Hello All,

I have developed a application using struts and hibernate.

The application works fine when a server restart is done but after the application is idle for some period of time i.e today if i have logged in to the system it works fine than i logout and if i try to login tomorrow i am not able to login into the application and on checking the logs i get the following exception.




Hibernate: select logininfo0_.ID as ID0_, logininfo0_.first_name as first2_0_, logininfo0_.last_name as last3_0_, logininfo0_.login_name as login4_0_, logininfo0_.password as password0_, logininfo0_.email_id as email6_0_, logininfo0_.role_id as role7_0_, logininfo0_.expire_date as expire8_0_, logininfo0_.created_by as created9_0_, logininfo0_.created_date as created10_0_, logininfo0_.modified_by as modified11_0_, logininfo0_.modified_date as modified12_0_, logininfo0_.organization_id as organiz13_0_ from ot_login_details logininfo0_ where logininfo0_.login_name='admin' and logininfo0_.password='g0ldenfly'
Oct 12, 2009 10:16:53 AM org.hibernate.util.JDBCExceptionReporter logExceptions
WARNING: SQL Error: 0, SQLState: 08S01
Oct 12, 2009 10:16:53 AM org.hibernate.util.JDBCExceptionReporter logExceptions
SEVERE: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.io.EOFException

STACKTRACE:

java.io.EOFException
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1845)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2292)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2788)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1534)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1625)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2226)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1812)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1657)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
at org.hibernate.loader.Loader.doQuery(Loader.java:662)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:300)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1127)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
at com.webaccess.onlinetest.hibernate.HibernateConnection.executeQueryOneObj(HibernateConnection.java:187)
at com.webaccess.onlinetest.model.dao.UserDAO.getUserByLoginNameAndPassword(UserDAO.java:282)
at com.webaccess.onlinetest.model.manager.UserManager.getUserByLoginNameAndPassword(UserManager.java:43)
at com.webaccess.onlinetest.actions.LoginAction.execute(LoginAction.java:81)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)


** END NESTED EXCEPTION **


org.hibernate.exception.JDBCConnectionException: could not execute query
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:72)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:2153)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:300)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1127)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
at com.webaccess.onlinetest.hibernate.HibernateConnection.executeQueryOneObj(HibernateConnection.java:187)
at com.webaccess.onlinetest.model.dao.UserDAO.getUserByLoginNameAndPassword(UserDAO.java:282)
at com.webaccess.onlinetest.model.manager.UserManager.getUserByLoginNameAndPassword(UserManager.java:43)
at com.webaccess.onlinetest.actions.LoginAction.execute(LoginAction.java:81)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.io.EOFException

STACKTRACE:

java.io.EOFException
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1845)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2292)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2788)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1534)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1625)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2226)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1812)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1657)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
at org.hibernate.loader.Loader.doQuery(Loader.java:662)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:300)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1127)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
at com.webaccess.onlinetest.hibernate.HibernateConnection.executeQueryOneObj(HibernateConnection.java:187)
at com.webaccess.onlinetest.model.dao.UserDAO.getUserByLoginNameAndPassword(UserDAO.java:282)
at com.webaccess.onlinetest.model.manager.UserManager.getUserByLoginNameAndPassword(UserManager.java:43)
at com.webaccess.onlinetest.actions.LoginAction.execute(LoginAction.java:81)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)


** END NESTED EXCEPTION **


at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2504)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2788)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1534)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1625)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2226)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1812)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1657)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1669)
at org.hibernate.loader.Loader.doQuery(Loader.java:662)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
... 32 more
Hibernate: select logininfo0_.ID as ID0_, logininfo0_.first_name as first2_0_, logininfo0_.last_name as last3_0_, logininfo0_.login_name as login4_0_, logininfo0_.password as password0_, logininfo0_.email_id as email6_0_, logininfo0_.role_id as role7_0_, logininfo0_.expire_date as expire8_0_, logininfo0_.created_by as created9_0_, logininfo0_.created_date as created10_0_, logininfo0_.modified_by as modified11_0_, logininfo0_.modified_date as modified12_0_, logininfo0_.organization_id as organiz13_0_ from ot_login_details logininfo0_ where logininfo0_.login_name='admin' and logininfo0_.password='g0ldenfly'
Oct 12, 2009 10:17:09 AM org.hibernate.util.JDBCExceptionReporter logExceptions
WARNING: SQL Error: 0, SQLState: 08003
Oct 12, 2009 10:17:09 AM org.hibernate.util.JDBCExceptionReporter logExceptions
SEVERE: No operations allowed after connection closed.
org.hibernate.exception.JDBCConnectionException: could not execute query
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:72)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:2153)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
at org.hibernate.loader.Loader.list(Loader.java:2024)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:300)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:153)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1127)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:749)
at com.webaccess.onlinetest.hibernate.HibernateConnection.executeQueryOneObj(HibernateConnection.java:187)
at com.webaccess.onlinetest.model.dao.UserDAO.getUserByLoginNameAndPassword(UserDAO.java:282)
at com.webaccess.onlinetest.model.manager.UserManager.getUserByLoginNameAndPassword(UserManager.java:43)
at com.webaccess.onlinetest.actions.LoginAction.execute(LoginAction.java:81)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLException: No operations allowed after connection closed.
at com.mysql.jdbc.Connection.checkClosed(Connection.java:2647)
at com.mysql.jdbc.Connection.prepareStatement(Connection.java:1300)
at com.mysql.jdbc.Connection.prepareStatement(Connection.java:1281)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:442)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:368)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:105)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
at org.hibernate.loader.Loader.doQuery(Loader.java:661)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
... 32 more





The hibernate config xml that i have defined is as follows



<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"hibernate-configuration-3.0.dtd">


<hibernate-configuration>
<session-factory >
<!-- Database Configuratoin. -->
<property name="hibernate.connection.driver_class">org.gjt.mm.mysql.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/solution</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="hibernate.hbm2ddl.auto">none</property>

<!-- configuration pool via c3p0-->
<property name="c3p0.Acquire_Increment">1</property>
<property name="c3p0.IdleConnectionTestPeriod">100</property> <!-- seconds -->
<property name="c3p0.MaxPoolSize">100</property>
<property name="c3p0.MaxStatements">0</property>
<property name="c3p0.MinPoolSize">10</property>
<property name="c3p0.timeout">10000</property> <!-- seconds -->
<!-- DEPRECATED very expensive property name="c3p0.validate>-->
<!-- Session Factory Configuration -->
<property name="hibernate.session_factory_name">HibernateSessionFactory</property>

<!-- Hibernate Database Mapping files -->
<mapping resource="/com/model/beans/LoginInfo.hbm.xml" />
<mapping resource="/com/model/beans/Category.hbm.xml" />
<mapping resource="/com/model/beans/Test.hbm.xml" />
<mapping resource="/com/model/beans/Examinee.hbm.xml" />
<mapping resource="/com/model/beans/Options.hbm.xml" />
<mapping resource="/com/model/beans/Questions.hbm.xml" />
<mapping resource="/com/model/beans/Section.hbm.xml" />
<mapping resource="/com/model/beans/SubSection.hbm.xml" />
<mapping resource="/com/model/beans/TestResults.hbm.xml" />
<mapping resource="/com/model/beans/TestSection.hbm.xml" />
<mapping resource="/com/model/beans/UserRole.hbm.xml" />
</session-factory>
</hibernate-configuration>


Please let me know what is causing the issue.

Any help would be greatly appreciated.

Thanks in advance

Shekar