Have a common base type for all my custom annotations

So, I have created several custom annotations:

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Foo {

}

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Bar {

}

Those annotations are used in my functions:

public class Worker {

   @Foo
   public void doTaskOne() {...}

   @Bar
   public void doTaskX() {...}

   ...
}

I want to use java reflection to check if certain annotation is declared in one method.

for (Method m : methods) {
      if (m.isAnnotationPresent(Foo.class)) {
        ...
      } else if (m.isAnnotationPresent(Bar.class)) {
        ...
      }
}

The problem is that since in Java, custom annotation @interface is not able to be extended. I mean this is illegal:

public @interface Bar extends MyBaseAnnotation{
}

That's I am not able to have a base @interface for all my custom annotation class Foo and Bar. So, if I have a new custom annotation created, I need to add more else if condition in above method checking code, which sucks! Is there anyway to get rid of this problem? What I want to achieve is to generalize my method checking code to :

for (Method m : methods) {
     if (m.isAnnotationPresent(MyBaseAnnotation.class)) {
         ...
     }
}

How to achieve it?