Java.sql.SQLException: Invalid state, the Connection object is closed

Pesoal Tenho uma aplicação web JPA+Hibernate+Sybase com filter e driver de conexão JTDS Utilizo Tomcat 7 e utilizo o pool do Hibernate que mesmo não sendo para produção, funcionou melhor que o do c3p0.
Durante o dia a aplicação funciona tranquilo mas quando chego de manhã e faço uma requisição não funciona mais. Sai um alerta dizendo (“org.hibernate.exception.GenericJDBCException: could not prepare statement” e “invalid state, the connection object is closed”).
Já tentei de tudo, até, como disse antes, com o c3p0 e nada funcionou.
Todo santo dia a mesma coisa, na calada da noite para e só volta se eu der um stop/start no tomcat.

Obrigado

O Log todo é assim

br.com.sistel.excecao.SistemaSistelException: org.hibernate.exception.GenericJDBCException: could not prepare statement
at br.com.sistel.dominio.legado.persistencia.dao.impl.ParticipanteFssDAOImpl.existeParticipanteFss(ParticipanteFssDAOImpl.java:41)
at br.com.sistel.dominio.legado.modelo.negocio.impl.LoginBOS.isParticipante(LoginBOS.java:832)
at br.com.sistel.dominio.legado.modelo.negocio.impl.LoginBOS.recuperarDadosUsuario(LoginBOS.java:157)
at br.com.sistel.dominio.legado.servico.LoginServico.recuperarDadosUsuario(LoginServico.java:29)
at br.com.sistel.dominio.restrito.usuarios.GerenciadorAcessoDeUsuarios.retornarDadosDoUsuario(GerenciadorAcessoDeUsuarios.java:593)
at br.com.sistel.dominio.restrito.usuarios.GerenciadorAcessoDeUsuarios.retornarUsuarioDaSessao(GerenciadorAcessoDeUsuarios.java:176)
at br.com.sistel.dominio.restrito.usuarios.GerenciadorAcessoDeUsuarios.fazerLogin(GerenciadorAcessoDeUsuarios.java:131)
at br.com.sistel.aplicacao.controllers.publico.LoginController.fazerLogin(LoginController.java:80)
at sun.reflect.GeneratedMethodAccessor764.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:111)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at br.com.sistel.aplicacao.controllers.DisableUrlSessionFilter.doFilter(DisableUrlSessionFilter.java:93)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:197)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2441)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2430)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.exception.GenericJDBCException: could not prepare statement
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:47)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:148)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1928)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1897)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1875)
at org.hibernate.loader.Loader.doQuery(Loader.java:919)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:336)
at org.hibernate.loader.Loader.doList(Loader.java:2611)
at org.hibernate.loader.Loader.doList(Loader.java:2594)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2423)
at org.hibernate.loader.Loader.list(Loader.java:2418)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:501)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:371)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:220)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1268)
at org.hibernate.internal.QueryImpl.list(QueryImpl.java:87)
at org.hibernate.internal.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:955)
at br.com.sistel.dominio.legado.persistencia.dao.impl.ParticipanteFssDAOImpl.existeParticipanteFss(ParticipanteFssDAOImpl.java:39)
… 54 more
Caused by: java.sql.SQLException: Invalid state, the Connection object is closed.
at net.sourceforge.jtds.jdbc.JtdsConnection.checkOpen(JtdsConnection.java:1744)
at net.sourceforge.jtds.jdbc.JtdsConnection.prepareStatement(JtdsConnection.java:2448)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:146)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
… 71 more
[sistel-web] 17/01/2016 11:38:23 [WARN]: SQL Error: 0, SQLState: HY010
[sistel-web] 17/01/2016 11:38:23 [ERROR]: Invalid state, the Connection object is closed.

Isso ta cheirando a tempo de sessão do teu pool de conexões.
Da uma pesquisada por tempo de inatividade…
Abs