| /* |
| * Copyright 2006-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 6330997 |
| * @summary javac should accept class files with major version of the next release |
| * @author Wei Tao |
| * @clean T1 T2 |
| * @compile -target 7 T1.java |
| * @compile -target 7 T2.java |
| * @run main/othervm T6330997 |
| */ |
| |
| import java.nio.*; |
| import java.io.*; |
| import java.nio.channels.*; |
| import com.sun.tools.javac.api.JavacTaskImpl; |
| import com.sun.tools.javac.jvm.ClassReader.BadClassFile; |
| import com.sun.tools.javac.main.JavaCompiler; |
| import javax.tools.ToolProvider; |
| |
| public class T6330997 { |
| public static void main(String... args) { |
| increaseMajor("T1.class", 1); |
| increaseMajor("T2.class", 2); |
| javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler(); |
| JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null); |
| JavaCompiler compiler = JavaCompiler.instance(task.getContext()); |
| try { |
| compiler.resolveIdent("T1").complete(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| throw new RuntimeException("Failed: unexpected exception while reading class T1"); |
| } |
| try { |
| compiler.resolveIdent("T2").complete(); |
| } catch (BadClassFile e) { |
| System.err.println("Passed: expected completion failure " + e.getClass().getName()); |
| return; |
| } catch (Exception e) { |
| e.printStackTrace(); |
| throw new RuntimeException("Failed: unexpected exception while reading class T2"); |
| } |
| throw new RuntimeException("Failed: no error reported"); |
| } |
| |
| // Increase class file cfile's major version by delta |
| static void increaseMajor(String cfile, int delta) { |
| try { |
| RandomAccessFile cls = new RandomAccessFile( |
| new File(System.getProperty("test.classes", "."), cfile), "rw"); |
| FileChannel fc = cls.getChannel(); |
| ByteBuffer rbuf = ByteBuffer.allocate(2); |
| fc.read(rbuf, 6); |
| ByteBuffer wbuf = ByteBuffer.allocate(2); |
| wbuf.putShort(0, (short)(rbuf.getShort(0) + delta)); |
| fc.write(wbuf, 6); |
| fc.force(false); |
| cls.close(); |
| } catch (Exception e){ |
| e.printStackTrace(); |
| throw new RuntimeException("Failed: unexpected exception"); |
| } |
| } |
| } |