public void setSubscriptionDurability(String subscriptionDurability) {
        this.subscriptionDurability = subscriptionDurability;
    }
@Test(timeout = 60000)
    public void testSettingNonDurableSubscriptionDurability() {
        activationSpec.setSubscriptionDurability(ActiveMQActivationSpec.NON_DURABLE_SUBSCRIPTION);
        assertActivationSpecValid();
    }