[DV] FORMAT functions return different results with java 8 and 11

Queries with format functions (FORMATBIGDECIMAL, FORMATDOUBLE ...) return different results for negative numbers.

Example:

SELECT FORMATBIGDECIMAL((99 - 10000000), '#,##0;###0-')

dv operator with java 8 return: -9,999,901
dv operator with java 11 return: 9,999,901-

asmigala@redhat.com found out that difference is in java versions:

        String pattern = "#,##0;###0-";
        BigDecimal num = new BigDecimal(99 - 10000000);

        NumberFormat format = new DecimalFormat(pattern);
        StringBuffer buf = new StringBuffer();

        Assertions.assertThat(format.format(num, buf, new FieldPosition(0))).startsWith("-");

The check passes on java 8 but fails on java 11.

The question is if the results difference is desirable or not. If not which result is correct.