type Exception report
message org.hibernate.exception.GenericJDBCException: Cannot open connection
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: org.hibernate.exception.GenericJDBCException: Cannot open connection org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:555) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)
root cause
org.hibernate.exception.GenericJDBCException: Cannot open connection org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52) org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449) org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161) org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577) org.hibernate.loader.Loader.doQuery(Loader.java:696) org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) org.hibernate.loader.Loader.loadEntity(Loader.java:1885) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:71) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:65) org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3062) org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:434) org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:415) org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:165) org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:223) org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:126) org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:906) org.hibernate.impl.SessionImpl.get(SessionImpl.java:843) com.srsoft.column.data.SrColumnDAO.findById(SrColumnDAO.java:78) org.apache.jsp.food.list_jsp._jspService(list_jsp.java:135) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)
root cause
java.sql.SQLException: Connections could not be acquired from the underlying database! com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:352) com.mchange.v2.c3p0.PoolBackedDataSource.getConnection(PoolBackedDataSource.java:120) org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:78) org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161) org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577) org.hibernate.loader.Loader.doQuery(Loader.java:696) org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) org.hibernate.loader.Loader.loadEntity(Loader.java:1885) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:71) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:65) org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3062) org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:434) org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:415) org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:165) org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:223) org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:126) org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:906) org.hibernate.impl.SessionImpl.get(SessionImpl.java:843) com.srsoft.column.data.SrColumnDAO.findById(SrColumnDAO.java:78) org.apache.jsp.food.list_jsp._jspService(list_jsp.java:135) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)
root cause
com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source. com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1002) com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:293) com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:348) com.mchange.v2.c3p0.PoolBackedDataSource.getConnection(PoolBackedDataSource.java:120) org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:78) org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161) org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1577) org.hibernate.loader.Loader.doQuery(Loader.java:696) org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) org.hibernate.loader.Loader.loadEntity(Loader.java:1885) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:71) org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:65) org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3062) org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:434) org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:415) org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:165) org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:223) org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:126) org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:906) org.hibernate.impl.SessionImpl.get(SessionImpl.java:843) com.srsoft.column.data.SrColumnDAO.findById(SrColumnDAO.java:78) org.apache.jsp.food.list_jsp._jspService(list_jsp.java:135) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) com.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:36)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.23 logs.