}
        assertEquals(1, testListener.startCount);
        assertEquals(5, testListener.requestCount);
        assertEquals(5, testListener.exceptionCount);
        assertEquals(1, testListener.endCount);
        assertEquals(url, testListener.requestUrl);
        assertEquals(Constants.GET_METHOD, testListener.requestMethod);
        assertEquals(url, testListener.exceptionUrl);
        assertEquals(5, testClient.count);

  }

  public void testRemovalListener_setTwice() {
    RemovalListener<Object, Object> testListener = nullRemovalListener();
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().removalListener(testListener);
    assertThrows(IllegalStateException.class, () -> builder.removalListener(testListener));
  }

  public void testValuesIsNotASet() {