Map<String, String> commonOAuthParameters(String consumerKey) {
   Map<String, String> oauthParameters = new HashMap<String, String>();
   oauthParameters.put("oauth_consumer_key", consumerKey);
   oauthParameters.put("oauth_signature_method", HMAC_SHA1_SIGNATURE_NAME);
   long timestamp = timestampGenerator.generateTimestamp();
   oauthParameters.put("oauth_timestamp", Long.toString(timestamp));
   oauthParameters.put("oauth_nonce", Long.toString(timestampGenerator.generateNonce(timestamp)));
   oauthParameters.put("oauth_version", "1.0");
   return oauthParameters;
 }
 @Test
 public void testTimestamp() {
   TimestampGenerator generator = new TimestampGenerator();
   long last = generator.getTimestamp();
   long start = last;
   long startms = System.currentTimeMillis();
   System.out.println(last);
   for (int i = 0; i < 100000; i++) {
     long timestamp = generator.getTimestamp();
     assertTrue(timestamp > last);
     last = timestamp;
   }
   System.out.println(generator.getTimestamp() - start);
   System.out.println(System.currentTimeMillis() - startms);
 }