presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/util/PrioritizedFifoExecutor.java/FifoRunnableTask/equals
class FifoRunnableTask:        @Override
        public boolean equals(Object o)
        {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }

            FifoRunnableTask<?> other = (FifoRunnableTask<?>) o;
            return Objects.equals(this.task, other.task) &&
                    Objects.equals(this.sequenceNumber, other.sequenceNumber);
        }