67 lines
2.6 KiB
Java
67 lines
2.6 KiB
Java
/*
|
|
* 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");
|
|
}
|
|
}
|