T7186925.java revision 2942:08092deced3f 
1/*
2 * Copyright (c) 2012, 2015, 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 7186925
27 * @summary JavapTask passes null to java.io.Writer
28 * @modules jdk.jdeps/com.sun.tools.classfile
29 */
30
31import java.io.*;
32import java.util.*;
33import javax.tools.*;
34import com.sun.tools.javap.*;
35
36public class T7186925
37{
38    public static void main(String... args) {
39        new T7186925().run();
40    }
41
42    void run() {
43        verify("java.lang.Object");
44        if (errors > 0)
45            throw new Error(errors + " found.");
46    }
47
48    void verify(String className) {
49        try {
50            JavaFileManager fileManager = JavapFileManager.create(null, null);
51            JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);
52            if (fo == null) {
53                error("Can't find " + className);
54            } else {
55                JavapTask t = new JavapTask(null, fileManager, null);
56                t.handleOptions(new String[] { "-sysinfo", className });
57                JavapTask.ClassFileInfo cfInfo = t.read(fo);
58                expectEqual(cfInfo.cf.byteLength(), cfInfo.size);
59            }
60        } catch (NullPointerException ee) {
61            ee.printStackTrace();
62            error("Exception: " + ee);
63        } catch (Exception ee) {
64            System.err.println("Caught exception: " + ee);
65        }
66    }
67
68    void expectEqual(int found, int expected) {
69        if (found != expected)
70            error("bad value found: " + found + " expected: " + expected);
71    }
72
73    void error(String msg) {
74        System.err.println(msg);
75        errors++;
76    }
77
78    int errors;
79}
80