Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/6330997/T6330997.java
test/tools/javac/6330997/T6330997.java
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| 1 /* | |
| 2 * Copyright 2006-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 */ | |
| 23 | |
| 24 /** | |
| 25 * @test | |
| 26 * @bug 6330997 | |
| 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 7 T1.java | |
| 31 * @compile -target 7 T2.java | |
| 32 * @run main/othervm T6330997 | |
| 33 */ | |
| 34 | |
| 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; | |
| 42 | |
| 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 } | |
| 67 | |
| 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 } |
