Fix Import does not do anything if there is nothing to be imported. If
there are some imports missing, Fix Imports add them, if there are
some unused imports, Fix Imports removes them. That's it. Does this
not work for you? What exactly does not work? Could you please provide
exact (step-by-step) instructions on how to reproduce your problem?

The previous Import management tool ordered the import.
You could choose if you want all import, all fully qualified names 
and other.

Now You can only add or remove import:

If you 
create a java application project
create a class that extends Hashtable(for example)
and override the metod element()
you will see that the signature is :
 public java.util.Enumeration elements() {

The Enumeration have a fully qualified name but I want that all 
classes must be the import in head to the class
ie:
import java.util.Hashtable;
import java.util.Enumeration;
public class Test extends Hashtable{
    
    /** Creates a new instance of Test */
    public Test() {
    }

    public Enumeration elements() {

        java.util.Enumeration retValue;
        
        retValue = super.elements();
        return retValue;
    }
    
}

With the previuos IMT the import was ordered.

OK, I see what you mean. This is as designed. The fix imports
functionality will be improved in the next release.

*** This issue has been marked as a duplicate of 47599 ***