Re: RFR 9: 8133022: Instant.toEpochMilli() silently overflows

[Roger Riggs]

Hi,

Please review the update to include the additional case and fix.

http://cr.openjdk.java.net/~rriggs/webrev-overflow-8133022/

Thanks, Roger


On 8/6/2015 12:37 PM, Roger Riggs wrote:

Hi Ivan,

I looked at that but didn't find a reproducer.
I'll add that test case and respin.

Thanks, Roger


On 8/6/2015 12:34 PM, Ivan Gerasimov wrote:

Hi Roger!

There seems to be another numeric overflow possibility a the line# 1235, when 'seconds' is a large negative and 'nanos' is a small positive.

For example,
------------
        Instant inst = Instant.ofEpochSecond(-9223372036854776L, 1);
        System.out.println(inst.toEpochMilli());
------------
prints out 9223372036854775616.


Sincerely yours,
Ivan

On 06.08.2015 18:33, Roger Riggs wrote:

Please review a small fix and test for Instant.toEpochMilli ArithmeticOverflow.

Webrev:
   http://cr.openjdk.java.net/~rriggs/webrev-overflow-8133022/

Issue:
    https://bugs.openjdk.java.net/browse/JDK-8133022

Thanks, Roger