1/* 2 * Copyright (c) 2014, 2016, 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 /test/lib 27 * @modules java.base/jdk.internal.org.objectweb.asm 28 * java.base/jdk.internal.misc 29 * java.management 30 * @compile -XDignore.symbol.file UnsupportedClassFileVersion.java 31 * @run main UnsupportedClassFileVersion 32 */ 33 34import java.io.File; 35import java.io.FileOutputStream; 36import jdk.internal.org.objectweb.asm.ClassWriter; 37import jdk.internal.org.objectweb.asm.MethodVisitor; 38import jdk.internal.org.objectweb.asm.Opcodes; 39import jdk.test.lib.process.ProcessTools; 40import jdk.test.lib.process.OutputAnalyzer; 41 42public class UnsupportedClassFileVersion implements Opcodes { 43 public static void main(String... args) throws Exception { 44 writeClassFile(); 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-cp", ".", "ClassFile"); 46 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 47 output.shouldContain("ClassFile has been compiled by a more recent version of the " + 48 "Java Runtime (class file version 99.0), this version of " + 49 "the Java Runtime only recognizes class file versions up to " + 50 System.getProperty("java.class.version")); 51 52 output.shouldHaveExitValue(1); 53 } 54 55 public static void writeClassFile() throws Exception { 56 ClassWriter cw = new ClassWriter(0); 57 MethodVisitor mv; 58 59 cw.visit(99, ACC_PUBLIC + ACC_SUPER, "ClassFile", null, "java/lang/Object", null); 60 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); 61 mv.visitCode(); 62 mv.visitVarInsn(ALOAD, 0); 63 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); 64 mv.visitInsn(RETURN); 65 mv.visitMaxs(1, 1); 66 mv.visitEnd(); 67 cw.visitEnd(); 68 69 try (FileOutputStream fos = new FileOutputStream(new File("ClassFile.class"))) { 70 fos.write(cw.toByteArray()); 71 } 72 } 73} 74