### Question:
HttpCollectorClientProvider extends CollectorClientProvider { public static HttpCollectorClientProvider provider() { return INSTANCE; } HttpCollectorClientProvider(); static HttpCollectorClientProvider provider();  }### Answer:
@Test public void testProvide() { assertNotNull(HttpCollectorClientProvider.provider()); }
@Test public void testProvideBounded() { CollectorClientProvider provider = CollectorClientProvider.provider(null, null); assertNotNull(provider); assertEquals(HttpCollectorClientProvider.provider().getClass(), provider.getClass()); }