private static boolean keyEq(Object keyA, Object keyB){
        return keyA.hashCode() == keyB.hashCode() ? (keyA == keyB) || keyA.equals(keyB) : false;
    }
Implementation of a Map that favors iteration speed rather than
get/put speed.

@author Kirill Vainer
jme3-core/src/main/java/com/jme3/util/ListMap.java