SQL not ran by JDBC but perfectly functional in Database Clients - sql

Question

I have a query to select tree structure data from SQL Server 2012 to fetch tree structured resultset from one table.
This is the SQL I used:
with cte_child (id, parentId, contractId, contractName, jfCompany, jfDepartment, yfDepartment, totalAmount, signDate, lvl)
as
(
select
id, parentId, contractId, contractName,
jfCompany, jfDepartment, yfDepartment, totalAmount, signDate, 0
from
Contract_info_main
where
contractId = 'c2012-0412'
union all
select
c.id, c.parentId, c.contractId, c.contractName,
c.jfCompany, c.jfDepartment, c.yfDepartment, c.totalAmount,
c.signDate, s.lvl+1
from
Contract_info_main c
inner join
cte_child s on s.parentId = c.id
)
select * from cte_child
This SQL statement does run with correct result on local SQL Server 2012 database, as well as my local machine with DBeaver client. The driver used by DBeaver is "mssql-jdbc:7.4.1.jre8".
The weird thing is when I use pure Java code to send identical SQL string to send exactly same query, it fails with an error
object name 'Contract_inf_main' is invalid
Since I am using Ubuntu 18, I guess DLL along with Driver should not be a problem? but what could be possible cause of this problem? thanks
This is my JDBC code:
public static void main(String[] args) throws ClassNotFoundException, SQLException {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
final Connection connection = DriverManager.getConnection("jdbc:sqlserver://192.168.5.158:1433", "general_reader", "sqlserver2017#reader");
final String sql = "with cte_child(id, parentId, contractId, contractName, jfCompany, jfDepartment, yfDepartment, totalAmount, signDate, lvl) " +
"as (select id, parentId, contractId, contractName, jfCompany, jfDepartment, yfDepartment, totalAmount, signDate, 0 " +
"from Contract_info_main where contractId = 'jy2012-041' " +
"union all select c.id, c.parentId, c.contractId, c.contractName, c.jfCompany, c.jfDepartment, c.yfDepartment, c.totalAmount, c.signDate, s.lvl+1 " +
"from Contract_info_main c inner join cte_child s on s.parentId = c.id) select * from cte_child";
final PreparedStatement statement = connection.prepareStatement(sql);
System.out.println(sql);
final ResultSet resultSet = statement.executeQuery();
while(resultSet.next()) {
System.out.println("id = " + resultSet.getString(1) + " and parentId = " + resultSet.getString(2));
}
resultSet.close();
statement.close();
connection.close();
}