| /* |
| * Copyright (c) 2004, 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. |
| */ |
| |
| /* |
| * Support routines to allow running `javac' or `jar' within the same JVM. |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.lang.reflect.*; |
| |
| class SameJVM { |
| |
| private static ClassLoader toolsClassLoader() { |
| File javaHome = new File(System.getProperty("java.home")); |
| File classesDir = new File(javaHome, "classes"); |
| File libDir = new File(javaHome.getParentFile(), "lib"); |
| File toolsJar = new File(libDir, "tools.jar"); |
| try { |
| return new URLClassLoader( |
| new URL[] {classesDir.toURL(), toolsJar.toURL()}); |
| } catch (MalformedURLException e) { throw new AssertionError(e); } |
| } |
| private static final ClassLoader cl = toolsClassLoader(); |
| |
| static void javac(String... args) throws Exception { |
| Class c = Class.forName("com.sun.tools.javac.Main", true, cl); |
| int status = (Integer) |
| c.getMethod("compile", new Class[] {String[].class}) |
| .invoke(c.newInstance(), new Object[] {args}); |
| if (status != 0) |
| throw new Exception("javac failed: status=" + status); |
| } |
| |
| static void jar(String... args) throws Exception { |
| Class c = Class.forName("sun.tools.jar.Main", true, cl); |
| Object instance = c.getConstructor( |
| new Class[] {PrintStream.class, PrintStream.class, String.class}) |
| .newInstance(System.out, System.err, "jar"); |
| boolean result = (Boolean) |
| c.getMethod("run", new Class[] {String[].class}) |
| .invoke(instance, new Object[] {args}); |
| if (! result) |
| throw new Exception("jar failed"); |
| } |
| } |