| /* |
| * Copyright (c) 2007, 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 nsk.share.classload; |
| |
| import java.io.*; |
| import java.util.*; |
| |
| import nsk.share.FileUtils; |
| |
| /** |
| * Custom classloader that does not delegate to it's parent. |
| * |
| * It can load classes from classpath that have name containing |
| * "Class" (any package). |
| */ |
| public class ClassPathNonDelegatingClassLoader extends ClassLoader { |
| private String [] classPath; |
| |
| public ClassPathNonDelegatingClassLoader() { |
| classPath = System.getProperty("java.class.path").split(File.pathSeparator); |
| } |
| |
| public synchronized Class loadClass(String name, boolean resolve) |
| throws ClassNotFoundException { |
| Class c = findLoadedClass(name); |
| if (c != null) { |
| System.out.println("Found class: " + name); |
| return c; |
| } |
| if (name.contains("Class")) { |
| String newName = name.replace('.', '/'); |
| return loadClassFromFile(name, newName + ".class", resolve); |
| } else { |
| return findSystemClass(name); |
| } |
| } |
| |
| private Class loadClassFromFile(String name, String fname, boolean resolve) |
| throws ClassNotFoundException { |
| try { |
| File target = new File(""); |
| |
| for(int i = 0; i < classPath.length; ++i) { |
| target = new File(classPath[i] + File.separator + fname); |
| if (target.exists()) |
| break; |
| } |
| if (!target.exists()) |
| throw new java.io.FileNotFoundException(); |
| byte[] buffer = FileUtils.readFile(target); |
| Class c = defineClass(name, buffer, 0, buffer.length); |
| if (resolve) |
| resolveClass(c); |
| return c; |
| } catch (IOException e) { |
| throw new ClassNotFoundException("Exception while reading classfile data", e); |
| } |
| } |
| } |