cstmt = conn.prepareCall("exec listarFluxo");
ResultSet rs = cstmt.executeQuery();
while(rs.next()){
FluxoDeCaixa c = new FluxoDeCaixa();
c.setCodigo(rs.getInt(1));
c.setContasPagarId(rs.getInt(2));
c.setContasReceberId(rs.getInt(3));;
c.setDataDeMovimentacao(rs.getDate(4));
c.setStatus(rs.getString(5));
c.setValorAtual(rs.getFloat(6));
lista.add(c);
}