A DESCRIPTION OF THE PROBLEM :
When using javadoc with `--override-methods=summary`, then some changes to the signature of the overriding method are ignored and the method is listed under "Methods declared in".

Affected changes:
- Covariant return type: JDK-8219147
- @Documented annotation on method or its parameters
- Changed `throws` clause:
  - Added unchecked exception
  - Removed exceptions
- Changed parameter name (could be intended)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Create the javadoc for the classes below using `--override-methods=summary`.
2. Look at the doc for `Sub`

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The method `doSomething` is listed under "Method Detail" and the user sees the changes to its signature.
ACTUAL -
The method `doSomething` is listed under "Methods declared in"; the user does not see any of the changes to its signature.

---------- BEGIN SOURCE ----------
import java.lang.annotation.Documented;

@Documented
public @interface MyAnnotation { }

-----

public interface Parent {
    /**
     * Method
     * 
     * @param a arg
     * @return value
     * @throws Exception never
     */
    Parent doSomething(int a) throws Exception;
}

-----

public interface Sub extends Parent {
    /*
     * Changes:
     *  - Return type
     *  - Used @Documented annotation:
     *    - Method
     *    - Parameter
     *  - `throws` clause:
     *    - Not throwing `Exception`
     *    - Throwing `IllegalArgumentException`
     *  - Parameter name (could be intended that change is ignored)
     */
    @Override
    @MyAnnotation 
    Sub doSomething(@MyAnnotation int aNewName) throws IllegalArgumentException;
}
---------- END SOURCE ----------


It appears this also affects changes to the visibility: 
public class A { 
    /** 
     * Does something 
     */ 
    protected void doSomething() { } 
} 

public class B { 
    @Override 
    public void doSomething() { } 
} 

----- 

The documentation for B does not show "doSomething" under "Method Detail" so the user does not know it is public.