Minor improvements to the java tests

Author: Matthew Sackman

test/src/com/rabbitmq/client/test/functional/QueueLeaseExpires.java

@@ -128,25 +128,22 @@ public void testQueueRedeclareEquivalence() throws IOException {
 
     void verifyQueueExpires(String name, boolean expire) throws IOException,
             InterruptedException {
-        int interval = SHOULD_EXPIRE_WITHIN / 4;
-
         Map<String, Object> args = new HashMap<String, Object>();
         if (expire) {
             args.put("x-expires", QUEUE_EXPIRES);
         }
-        ;
 
         channel.queueDeclare(name, false, false, false, args);
 
-        Thread.sleep(interval);
+        Thread.sleep(SHOULD_EXPIRE_WITHIN / 4);
 
         try {
             channel.queueDeclarePassive(name);
         } catch (IOException e) {
             fail("Queue expired before deadline.");
         }
 
-        Thread.sleep(interval * 3);
+        Thread.sleep(SHOULD_EXPIRE_WITHIN); // be on the safe side
 
         try {
             channel.queueDeclarePassive(name);