Wrapper.java revision 2734:b96d74fa60aa 
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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26import java.io.File;
27import java.lang.reflect.Method;
28import java.nio.file.InvalidPathException;
29import java.nio.file.Path;
30import java.nio.file.Paths;
31import java.util.Arrays;
32
33
34public class Wrapper {
35    public static void main(String... args) throws Exception {
36        if (!isSupplementaryCharactersSupported()) {
37            System.out.println("Unicode supplementary characters in filenames not supported: pass by default");
38            return;
39        }
40
41        String testClassName = args[0];
42        String[] testArgs = Arrays.copyOfRange(args, 1, args.length);
43
44        File srcDir = new File(System.getProperty("test.src"));
45        File clsDir = new File(System.getProperty("test.classes"));
46
47        File src = new File(srcDir, testClassName + ".java");
48        File cls = new File(clsDir, testClassName + ".class");
49
50        if (cls.lastModified() < src.lastModified()) {
51            System.err.println("Recompiling test class...");
52            String[] javacArgs = { "-d", clsDir.getPath(), src.getPath() };
53            int rc = com.sun.tools.javac.Main.compile(javacArgs);
54            if (rc != 0)
55                throw new Exception("compilation failed");
56        }
57
58        Class<?> mainClass = Class.forName(testClassName);
59        Method main = mainClass.getMethod("main", String[].class);
60        main.invoke(null, new Object[] { testArgs });
61    }
62
63    private static boolean isSupplementaryCharactersSupported() {
64        try {
65            String s = "p--\ud801\udc00--";
66            System.err.println("Trying: Paths.get(" + s + ")");
67            Path p1 = Paths.get(s);
68            System.err.println("Found: " + p1);
69            System.err.println("Trying: p1.resolve(" + s + ")");
70            Path p2 = p1.resolve(s);
71            System.err.println("Found: " + p2);
72            return p1.toString().equals(s) && p2.toString().equals(s + java.io.File.separator + s);
73        } catch (InvalidPathException e) {
74            System.err.println(e);
75            return false;
76        }
77    }
78}
79