1/* 2 * Copyright (c) 2013, 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 * @bug 4955930 27 * @summary The "method0" StackMap attribute should have two entries instead of three 28 * @library /tools/lib 29 * @modules jdk.compiler/com.sun.tools.javac.api 30 * jdk.compiler/com.sun.tools.javac.main 31 * jdk.jdeps/com.sun.tools.javap 32 * @build toolbox.ToolBox toolbox.JavapTask 33 * @run compile StackMapTest.java 34 * @run main StackMapTest 35 */ 36 37import java.nio.file.Path; 38import java.nio.file.Paths; 39 40import toolbox.JavapTask; 41import toolbox.Task; 42import toolbox.ToolBox; 43 44// Original test: test/tools/javac/stackmap/T4955930.sh 45public class StackMapTest { 46 47 class Test { 48 void method0(boolean aboolean) throws Exception { 49 label_0: 50 while (true) { 51 if (aboolean) ; 52 else break label_0; 53 } 54 } 55 } 56 57 public static void main(String args[]) throws Exception { 58 ToolBox tb = new ToolBox(); 59 Path pathToClass = Paths.get(ToolBox.testClasses, "StackMapTest$Test.class"); 60 String javapOut = new JavapTask(tb) 61 .options("-v") 62 .classes(pathToClass.toString()) 63 .run() 64 .getOutput(Task.OutputKind.DIRECT); 65 66 if (!javapOut.contains("StackMapTable: number_of_entries = 2")) 67 throw new AssertionError("The number of entries of the stack map " 68 + "table should be equal to 2"); 69 } 70 71} 72