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While executing page http://bestorg.eu/courses/list.jsp The problem is related to SQL: SQLstate: 08003 ErrorCode: 0 Message: No operations allowed after connection closed.Connection was implicitly closed due to underlying exception/error: ** BEGIN NESTED EXCEPTION ** com.mysql.jdbc.exceptions.jdbc4.CommunicationsException MESSAGE: Communications link failure The last packet successfully received from the server was 15,516,472 milliseconds ago. The last packet sent successfully to the server was 22 milliseconds ago. STACKTRACE: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 15,516,472 milliseconds ago. The last packet sent successfully to the server was 22 milliseconds ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:406) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3030) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2916) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3459) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1957) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2107) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2648) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2086) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2237) at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76) at org.makumba.db.makumba.sql.Query.execute(Query.java:120) at org.makumba.db.makumba.DBConnection.executeQuery(DBConnection.java:179) at org.makumba.db.makumba.DBConnectionWrapper.executeQuery(DBConnectionWrapper.java:85) at org.makumba.db.makumba.DBConnection.executeQuery(DBConnection.java:195) at org.eu.best.johnny.dao.SeasonDAO.getMainInfo(Unknown Source) at org.eu.best.activities.ActivityDAOImpl.generateActivityFromDbRecord(Unknown Source) at org.eu.best.activities.ActivityDAOImpl.separateActivitiesForCreation(Unknown Source) at org.eu.best.activities.ActivityDAOImpl.retrieveActivitiesBySeason(Unknown Source) at org.eu.best.website.CoursesLogic.checkAttributes(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.makumba.controller.Logic.doInit(Logic.java:671) at org.makumba.commons.attributes.RequestAttributes.<init>(RequestAttributes.java:145) at org.makumba.commons.attributes.RequestAttributes.<init>(RequestAttributes.java:128) at org.makumba.commons.attributes.RequestAttributes.getAttributes(RequestAttributes.java:82) at org.makumba.commons.attributes.AttributesControllerHandler.beforeFilter(AttributesControllerHandler.java:43) at org.makumba.controller.http.ControllerFilter.doFilter(ControllerFilter.java:100) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.ServletAttributeFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.SessionDomainFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.WelcomeFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.PageBufferSizeFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.UriRewriteFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.eu.best.tools.VHostFilter.doFilter(Unknown Source) 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:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:464) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:680) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1003) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622) at java.lang.Thread.run(http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Thread.html" title="java.lang.Thread">Thread.java:748) 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:2475) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2927) ... 62 more ** END NESTED EXCEPTION ** Refer to your SQL server's documentation for error explanation. Please check the configuration of your webapp and SQL server. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.Connection was implicitly closed due to underlying exception/error: ** BEGIN NESTED EXCEPTION ** com.mysql.jdbc.exceptions.jdbc4.CommunicationsException MESSAGE: Communications link failure The last packet successfully received from the server was 15,516,472 milliseconds ago. The last packet sent successfully to the server was 22 milliseconds ago. STACKTRACE: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 15,516,472 milliseconds ago. The last packet sent successfully to the server was 22 milliseconds ago.