Rostislav Krasny created MATH-1300:
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Summary: BitsStreamGenerator#nextBytes(byte[]) is wrong
Key: MATH-1300
URL: https://issues.apache.org/jira/browse/MATH-1300
Project: Commons Math
Issue Type: Bug
Affects Versions: 3.5
Reporter: Rostislav Krasny
Sequential calls to the BitsStreamGenerator#nextBytes(byte[]) must generate the
same sequence of bytes, no matter by chunks of which size it was divided. This
is also how java.util.Random#nextBytes(byte[]) works.
When nextBytes(byte[]) is called with a bytes array of length multiple of 4 it
makes one unneeded call to next(int) method. This is wrong and produces an
inconsistent behavior of classes like MersenneTwister.
I made a new implementation of the BitsStreamGenerator#nextBytes(byte[]) see
attached code.
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