aoqi@0: /*
aoqi@0:  * Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @test
aoqi@0:  * @bug     6330997 7025789
aoqi@0:  * @summary javac should accept class files with major version of the next release
aoqi@0:  * @author  Wei Tao
aoqi@0:  * @clean T1 T2
aoqi@0:  * @compile -target 8 T1.java
aoqi@0:  * @compile -target 8 T2.java
aoqi@0:  * @run main/othervm T6330997
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.nio.*;
aoqi@0: import java.io.*;
aoqi@0: import java.nio.channels.*;
aoqi@0: import com.sun.tools.javac.api.JavacTaskImpl;
aoqi@0: import com.sun.tools.javac.jvm.ClassReader.BadClassFile;
aoqi@0: import com.sun.tools.javac.main.JavaCompiler;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class T6330997 {
aoqi@0:     public static void main(String... args) {
aoqi@0:         increaseMajor("T1.class", 1);
aoqi@0:         increaseMajor("T2.class", 2);
aoqi@0:         javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
aoqi@0:         JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null);
aoqi@0:         JavaCompiler compiler = JavaCompiler.instance(task.getContext());
aoqi@0:         try {
aoqi@0:             compiler.resolveIdent("T1").complete();
aoqi@0:         } catch (Exception e) {
aoqi@0:             e.printStackTrace();
aoqi@0:             throw new RuntimeException("Failed: unexpected exception while reading class T1");
aoqi@0:         }
aoqi@0:         try {
aoqi@0:             compiler.resolveIdent("T2").complete();
aoqi@0:         } catch (BadClassFile e) {
aoqi@0:             System.err.println("Passed: expected completion failure " + e.getClass().getName());
aoqi@0:             return;
aoqi@0:         } catch (Exception e) {
aoqi@0:             e.printStackTrace();
aoqi@0:             throw new RuntimeException("Failed: unexpected exception while reading class T2");
aoqi@0:         }
aoqi@0:         throw new RuntimeException("Failed: no error reported");
aoqi@0:     }
aoqi@0: 
aoqi@0:     // Increase class file cfile's major version by delta
aoqi@0:     static void increaseMajor(String cfile, int delta) {
aoqi@0:         try {
aoqi@0:             RandomAccessFile cls = new RandomAccessFile(
aoqi@0:                     new File(System.getProperty("test.classes", "."), cfile), "rw");
aoqi@0:             FileChannel fc = cls.getChannel();
aoqi@0:             ByteBuffer rbuf = ByteBuffer.allocate(2);
aoqi@0:             fc.read(rbuf, 6);
aoqi@0:             ByteBuffer wbuf = ByteBuffer.allocate(2);
aoqi@0:             wbuf.putShort(0, (short)(rbuf.getShort(0) + delta));
aoqi@0:             fc.write(wbuf, 6);
aoqi@0:             fc.force(false);
aoqi@0:             cls.close();
aoqi@0:          } catch (Exception e){
aoqi@0:             e.printStackTrace();
aoqi@0:             throw new RuntimeException("Failed: unexpected exception");
aoqi@0:          }
aoqi@0:      }
aoqi@0: }