* @return the element type of the collection
     */
    public static Class<?> getElementTypeOfCollection(final Field field) {
        assertArgumentNotNull("field", field);

        final Type type = field.getGenericType();
        return GenericsUtil.getRawClass(GenericsUtil.getElementTypeOfCollection(type));
    }

    /**
     * Returns the key type of a parameterized map field.
     *

     * @return the generic type class, or null if not found
     */
    public static Type getGenericParameter(final java.lang.reflect.Field field, final int index) {
        return getGenericParameter(field.getGenericType(), index);
    }

    /**
     * Returns the generic type of the specified field for the given index, or the default class if not found.
     *
     * @param field the field to analyze