2
* Copyright (c) 2012, 2024, Oracle and/or its affiliates. All rights reserved.
3
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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.
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
27
* @summary JavapTask passes null to java.io.Writer
28
* @modules jdk.jdeps/com.sun.tools.javap
32
import com.sun.tools.javap.*;
36
public static void main(String... args) {
41
verify("java.lang.Object");
43
throw new Error(errors + " found.");
46
void verify(String className) {
48
JavaFileManager fileManager = JavapFileManager.create(null, null);
49
JavaFileObject fo = fileManager.getJavaFileForInput(StandardLocation.PLATFORM_CLASS_PATH, className, JavaFileObject.Kind.CLASS);
51
error("Can't find " + className);
53
JavapTask t = new JavapTask(null, fileManager, null);
54
t.handleOptions(new String[] { "-sysinfo", className });
55
JavapTask.ClassFileInfo cfInfo = t.read(fo);
56
try (var in = fo.openInputStream()) {
57
expectEqual(in.readAllBytes().length, cfInfo.size);
60
} catch (NullPointerException ee) {
62
error("Exception: " + ee);
63
} catch (Exception ee) {
64
System.err.println("Caught exception: " + ee);
68
void expectEqual(int found, int expected) {
69
if (found != expected)
70
error("bad value found: " + found + " expected: " + expected);
73
void error(String msg) {
74
System.err.println(msg);