> Please review this PR which corrects an edge case bug for
> java.text.DecimalFormat that causes incorrect parsing results for strings
> with very large exponent values.
>
> When parsing values with large exponents, if the value of the exponent
> exceeds `Integer.MAX_VALUE`, the parsed value is equal to 0. If the value of
> the exponent exceeds `Long.MAX_VALUE`, the parsed value is equal to the
> mantissa. Both results are confusing and incorrect.
>
> For example,
>
>
> NumberFormat fmt = NumberFormat.getInstance(Locale.US);
> fmt.parse(".1E2147483648"); // returns 0.0
> fmt.parse(".1E9223372036854775808"); // returns 0.1
> // For comparison
> Double.parseDouble(".1E2147483648"); // returns Infinity
> Double.parseDouble(".1E9223372036854775808"); // returns Infinity
>
>
> After this change, both parse calls return `Double.POSITIVE_INFINITY` now.
Justin Lu has updated the pull request incrementally with two additional
commits since the last revision:
- change impl to support whitebox test
- adjust impl to increase accuracy when decimalAt/exponent value are both
around Integer.MAX/MIN
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/19075/files
- new: https://git.openjdk.org/jdk/pull/19075/files/2c167493..7fe44600
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=19075&range=05
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=19075&range=04-05
Stats: 90 lines in 2 files changed: 65 ins; 12 del; 13 mod
Patch: https://git.openjdk.org/jdk/pull/19075.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/19075/head:pull/19075
PR: https://git.openjdk.org/jdk/pull/19075
