereta.Sw4IActionServlet.process(Sw4IActionServlet.java:22)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at com.sw4i.dereta.filters.CommonFilter.doFilter(CommonFilter.java:44)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
	at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:619)


** END NESTED EXCEPTION **



Last packet sent to the server was 1 ms ago.
	at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2707)
	at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2618)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1551)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
	at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
	at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:4870)
	at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:237)
	at com.sw4i.dereta.dao.DB.beginTransaction(DB.java:71)
	at com.sw4i.dereta.view.users.EditUserAction.perform(EditUserAction.java:61)
	at org.apache.struts.action.Action.execute(Action.java:415)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:480)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
	at com.sw4i.dereta.Sw4IActionServlet.process(Sw4IActionServlet.java:22)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at com.sw4i.dereta.filters.CommonFilter.doFilter(CommonFilter.java:44)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:204)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
	at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:619)