SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the Mozilla Public License Version 2.0.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package net.multiphasicapps.collections;

import java.util.List;

/**
 * This contains some utilities for arrays.
 *
 * @since 2017/11/30
 */
public final class ArrayUtils
{
    /**
     * Not used.
     *
     * @since 2017/11/30
     */
    private ArrayUtils()
    {
    }
    
    /**
     * Returns an unmodifiable list over the given array.
     *
     * @param <T> The type of list to return.
     * @param __e The array to wrap.
     * @return The unmodifiable list.
     * @throws NullPointerException On null arguments.
     * @since 2017/11/30
     */
    @SuppressWarnings({"unchecked"})
    public static final <T> List<T> unmodifiableList(T... __e)
        throws NullPointerException
    {
        if (__e == null)
            throw new NullPointerException("NARG");
        
        return new UnmodifiableArrayList<T>(__e, 0, __e.length);
    }
}