ConfigurationProvider { public static ConfigurationBuilder getConfigurationBuilder() { return spi().getConfigurationBuilder(); } private  ConfigurationProvider(); static Configuration getConfiguration(); static Configuration getConfiguration(ClassLoader classLoader); static Configuration createConfiguration(ConfigurationContext context); static void setConfiguration(Configuration config); static void setConfiguration(Configuration config, ClassLoader classLoader); static ConfigurationBuilder getConfigurationBuilder();  }
@Test public void testGetConfigurationBuilder() { ConfigurationBuilder result = ConfigurationProvider.getConfigurationBuilder(); assertThat(result instanceof ConfigurationBuilder).isTrue(); }