public TableRetryPolicy withJitter(Duration jitter) {
    Preconditions.checkNotNull(jitter);
    if (backoffType != BackoffType.RANDOM) {
      this.jitter = jitter;
    }
    return this;
  }
Set the jitter for the backoff policy to provide additional randomness.
If this is set, a random value between {@code [0, jitter]} will be added
to each sleepTime time. This applies to {@code FIXED} and {@code EXPONENTIAL}
modes only.
@param jitter initial sleepTime time
@return this policy instance
samza-api/src/main/java/org/apache/samza/table/retry/TableRetryPolicy.java