Use quoted schema in an insert statement executed thorough PreparedStatement in Java

I created an unquoted table my_table under a quoted schema "Quoted_User". When executing the statement INSERT INTO "Quoted_User".my_table (custom_id) VALUES (DEFAULT) using the Intellij Oracle browser it works, but when I'm performing the same statement through a PreparedStatement in Java Oracle is complaining that the schema is not existing. Here's the prepared statement Java line: statement = connection.prepareStatement(insertSQL, new String[]{custom_id}); and here is insertSQL as shown in the inspector: INSERT INTO \"Quoted_User\".my_table (custom_id) VALUES (DEFAULT) It's like Oracle is removing the quotes, and I can say this because I noticed the uppercase letters in the error message which are always returned when the object is considered to be case insensitive. Error returned by Oracle: java.sql.SQLSyntaxErrorException: ORA-04043: object "QUOTED_USER" does not exist There should be a way to use quoted schema names with prepared statements I guess. Thanks for your hints, Mattia