Wrapper.java revision 3014:a3dd196e5341 
1/*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24import java.io.File;
25import java.lang.reflect.Method;
26import java.util.Arrays;
27
28
29public class Wrapper {
30    public static void main(String... args) throws Exception {
31        if (!isSJavacOnClassPath()) {
32            System.out.println("sjavac not available: pass by default");
33            return;
34        }
35
36        String testClassName = args[0];
37        String[] testArgs = Arrays.copyOfRange(args, 1, args.length);
38
39        File srcDir = new File(System.getProperty("test.src"));
40        File clsDir = new File(System.getProperty("test.classes"));
41
42        File src = new File(srcDir, testClassName + ".java");
43        File cls = new File(clsDir, testClassName + ".class");
44
45        if (cls.lastModified() < src.lastModified()) {
46            System.err.println("Recompiling test class...");
47            String[] javacArgs = { "-d", clsDir.getPath(), src.getPath() };
48            int rc = com.sun.tools.javac.Main.compile(javacArgs);
49            if (rc != 0)
50                throw new Exception("compilation failed");
51        }
52
53        Class<?> sjavac = Class.forName(testClassName);
54        Method main = sjavac.getMethod("main", String[].class);
55        main.invoke(null, new Object[] { testArgs });
56    }
57
58    private static boolean isSJavacOnClassPath() {
59        String cls = "com/sun/tools/sjavac/Main.class";
60        return Wrapper.class.getClassLoader().getResource(cls) != null;
61    }
62}
63