从指定包中的JarFile获取所有Class文件，并扩展特定Class

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/*

 * This file is part of VIUtils.

 *

 * Copyright ? 2012-2015 Visual Illusions Entertainment

 *

 * VIUtils is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License,

 * or (at your option) any later version.

 *

 * This library 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 Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along with this library.

 * If not, see http://www.gnu.org/licenses/lgpl.html.

 */

import java.io.IOException;

import java.io.InputStream;

import java.net.URISyntaxException;

import java.security.CodeSource;

import java.security.cert.Certificate;

import java.util.ArrayList;

import java.util.Enumeration;

import java.util.jar.JarEntry;

import java.util.jar.JarFile;

import java.util.jar.Manifest;


public class Main{

    /**

     * Gets all {@link Class} files from a {@link JarFile} in a specified package and extends a specific {@link Class}

     *

     * @param jarFile

     *         the {@link JarFile} to get classes from

     * @param packageName

     *         the name of the package to get classes from

     * @param sCls

     *         the super {@link Class} to check extension of

     *

     * @return {@link Class} array

     *

     * @throws java.lang.ClassNotFoundException

     *         if the jar doesn't appear on the class-path and subsequently unable to load/find classes

     * @throws java.lang.NullPointerException

     *         if {@code jarFile} or {@code packageName} or {@code sCls} is null

     * @throws java.lang.IllegalArgumentException

     *         if {@code packageName} is empty

     */// from n o w j a v a . c o m - 时代Java

    @SuppressWarnings({ "unchecked" })

    public static <T> Class<? extends T>[] getClassesInPackageExtending(

            JarFile jarFile, String packageName, Class<T> sCls)

            throws ClassNotFoundException {



        ArrayList<Class<? extends T>> classes = new ArrayList<Class<? extends T>>();

        Enumeration<JarEntry> entries = jarFile.entries();

        while (entries.hasMoreElements()) {

            JarEntry entry = entries.nextElement();

            String entName = entry.getName().replace("/",