/**
  * Failure test case for checkNull.The argument is null so <code>IllegalArgumentException</code>
  * should be thrown.
  */
 @Test(expected = IllegalArgumentException.class)
 public void testCheckNullWithLoggingFailure() {
   Helper.checkNullWithLogging(null, "obj", "method", LogManager.getLog());
 }
 /**
  * Accuracy test case for checkNull.The argument is not null so <code>IllegalArgumentException
  * </code> should not be thrown.
  */
 @Test
 public void testCheckNullWithLogging() {
   Helper.checkNullWithLogging("obj", "obj", "method", LogManager.getLog());
 }