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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.sun.javafx;

import java.util.AbstractList;
import java.util.RandomAccess;

An unmodifiable array-based List implementation. This is essentially like the
package private UnmodifiableRandomAccessList of the JDK, and helps us to
avoid having to do a lot of conversion work when we want to pass an array
into an unmodifiable list implementation (otherwise we would have to create
a temporary list that is then passed to Collections.unmodifiableList).
/**
 * An unmodifiable array-based List implementation. This is essentially like the
 * package private UnmodifiableRandomAccessList of the JDK, and helps us to
 * avoid having to do a lot of conversion work when we want to pass an array
 * into an unmodifiable list implementation (otherwise we would have to create
 * a temporary list that is then passed to Collections.unmodifiableList).
 */
public class UnmodifiableArrayList<T> extends AbstractList<T> implements RandomAccess {
    private T[] elements;
    private final int size;

    
The given elements are used directly (a defensive copy is not made),
and the given size is used as the size of this list. It is the callers
responsibility to make sure the size is accurate.
Params:
elements –    The elements to use.
size –        The size must be <= the length of the elements array/**
     * The given elements are used directly (a defensive copy is not made),
     * and the given size is used as the size of this list. It is the callers
     * responsibility to make sure the size is accurate.
     *
     * @param elements    The elements to use.
     * @param size        The size must be <= the length of the elements array
     */
    public UnmodifiableArrayList(T[] elements, int size) {
        assert elements == null ? size == 0 : size <= elements.length;
        this.size = size;
        this.elements = elements;
    }

    @Override public T get(int index) {
        return elements[index];
    }

    @Override public int size() {
        return size;
    }
}