| /* |
| * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4876942 6715251 |
| * @summary javap invoked without args does not print help screen |
| * @modules jdk.jdeps/com.sun.tools.javap |
| */ |
| |
| import java.io.*; |
| import java.util.zip.*; |
| |
| public class T4876942 { |
| public static void main(String[] args) throws Exception { |
| new T4876942().run(); |
| } |
| |
| public void run() throws IOException { |
| String output = javap(); |
| verify(output, "-public", "-protected", "-private"); // check that some of the options are listed |
| |
| if (errors > 0) |
| throw new Error(errors + " found."); |
| } |
| |
| String javap(String... args) { |
| StringWriter sw = new StringWriter(); |
| PrintWriter out = new PrintWriter(sw); |
| //sun.tools.javap.Main.entry(args); |
| int rc = com.sun.tools.javap.Main.run(args, out); |
| if (rc != (args.length == 0 ? 2 : 0)) |
| throw new Error("javap failed. rc=" + rc); |
| out.close(); |
| return sw.toString(); |
| } |
| |
| void verify(String output, String... expects) { |
| for (String expect: expects) { |
| if (output.indexOf(expect)< 0) |
| error(expect + " not found"); |
| } |
| } |
| |
| void error(String msg) { |
| System.err.println(msg); |
| errors++; |
| } |
| |
| int errors; |
| } |