Java examples for Reflection:Jar
Gets all Class files from a JarFile
/*//from www. j a v a 2s. c o m * 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; import static net.visualillusionsent.utils.Verify.notEmpty; import static net.visualillusionsent.utils.Verify.notNull; public class Main{ /** * Gets all {@link Class} files from a {@link JarFile} * * @param jarFile * the {@link JarFile} to get classes from * * @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} is null */ public static Class[] getAllClasses(JarFile jarFile) throws ClassNotFoundException { notNull(jarFile, "JarFile jarFile"); ArrayList<Class<?>> classes = new ArrayList<Class<?>>(); Enumeration<JarEntry> entries = jarFile.entries(); while (entries.hasMoreElements()) { JarEntry entry = entries.nextElement(); String entName = entry.getName().replace("/", "."); if (entName.endsWith(".class")) { Class<?> cls = Class.forName(entName.substring(0, entName.length() - 6)); classes.add(cls); } } return classes.toArray(new Class[classes.size()]); } }