/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package test;

import java.util.*;

import java.io.*;

public class IAE_Loader1 extends ClassLoader {

    private final Set<String> names = new HashSet<>();

    public IAE_Loader1(String name, String[] names) {

        super(name, ClassLoader.getSystemClassLoader());

        for (String n : names) this.names.add(n);

    }

    protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {

        if (!names.contains(name)) {

            return super.loadClass(name, resolve);

        }

        String filename = name.replace('.', '/') + ".class";

        Class<?> result = null;

        try (InputStream data = getResourceAsStream(filename)) {

            if (data == null) {

                throw new ClassNotFoundException();

            }

            try (ByteArrayOutputStream buffer = new ByteArrayOutputStream()) {

                byte[] bytes = data.readAllBytes();

                result = defineClass(name, bytes, 0, bytes.length);

            }

        } catch (IOException e) {

            throw new ClassNotFoundException("Error reading class file", e);

        }

        if (resolve) resolveClass(result);

        return result;

    }

}