Error report

Unexpected errror

(48020854) 2010-09-09
com.sw4i.commons.WrappedException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 117,794 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
Nesded exception: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 117,794 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	at sun.reflect.GeneratedConstructorAccessor181.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1118)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3055)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2941)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3489)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2562)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2512)
	at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1476)
	at org.apache.tomcat.dbcp.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
	at com.sw4i.commons.db.BaseDao.loadList(BaseDao.java:296)
	at com.sw4i.commons.db.BaseDao.loadList(BaseDao.java:312)
	at com.sw4i.platform.dao.CmsItemDao.loadItemList(CmsItemDao.java:217)
	at com.sw4i.platform.dao.CmsItemDao.loadRoot(CmsItemDao.java:163)
	at com.sw4i.platform.model.ItemPath.findItem(ItemPath.java:160)
	at com.sw4i.platform.model.ItemPath.findItem(ItemPath.java:156)
	at com.sw4i.app.MemberFilter.doFilter(MemberFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.sw4i.commons.web.CommonFilter$1.execute(CommonFilter.java:60)
	at com.sw4i.commons.web.LoginContext.withLoginContext(LoginContext.java:39)
	at com.sw4i.commons.web.CommonFilter.doFilter(CommonFilter.java:58)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:427)
	at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:384)
	at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2502)
	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2952)
	... 32 more