"Errore DB:org.apache.torque.TorqueException: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.io.EOFException MESSAGE: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost. STACKTRACE: 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:1997) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2411) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2916) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723) at com.mysql.jdbc.Connection.execSQL(Connection.java:3277) at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:5442) at org.apache.commons.dbcp.cpdsadapter.ConnectionImpl.setAutoCommit(ConnectionImpl.java:325) at org.apache.commons.dbcp.datasources.SharedPoolDataSource.setupDefaults(SharedPoolDataSource.java:212) at org.apache.commons.dbcp.datasources.InstanceKeyDataSource.getConnection(InstanceKeyDataSource.java:654) at org.apache.commons.dbcp.datasources.InstanceKeyDataSource.getConnection(InstanceKeyDataSource.java:615) at org.apache.torque.TorqueInstance.getConnection(TorqueInstance.java:821) at org.apache.torque.Torque.getConnection(Torque.java:272) at org.apache.torque.util.Transaction.beginOptional(Transaction.java:80) at org.apache.torque.util.BasePeer.doSelect(BasePeer.java:699) at it.unibas.portaleagraria.modello.base.BaseCorsoPeer.doSelectVillageRecords(BaseCorsoPeer.java:368) at it.unibas.portaleagraria.modello.base.BaseCorsoPeer.doSelectVillageRecords(BaseCorsoPeer.java:340) at it.unibas.portaleagraria.modello.base.BaseCorsoPeer.doSelect(BaseCorsoPeer.java:309) at it.unibas.portaleagraria.controllo.AzionePaginaCorso.execute(AzionePaginaCorso.java:64) at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58) at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67) at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51) at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304) at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:723) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:748) ** END NESTED EXCEPTION ** Last packet sent to the server was 183 ms ago. ---> Insegnamenti: Id = 1 Nome = Analisi Chimiche e Biologia Molecolare Cfu = 6 Iddocente = 22 Cdl = specialistica Annoaccademico = primo Idcorso = 3 Testo = "