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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:56)	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)