pair lambda equality

    /**
     * Checks if everything except id's and results are equal!
     * An example of using the stream operator and a couple of gauva and apache
     * language extensions to implement an equality check. We create a pair for
     * each thing we want to compare then stream through and assert that
     * everything matches the equality test. We use the hash code in the
     * equality test as it's a little less finicky for equality tests. This is a
     * pretty expensive and heavy weight implementation, not because of the
     * functional stuff, but because of all the intermediary objects created. As
     * this is example code we don't sweat the efficiency. A simpler
     * Implementation would just use a big equality test.
     * Example disabled because of hibernate bug...
     * https://hibernate.atlassian.net/browse/HHH-9132
     * 
     * @param other
     * @return true if every element is equal
     */
    private boolean checkEquality(final Schedule other) {
        // Nifty fancy but expensive lambda Pair disabled because of hibernate
        // bug.
        // https://hibernate.atlassian.net/browse/HHH-9132

        //@formatter:off
        return Lists
            .newArrayList(Pair.of(callbackURI, other.callbackURI), 
                Pair.of(cronExpression, other.cronExpression),
                Pair.of(method, other.method), 
                Pair.of(scheduleType, other.scheduleType),
                Pair.of(executeAt, other.executeAt)).stream()
            .allMatch(pair -> hashIfNotNull(pair.getLeft()) == hashIfNotNull(pair.getRight()));
        //@formatter:on

    }