Mon, 03 Oct 2016 11:21:14 -0700
Added tag jdk8u122-b02 for changeset 2baeb96fa198
1 /*
2 * Copyright (c) 2014, 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 */
24 /*
25 * @test
26 * @bug 8033930 8033913
27 * @summary bad formatting of StackMapTable entries
28 */
30 import java.io.*;
31 import java.util.*;
33 public class StackMapTableTest {
34 public static void main(String... args) throws Exception {
35 new StackMapTableTest().run();
36 }
38 void run() throws Exception {
39 String testClasses = System.getProperty("test.classes");
40 String out = javap("-v", "-classpath", testClasses, A.class.getName());
42 String nl = System.getProperty("line.separator");
43 out = out.replaceAll(nl, "\n");
45 if (out.contains("\n\n\n"))
46 error("double blank line found");
48 String expect =
49 " StackMapTable: number_of_entries = 2\n" +
50 " frame_type = 252 /* append */\n" +
51 " offset_delta = 2\n" +
52 " locals = [ int ]\n" +
53 " frame_type = 250 /* chop */\n" +
54 " offset_delta = 18\n";
55 if (!out.contains(expect))
56 error("expected text not found");
58 if (errors > 0)
59 throw new Exception(errors + " errors found");
60 }
62 String javap(String... args) throws Exception {
63 StringWriter sw = new StringWriter();
64 PrintWriter out = new PrintWriter(sw);
65 int rc = com.sun.tools.javap.Main.run(args, out);
66 out.close();
67 System.out.println(sw.toString());
68 if (rc < 0)
69 throw new Exception("javap exited, rc=" + rc);
70 return sw.toString();
71 }
73 void error(String msg) {
74 System.out.println("Error: " + msg);
75 errors++;
76 }
78 int errors;
80 /** Simple test class to run through javap. */
81 public class A {
82 public void a() {
83 for (int i = 0; i < 10; i++) {
84 System.out.println(i);
85 }
86 }
87 public void b() {
88 }
89 public void c() {
90 }
91 }
92 }