T6824493.java revision 3294:9adfb22ff08f 
1/*
2 * Copyright (c) 2009, 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
24import java.io.*;
25import java.util.*;
26
27/*
28 * @test
29 * @bug 6824493
30 * @summary experimental support for additional info for instructions
31 * @modules jdk.jdeps/com.sun.tools.javap
32 * @compile -g T6824493.java
33 * @run main T6824493
34 */
35public class T6824493 {
36    public static void main(String... args) {
37        new T6824493().run();
38    }
39
40    void run() {
41        // for each of the options, we run javap and check for some
42        // marker strings in the output that generally indicate the
43        // presence of the expected output, without being as specific
44        // as a full golden file test.
45        test("-XDdetails:source",
46            "for (int i = 0; i < 10; i++) {",
47            "System.out.println(s + i);");
48
49        test("-XDdetails:tryBlocks",
50                "try[0]",
51                "end try[0]",
52                "catch[0]");
53
54        test("-XDdetails:stackMaps",
55                "StackMap locals:  this java/lang/String int",
56                "StackMap stack:  java/lang/Throwable");
57
58        test("-XDdetails:localVariables",
59                "start local 3 // java.util.List list",
60                "end local 3 // java.util.List list");
61
62        test("-XDdetails:localVariableTypes",
63                "start generic local 3 // java.util.List<java.lang.String> list",
64                "end generic local 3 // java.util.List<java.lang.String> list");
65
66        if (errors > 0)
67            throw new Error(errors + " errors found");
68    }
69
70    void test(String option, String... expect) {
71        String[] args = {
72            "-c",
73            "-classpath",
74            testSrc + File.pathSeparator + testClasses,
75            option,
76            "Test"
77        };
78        StringWriter sw = new StringWriter();
79        PrintWriter pw = new PrintWriter(sw);
80        int rc = com.sun.tools.javap.Main.run(args, pw);
81        if (rc != 0) {
82            error("unexpected return code from javap: " + rc);
83            return;
84        }
85
86        String out = sw.toString();
87        System.out.println(out);
88        for (String e: expect) {
89            if (!out.contains(e))
90                error("Not found: " + e);
91        }
92    }
93
94    void error(String msg) {
95        System.err.println("Error: " + msg);
96        errors++;
97    }
98
99    private int errors;
100    private String testSrc = System.getProperty("test.src", ".");
101    private String testClasses = System.getProperty("test.classes", ".");
102}
103
104class Test {
105    void m(String s) {
106        for (int i = 0; i < 10; i++) {
107            try {
108                List<String> list = null;
109                System.out.println(s + i);
110            } catch (NullPointerException e) {
111                System.out.println("catch NPE");
112            } finally {
113                System.out.println("finally");
114            }
115        }
116    }
117}
118