| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8033930 8033913 |
| * @summary bad formatting of StackMapTable entries |
| * @modules jdk.jdeps/com.sun.tools.javap |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| |
| public class StackMapTableTest { |
| public static void main(String... args) throws Exception { |
| new StackMapTableTest().run(); |
| } |
| |
| void run() throws Exception { |
| String testClasses = System.getProperty("test.classes"); |
| String out = javap("-v", "-classpath", testClasses, A.class.getName()); |
| |
| String nl = System.getProperty("line.separator"); |
| out = out.replaceAll(nl, "\n"); |
| |
| if (out.contains("\n\n\n")) |
| error("double blank line found"); |
| |
| String expect = |
| " StackMapTable: number_of_entries = 2\n" + |
| " frame_type = 252 /* append */\n" + |
| " offset_delta = 2\n" + |
| " locals = [ int ]\n" + |
| " frame_type = 250 /* chop */\n" + |
| " offset_delta = 18\n"; |
| if (!out.contains(expect)) |
| error("expected text not found"); |
| |
| if (errors > 0) |
| throw new Exception(errors + " errors found"); |
| } |
| |
| String javap(String... args) throws Exception { |
| StringWriter sw = new StringWriter(); |
| PrintWriter out = new PrintWriter(sw); |
| int rc = com.sun.tools.javap.Main.run(args, out); |
| out.close(); |
| System.out.println(sw.toString()); |
| if (rc < 0) |
| throw new Exception("javap exited, rc=" + rc); |
| return sw.toString(); |
| } |
| |
| void error(String msg) { |
| System.out.println("Error: " + msg); |
| errors++; |
| } |
| |
| int errors; |
| |
| /** Simple test class to run through javap. */ |
| public class A { |
| public void a() { |
| for (int i = 0; i < 10; i++) { |
| System.out.println(i); |
| } |
| } |
| public void b() { |
| } |
| public void c() { |
| } |
| } |
| } |