@Test
public void testGetExtensionAdditionalDetailsWhenPresent() {

    final ExtensionAdditionalDetailsEntity entity = metadataService.getExtensionAdditionalDetails("eb2-v1", "org.apache.nifi.ExampleService");
    assertNotNull(entity);
    assertEquals("e3", entity.getExtensionId());
    assertTrue(entity.getAdditionalDetails().isPresent());
}