### Question:
QueueConfig extends SerializableBase { public boolean updateRetryCount(int newRetryCount) { if (this.numRetry != newRetryCount) { this.numRetry = newRetryCount; return true; } return false; }  void updateTime(); boolean updateRetryCount(int newRetryCount); boolean addDeadLetterQueue(DeadLetterQueue deadLetterQueue); boolean updateVisibilityTimeout(long newTimeOut); boolean updateConcurrency(MinMax<Integer> concurrency); boolean updatePriorityGroup(String priorityGroup); boolean updatePriority(Map<String, Integer> newPriority); @JsonIgnore boolean isDeadLetterQueue(String name); @JsonIgnore boolean hasDeadLetterQueue();  }### Answer:
@Test public void updateRetryCount() { QueueConfig queueConfig = TestUtils.createQueueConfig("test"); assertTrue(queueConfig.updateRetryCount(100)); assertEquals(100, queueConfig.getNumRetry()); assertFalse(queueConfig.updateRetryCount(100)); }