Setting java error Line [] for rendered postgres report

I am trying to insert Array of Strings into Postgres. I am getting an invalid Postgres type error.

public static void main(String[] args) throws SQLException {
    String[] skus = { "0514", "0414", "0314", "0214", "0114", "1213", "1113", "1013", "0913", "0813", "0713", "0613" };
    String sqlString = "Insert into dbo.Inventory_Metrics skus values(?)";
    Connection conn = DriverManager.getConnection(getPostgresConnUrl());
    PreparedStatement ps = conn.prepareStatement(sqlString);

    //THIS NEXT LINE THROWS AN ERROR

    ps.setObject(1, skus, java.sql.Types.NVARCHAR, skus.length);
    int status = ps.executeUpdate();
    ps.close();

    System.out.print(status);
}
public static String getPostgresConnUrl() {
    String database = "mycode";
    String userName = "xxxxxxxx";
    String password = "xxxxxxxx";
    return "jdbc:postgresql://192.168.0.50:5432/" + database + "?user=" + userName + "&password=" + password;

}