@JsonProperty
    public long seed() {
        return seed;
    }
A PayloadGenerator which generates a uniform random payload.

This generator generates pseudo-random payloads that can be reproduced from run to run.
The guarantees are the same as those of java.util.Random.

This payload generator also has the option to append padding bytes at the end of the payload.
The padding bytes are always the same, no matter what the position is.  This is useful when
simulating a partly-compressible stream of user data.
trogdor/src/main/java/org/apache/kafka/trogdor/workload/UniformRandomPayloadGenerator.java