hibernate query returns only first character of string

When I run a query like this in oracle 10g using sqldeveloper, it runs fine.

selec开发者_开发百科t 'Canada' as "country", emp.name as "name" from emp.

Gives me the name and country. When I run it in hibernate as a named query, I get only 'C' instead of 'Canada' for "country".

Why is this so?

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select cast('Canada' as varchar2(100)) as "country", emp.name as "name" from emp