Mon, 19 Sep 2016 09:50:03 -0700
Merge
1 /*
2 * Copyright (c) 2002, 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 package p;
26 import java.io.*;
27 import com.sun.tools.javadoc.Main;
29 public class OutputRedirect {
31 public static void main(String[] args) {
32 PrintStream originalOutput = System.out;
33 try {
34 doTest();
35 } finally {
36 // restore things
37 System.setOut(originalOutput);
38 }
39 }
41 static void doTest() {
42 ByteArrayOutputStream redirectedOutput = new ByteArrayOutputStream();
43 PrintStream originalOutput = System.out;
45 // redirect System.out to a buffer
46 System.setOut(new PrintStream(redirectedOutput));
48 PrintWriter sink = new PrintWriter(new ByteArrayOutputStream());
50 // execute javadoc
51 int result = Main.execute("javadoc", sink, sink, sink,
52 "com.sun.tools.doclets.standard.Standard",
53 new String[] {"p"}
54 );
57 // test whether javadoc did any output to System.out
58 if (redirectedOutput.toByteArray().length > 0) {
59 originalOutput.println("Test failed; here's what javadoc wrote on its standard output:");
60 originalOutput.println(redirectedOutput.toString());
61 throw new Error("javadoc output wasn\'t properly redirected");
62 } else if (result != 0) {
63 throw new Error("javadoc run failed");
64 } else {
65 originalOutput.println("OK, good");
66 }
67 }
68 }