@Async working without @EnableAsync in springboot

Question

I'm writing tests for my Async method, annotated with @Async. I'm trying to disable Async by using below configuration class:

@Profile("!integ-test")
@Configuration
@EnableAsync
public class AsyncConfiguration {}

Calling code:

@Autowired private ApiDelegate apiDelegate;

apiDelegate.exportResources(searchContext);

Method:

 @Async
 public void exportResources(
  SearchContext searchContext,
  ) {}

Spring boot version: 2.3.12.RELEASE

The problem is the method is still being executed asynchronously. There is no place else where @EnableAsync is placed. I've also tried removing @EnableAsync altogether, but the method remains asynchronous. There seems to be no effect of removing @EnableAsync. Please help. Thanks.