1 /*
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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
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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  *
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22  */
23 
24 /**
25  *  @test
26  *  @bug 5085148
27  *  @summary Test if PrintWriter methods check if the stream
28  *           has been closed.
29  */
30 
31 import java.io.*;
32 
33 public enum OpsAfterClose {
34 
check(PrintWriter w)35         WRITE_BUF { boolean check(PrintWriter w) {
36                     char buf[] = new char[2];
37                     w.write(buf);
38                     return w.checkError();
39             } },
40 
check(PrintWriter w)41         WRITE_BUF_OFF { boolean check(PrintWriter w) {
42                     char buf[] = new char[2];
43                     int len = 1;
44                     w.write(buf, 0, len);
45                     return w.checkError();
46              } },
check(PrintWriter w)47         WRITE_INT { boolean check(PrintWriter w) {
48                     w.write(1);
49                     return w.checkError();
50              } },
check(PrintWriter w)51         WRITE_STR { boolean check(PrintWriter w) {
52                     String s = "abc";
53                     w.write(s);
54                     return w.checkError();
55              } },
check(PrintWriter w)56         WRITE_STR_OFF { boolean check(PrintWriter w) {
57                     String s = "abc";
58                     w.write(s, 0, s.length());
59                     return w.checkError();
60              } };
61 
check(PrintWriter w)62     abstract boolean check(PrintWriter w);
63 
main(String args[])64     public static void main(String args[]) throws Exception {
65 
66         System.out.println("Testing PrintWriter");
67         boolean failed = false;
68         boolean result = false;
69         File f = new File(System.getProperty("test.dir", "."),
70                           "print-writer.out");
71         f.deleteOnExit();
72 
73         for (OpsAfterClose op : OpsAfterClose.values()) {
74             PrintWriter pw = new PrintWriter(
75                                 new FileWriter(f));
76             pw.close();
77             result = op.check(pw);
78             if (!result) {
79                 failed = true;
80             }
81            System.out.println(op + ":" + result);
82         }
83         if (failed) {
84             throw new Exception(
85                 "Test failed for the failed operation{s} " +
86                 "above for the PrintWriter");
87         }
88     }
89 }
90