1 /* 2 * Copyright (c) 2014, 2015, 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 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @library /testlibrary 27 * @modules java.base/jdk.internal.org.objectweb.asm 28 * java.base/sun.misc 29 * java.management 30 * @compile -XDignore.symbol.file UnsupportedClassFileVersion.java 31 * @run main UnsupportedClassFileVersion 32 */ 33 34 import java.io.File; 35 import java.io.FileOutputStream; 36 import jdk.internal.org.objectweb.asm.ClassWriter; 37 import jdk.internal.org.objectweb.asm.MethodVisitor; 38 import jdk.internal.org.objectweb.asm.Opcodes; 39 import com.oracle.java.testlibrary.*; 40 41 public class UnsupportedClassFileVersion implements Opcodes { 42 public static void main(String... args) throws Exception { 43 writeClassFile(); 44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-cp", ".", "ClassFile"); 45 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 46 output.shouldContain("ClassFile has been compiled by a more recent version of the " + 47 "Java Runtime (class file version 99.0), this version of " + 48 "the Java Runtime only recognizes class file versions up to " + 49 System.getProperty("java.class.version")); 50 51 output.shouldHaveExitValue(1); 52 } 53 54 public static void writeClassFile() throws Exception { 55 ClassWriter cw = new ClassWriter(0); 56 MethodVisitor mv; 57 58 cw.visit(99, ACC_PUBLIC + ACC_SUPER, "ClassFile", null, "java/lang/Object", null); 59 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); 60 mv.visitCode(); 61 mv.visitVarInsn(ALOAD, 0); 62 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); 63 mv.visitInsn(RETURN); 64 mv.visitMaxs(1, 1); 65 mv.visitEnd(); 66 cw.visitEnd(); 67 68 try (FileOutputStream fos = new FileOutputStream(new File("ClassFile.class"))) { 69 fos.write(cw.toByteArray()); 70 } 71 } 72 }