org.hibernate.exception.GenericJDBCException: Cannot open connection
	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:82)
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:70)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)
	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:301)
	at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:110)
	at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:137)
	at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:49)
	at org.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:24)
	at org.hibernate.jdbc.JDBCContext.beginTransaction(JDBCContext.java:271)
	at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1079)
	at de.zent.tm.pers.dao.HbTxnContext.<init>(HbTxnContext.java:30)
	at de.zent.tm.pers.dao.HbTxnContext.<init>(HbTxnContext.java:20)
	at de.zent.tm.pers.delegate.TxnBoundedServiceCommand.<init>(TxnBoundedServiceCommand.java:11)
	at de.zent.tm.teservice.squad.SquadLogicCommand.<init>(SquadLogicCommand.java:45)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGOIntern(SquadLogic.java:106)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGO(SquadLogic.java:89)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGO(SquadLogic.java:83)
	at de.zent.tm.teservice.logic.TeServiceImpl.getSquadGO(TeServiceImpl.java:1807)
	at de.zent.tm.teservice.logic.TeServiceImpl.getSquadSummaryGO(TeServiceImpl.java:1814)
	at de.zent.tm.teservice.server.TeServiceRemoteImpl.getSquadSummaryGO(TeServiceRemoteImpl.java:496)
	at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:835)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:283)
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:260)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161)
	at de.zent.tm.teservice.server.TeServiceRemoteImpl_Stub.getSquadSummaryGO(Unknown Source)
	at de.zent.tm.teservice.client.TeServiceRemoteWrapper.getSquadSummaryGO(TeServiceRemoteWrapper.java:721)
	at de.zent.tm.teservice.client.TeServiceGate.getSquadSummaryGO(TeServiceGate.java:941)
	at de.zent.tm.web.athlete.SquadSummeryCommand.execute(SquadSummeryCommand.java:33)
	at de.zent.web.FrontController.processRequest(FrontController.java:120)
	at de.zent.web.FrontController.doGet(FrontController.java:189)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at de.zent.tm.web.TutorialFilter.doFilter(TutorialFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at de.zent.tm.web.PermissionCheckFilter.doFilter(PermissionCheckFilter.java:65)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at de.zent.tm.web.BaseFilter.doFilter(BaseFilter.java:35)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$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)
Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!
	at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106)
	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:529)
	at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
	at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:35)
	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:298)
	at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:110)
	at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:137)
	at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:49)
	at org.hibernate.transaction.JDBCTransactionFactory.beginTransaction(JDBCTransactionFactory.java:24)
	at org.hibernate.jdbc.JDBCContext.beginTransaction(JDBCContext.java:271)
	at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1079)
	at de.zent.tm.pers.dao.HbTxnContext.<init>(HbTxnContext.java:30)
	at de.zent.tm.pers.dao.HbTxnContext.<init>(HbTxnContext.java:20)
	at de.zent.tm.pers.delegate.TxnBoundedServiceCommand.<init>(TxnBoundedServiceCommand.java:11)
	at de.zent.tm.teservice.squad.SquadLogicCommand.<init>(SquadLogicCommand.java:45)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGOIntern(SquadLogic.java:106)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGO(SquadLogic.java:89)
	at de.zent.tm.teservice.squad.SquadLogic.getSquadGO(SquadLogic.java:83)
	at de.zent.tm.teservice.logic.TeServiceImpl.getSquadGO(TeServiceImpl.java:1807)
	at de.zent.tm.teservice.logic.TeServiceImpl.getSquadSummaryGO(TeServiceImpl.java:1814)
	at de.zent.tm.teservice.server.TeServiceRemoteImpl.getSquadSummaryGO(TeServiceRemoteImpl.java:496)
	at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:835)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	... 1 more
Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.
	at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1319)
	at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)
	at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)
	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)
	... 35 more