### Question:
ActiveMQActivationSpec implements MessageActivationSpec, Serializable { public String getSubscriptionDurability() { if (!isEmpty(subscriptionDurability)) { return subscriptionDurability; } return null; }  void validate(); boolean isValidUseRAManagedTransaction(List<String> errorMessages); boolean isValidNoLocal(List<String> errorMessages); boolean isValidMessageSelector(List<String> errorMessages); boolean isValidMaxSessions(List<String> errorMessages); boolean isValidMaxMessagesPerSessions(List<String> errorMessages); boolean isValidMaxMessagesPerBatch(List<String> errorMessages); boolean isValidEnableBatch(List<String> errorMessages); ResourceAdapter getResourceAdapter(); void setResourceAdapter(ResourceAdapter resourceAdapter); String getDestinationType(); void setDestinationType(String destinationType); String getPassword(); void setPassword(String password); String getUserName(); void setUserName(String userName); String getMessageSelector(); void setMessageSelector(String messageSelector); String getNoLocal(); void setNoLocal(String noLocal); String getAcknowledgeMode(); void setAcknowledgeMode(String acknowledgeMode); String getClientId(); void setClientId(String clientId); String getDestination(); void setDestination(String destination); String getSubscriptionDurability(); void setSubscriptionDurability(String subscriptionDurability); String getSubscriptionName(); void setSubscriptionName(String subscriptionName); boolean isValidSubscriptionName(List<String> errorMessages); boolean isValidClientId(List<String> errorMessages); boolean isDurableSubscription(); boolean isValidSubscriptionDurability(List<String> errorMessages); boolean isValidAcknowledgeMode(List<String> errorMessages); boolean isValidDestinationType(List<String> errorMessages); boolean isValidDestination(List<String> errorMessages); boolean isEmpty(String value); @Override String toString(); int getAcknowledgeModeForSession(); void setActiveMQDestination(ActiveMQDestination destination); ActiveMQDestination createDestination(); String getMaxMessagesPerSessions(); void setMaxMessagesPerSessions(String maxMessagesPerSessions); String getMaxSessions(); void setMaxSessions(String maxSessions); String getUseRAManagedTransaction(); void setUseRAManagedTransaction(String useRAManagedTransaction); int getMaxMessagesPerSessionsIntValue(); int getMaxSessionsIntValue(); boolean isUseRAManagedTransactionEnabled(); boolean getNoLocalBooleanValue(); String getEnableBatch(); void setEnableBatch(String enableBatch); boolean getEnableBatchBooleanValue(); int getMaxMessagesPerBatchIntValue(); String getMaxMessagesPerBatch(); void setMaxMessagesPerBatch(String maxMessagesPerBatch); double getBackOffMultiplier(); long getInitialRedeliveryDelay(); int getMaximumRedeliveries(); boolean isUseExponentialBackOff(); void setBackOffMultiplier(double backOffMultiplier); long getMaximumRedeliveryDelay(); void setMaximumRedeliveryDelay(long maximumRedeliveryDelay); void setInitialRedeliveryDelay(long initialRedeliveryDelay); void setMaximumRedeliveries(int maximumRedeliveries); void setUseExponentialBackOff(boolean useExponentialBackOff); RedeliveryPolicy redeliveryPolicy(); RedeliveryPolicy lazyCreateRedeliveryPolicy(); void setUseJndi(boolean useJndi); boolean isUseJndi(); String getTrustStore(); void setTrustStore(String trustStore); String getTrustStorePassword(); void setTrustStorePassword(String trustStorePassword); String getKeyStore(); void setKeyStore(String keyStore); String getKeyStorePassword(); void setKeyStorePassword(String keyStorePassword); String getKeyStoreKeyPassword(); void setKeyStoreKeyPassword(String keyStoreKeyPassword); static final String AUTO_ACKNOWLEDGE_MODE; static final String DUPS_OK_ACKNOWLEDGE_MODE; static final String DURABLE_SUBSCRIPTION; static final String NON_DURABLE_SUBSCRIPTION; static final int INVALID_ACKNOWLEDGE_MODE; }### Answer:
@Test(timeout = 60000) public void testDefaultSubscriptionDurabilitySetCorrectly() { assertEquals("Incorrect default value", ActiveMQActivationSpec.NON_DURABLE_SUBSCRIPTION, activationSpec.getSubscriptionDurability()); }