Null column values - bug

[Anil]

HI ,

null values are returned as "null" with ignite jdbc result set.

 private <T> T getTypedValue(int colIdx, Class<T> cls) throws SQLException {
        ensureNotClosed();
        ensureHasCurrentRow();

        try {
            T val = cls == String.class ? (T)String.valueOf(curr.get(colIdx
- 1)) : (T)curr.get(colIdx - 1);

            wasNull = val == null;

            return val;
        }
        catch (IndexOutOfBoundsException ignored) {
            throw new SQLException("Invalid column index: " + colIdx);
        }
        catch (ClassCastException ignored) {
            throw new SQLException("Value is an not instance of " +
cls.getName());
        }
    }


if a column value is null (curr.get(colIdx - 1) return null but
String.valueOf( (curr.get(colIdx - 1) ) is not null it is "null".

ArrayList<String> obj = new ArrayList<String>();
                          obj.add(null);
System.out.println(null == (String)String.valueOf(obj.get(0)));

above Sysout is false.

Fix :

Object colValue = curr.get(colIdx - 1);

T val = cls == String.class ? (String) colValue : (T) colValue;

or return (T) colValue


please let me know if you see any issues. thanks