DelegatingSecurityContextAsyncTaskExecutor bootstrap that requires custom taskExecutor for some reason

AsyncTaskExecutorConfiguration.java

import org.springframework.boot.task.ThreadPoolTaskExecutorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.AsyncTaskExecutor;
import org.springframework.security.task.DelegatingSecurityContextAsyncTaskExecutor;

@Configuration
public class AsyncTaskExecutorConfiguration {

    /**
     * Have to define custom ThreadPoolTaskExecutor bean to be used by DelegatingSecurityContextAsyncTaskExecutor to
     * work around for error creating bean with name 'delegatingSecurityContextAsyncTaskExecutor': Requested bean is currently in creation:
     * Is there an unresolvable circular reference or an asynchronous initialization dependency?
     * Using ThreadPoolTaskExecutorBuilder to get the default configuration.
     */
    @Bean
    public AsyncTaskExecutor taskExecutor(ThreadPoolTaskExecutorBuilder builder) {

        return builder.build();
    }

    /**
     * Spring SecurityContext is bound to a ThreadLocal, and is not available in @Async methods, which run in separate threads.
     * To propagate the SecurityContext, Spring provides DelegatingSecurityContextAsyncTaskExecutor.
     */
    @Bean
    public DelegatingSecurityContextAsyncTaskExecutor delegatingSecurityContextAsyncTaskExecutor(AsyncTaskExecutor delegate) {

        return new DelegatingSecurityContextAsyncTaskExecutor(delegate);
    }
}

if @scheduled annotation is used then it works w/out custom taskExecutor.