}
}
@Test
public void test_getDefault() throws Exception {
SimpleExt ext = ExtensionLoader.getExtensionLoader(SimpleExt.class).getDefaultExtension();
assertThat(ext, instanceOf(SimpleExtImpl1.class));
String name = ExtensionLoader.getExtensionLoader(SimpleExt.class).getDefaultExtensionName();
assertEquals("impl1", name);
}