On Thu, 24 Feb 2022 14:47:50 GMT, Jim Laskey <jlas...@openjdk.org> wrote:

> Class: ./java.base/share/classes/jdk/internal/util/random/RandomSupport.java 
> Method: public static long[] convertSeedBytesToLongs(byte[] seed, int n, int 
> z) 
> 
> The method attempts to create an array of longs by consuming the input bytes 
> most significant bit first. New bytes are appended to the existing long using 
> the OR operator on the signed byte. Due to sign extension this will overwrite 
> all the existing bits from 63 to 8 if the next byte is negative.

This pull request has now been integrated.

Changeset: 5fab27e1
Author:    Jim Laskey <jlas...@openjdk.org>
URL:       
https://git.openjdk.java.net/jdk/commit/5fab27e1b8fdf2ea27cb3b349bd339a4a6ec828b
Stats:     72 lines in 2 files changed: 71 ins; 0 del; 1 mod

8282144: RandomSupport.convertSeedBytesToLongs sign extension overwrites 
previous bytes

Reviewed-by: bpb

-------------

PR: https://git.openjdk.java.net/jdk/pull/7614

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