Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection

• at java.net.PlainSocketImpl.socketConnect(Native Method)
• at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476)
• at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218)
• at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200)
• at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
• at java.net.Socket.connect(Socket.java:606)
• at org.postgresql.core.PGStream.<init>(PGStream.java:69)
• at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:158)
• at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
• at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:195)
• at org.postgresql.Driver.makeConnection(Driver.java:452)
• at org.postgresql.Driver.connect(Driver.java:254)
• at java.sql.DriverManager.getConnection(DriverManager.java:664)
• at java.sql.DriverManager.getConnection(DriverManager.java:247)
• at org.postgresql.ds.common.BaseDataSource.getConnection(BaseDataSource.java:94)
• at org.postgresql.ds.common.BaseDataSource.getConnection(BaseDataSource.java:79)
• at org.postgresql.ds.PGConnectionPoolDataSource.getPooledConnection(PGConnectionPoolDataSource.java:58)
• at org.postgresql.ds.PGPoolingDataSource.getPooledConnection(PGPoolingDataSource.java:381)
• at org.postgresql.ds.PGPoolingDataSource.getConnection(PGPoolingDataSource.java:326)
• at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:85)
• at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
• at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
• at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)
• at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)
• at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)
• at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:560)
• at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
• at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427)
• at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276)
• at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
• at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
• at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
• at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
• at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)
• at com.bsj.base.dao.SystemConfigDao$$EnhancerBySpringCGLIB$$14ad25c0.loadSystemConfig(<generated>)
• at com.bsj.base.web.admin.SysController.LoginHandler(SysController.java:204)
• at sun.reflect.GeneratedMethodAccessor2850.invoke(Unknown Source)
• at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
• at java.lang.reflect.Method.invoke(Method.java:498)
• at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
• at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
• at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
• at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:817)
• at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:731)
• 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:968)
• at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:859)
• at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
• at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844)
• at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
• at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
• at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
• at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
• at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
• at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
• at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
• at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
• at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
• at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
• at com.bstek.dorado.web.filter.DelegatingFilterChain.doFilter(DelegatingFilterChain.java:97)
• at com.bstek.dorado.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:119)
• at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
• at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
• at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:208)
• at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
• at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
• at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
• at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
• at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
• at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
• at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
• at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
• at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
• at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
• at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
• at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
• at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
• at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
• at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
• at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
• at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
• at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
• at java.lang.Thread.run(Thread.java:748)