Thu, 10 Oct 2013 14:58:04 +0200
8001931: The new build system whitespace cleanup
Reviewed-by: tbell, simonis, erikj
1 /*
2 * Copyright (c) 2006, 2011, 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
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22 */
24 /**
25 * @test
26 * @bug 6330997 7025789
27 * @summary javac should accept class files with major version of the next release
28 * @author Wei Tao
29 * @clean T1 T2
30 * @compile -target 8 T1.java
31 * @compile -target 8 T2.java
32 * @run main/othervm T6330997
33 */
35 import java.nio.*;
36 import java.io.*;
37 import java.nio.channels.*;
38 import com.sun.tools.javac.api.JavacTaskImpl;
39 import com.sun.tools.javac.jvm.ClassReader.BadClassFile;
40 import com.sun.tools.javac.main.JavaCompiler;
41 import javax.tools.ToolProvider;
43 public class T6330997 {
44 public static void main(String... args) {
45 increaseMajor("T1.class", 1);
46 increaseMajor("T2.class", 2);
47 javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
48 JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null);
49 JavaCompiler compiler = JavaCompiler.instance(task.getContext());
50 try {
51 compiler.resolveIdent("T1").complete();
52 } catch (Exception e) {
53 e.printStackTrace();
54 throw new RuntimeException("Failed: unexpected exception while reading class T1");
55 }
56 try {
57 compiler.resolveIdent("T2").complete();
58 } catch (BadClassFile e) {
59 System.err.println("Passed: expected completion failure " + e.getClass().getName());
60 return;
61 } catch (Exception e) {
62 e.printStackTrace();
63 throw new RuntimeException("Failed: unexpected exception while reading class T2");
64 }
65 throw new RuntimeException("Failed: no error reported");
66 }
68 // Increase class file cfile's major version by delta
69 static void increaseMajor(String cfile, int delta) {
70 try {
71 RandomAccessFile cls = new RandomAccessFile(
72 new File(System.getProperty("test.classes", "."), cfile), "rw");
73 FileChannel fc = cls.getChannel();
74 ByteBuffer rbuf = ByteBuffer.allocate(2);
75 fc.read(rbuf, 6);
76 ByteBuffer wbuf = ByteBuffer.allocate(2);
77 wbuf.putShort(0, (short)(rbuf.getShort(0) + delta));
78 fc.write(wbuf, 6);
79 fc.force(false);
80 cls.close();
81 } catch (Exception e){
82 e.printStackTrace();
83 throw new RuntimeException("Failed: unexpected exception");
84 }
85 }
86 }