aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, 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 8033930 8033913
aoqi@0:  * @summary bad formatting of StackMapTable entries
aoqi@0:  */
aoqi@0: 
aoqi@0: import java.io.*;
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: public class StackMapTableTest {
aoqi@0:     public static void main(String... args) throws Exception {
aoqi@0:         new StackMapTableTest().run();
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run() throws Exception {
aoqi@0:         String testClasses = System.getProperty("test.classes");
aoqi@0:         String out = javap("-v", "-classpath", testClasses, A.class.getName());
aoqi@0: 
aoqi@0:         String nl = System.getProperty("line.separator");
aoqi@0:         out = out.replaceAll(nl, "\n");
aoqi@0: 
aoqi@0:         if (out.contains("\n\n\n"))
aoqi@0:             error("double blank line found");
aoqi@0: 
aoqi@0:         String expect =
aoqi@0:             "      StackMapTable: number_of_entries = 2\n" +
aoqi@0:             "        frame_type = 252 /* append */\n" +
aoqi@0:             "          offset_delta = 2\n" +
aoqi@0:             "          locals = [ int ]\n" +
aoqi@0:             "        frame_type = 250 /* chop */\n" +
aoqi@0:             "          offset_delta = 18\n";
aoqi@0:         if (!out.contains(expect))
aoqi@0:             error("expected text not found");
aoqi@0: 
aoqi@0:         if (errors > 0)
aoqi@0:             throw new Exception(errors + " errors found");
aoqi@0:     }
aoqi@0: 
aoqi@0:     String javap(String... args) throws Exception {
aoqi@0:         StringWriter sw = new StringWriter();
aoqi@0:         PrintWriter out = new PrintWriter(sw);
aoqi@0:         int rc = com.sun.tools.javap.Main.run(args, out);
aoqi@0:         out.close();
aoqi@0:         System.out.println(sw.toString());
aoqi@0:         if (rc < 0)
aoqi@0:             throw new Exception("javap exited, rc=" + rc);
aoqi@0:         return sw.toString();
aoqi@0:     }
aoqi@0: 
aoqi@0:     void error(String msg) {
aoqi@0:         System.out.println("Error: " + msg);
aoqi@0:         errors++;
aoqi@0:     }
aoqi@0: 
aoqi@0:     int errors;
aoqi@0: 
aoqi@0:     /** Simple test class to run through javap. */
aoqi@0:     public class A {
aoqi@0:         public void a() {
aoqi@0:             for (int i = 0; i < 10; i++) {
aoqi@0:                 System.out.println(i);
aoqi@0:             }
aoqi@0:         }
aoqi@0:         public void b() {
aoqi@0:         }
aoqi@0:         public void c() {
aoqi@0:         }
aoqi@0:     }
aoqi@0: }