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java.sql.SQLException: Connections could not be acquired from the underlying database!	at com.mchange.v2.sql.SqlUtils.toSQLException(	at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(	at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(	at org.hibernate.connection.C3P0ConnectionProvider.getConnection(	at org.hibernate.jdbc.ConnectionManager.openConnection(