com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai

Last packet sent to the server was 0 ms ago.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct

orAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC

onstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:353)

at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1

at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2583)

at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2871)

at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1601)

at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1710)

at com.mysql.jdbc.Connection.execSQL(Connection.java:2430)

at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:4539)

at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyCon

nection.java:881)

at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:

at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326

at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegi

n(HibernateTransactionManager.java:558)

at org.springframework.transaction.support.AbstractPlatformTransactionMa

nager.getTransaction(AbstractPlatformTransactionManager.java:377)

at org.springframework.transaction.interceptor.TransactionAspectSupport.

createTransactionIfNecessary(TransactionAspectSupport.java:263)

at org.springframework.transaction.interceptor.TransactionInterceptor.in

voke(TransactionInterceptor.java:101)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(

ReflectiveMethodInvocation.java:171)

at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invok

e(ExposeInvocationInterceptor.java:89)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(

ReflectiveMethodInvocation.java:171)

at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterc

eptor.intercept(Cglib2AopProxy.java:635)

at com.norain.atsw.service.impl.UserServiceImpl$$EnhancerByCGLIB$$bc130a

d0.userLogin(<generated>)

at com.norain.atsw.action.UserAction.userLogin(UserAction.java:19)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.

java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces

sorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at flex.messaging.services.remoting.adapters.JavaAdapter.invoke(JavaAdap

ter.java:406)

at flex.messaging.services.RemotingService.serviceMessage(RemotingServic

e.java:183)

at flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java

:1417)

at flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndp

oint.java:878)

at flex.messaging.endpoints.amf.MessageBrokerFilter.invoke(MessageBroker

Filter.java:121)

at flex.messaging.endpoints.amf.LegacyFilter.invoke(LegacyFilter.java:15

at flex.messaging.endpoints.amf.SessionFilter.invoke(SessionFilter.java:

at flex.messaging.endpoints.amf.BatchProcessFilter.invoke(BatchProcessFi

lter.java:67)

at flex.messaging.endpoints.amf.SerializationFilter.invoke(Serialization

Filter.java:146)

at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.ja

va:274)

at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java

:377)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl

icationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF

ilterChain.java:206)

at com.norain.atsw.util.AMFSessionFilter.doFilter(AMFSessionFilter.java:

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl

icationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF

ilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV

alve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV

alve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j

ava:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j

ava:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal

ve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav

a:298)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java

:857)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce

ss(Http11Protocol.java:588)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48

at java.lang.Thread.run(Thread.java:662)

Caused by: java.io.EOFException

at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1958)

at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2372)

... 49 more