Android : Java: how to specific "forEach" action type

This is my test code, i use intellij idea:

package ro.ex;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.function.Consumer;

class Ex {
    static class MyArrayList<E> extends ArrayList {
        public MyArrayList(Collection c) {
            super(c);
        }

        @Override
        public void forEach(Consumer action) {
            super.forEach(action);
        }
    }

    public static void main(String[] args) throws IOException {
        MyArrayList<String> a = new MyArrayList<String>(Arrays.asList("arg", "arg2"));
        for (String e : a) {

        }
    }

}

and idea raise "Error:(23, 25) java: incompatible types: java.lang.Object cannot be converted to java.lang.String"

i also try ArrayList

public static void main(String[] args) throws IOException {
    ArrayList<String> a = new ArrayList<String>(Arrays.asList("arg", "arg2"));
    for (String e : a) {

    }
}

everything work well.

my question is:

How to make former code pass idea syntax checker?