1 /*
   2  * Copyright (c) 2007, 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 6359397
  27  *  @summary Test if FileInputStream methods will check if the stream
  28  *          has been closed.
  29  */
  30 
  31 import java.io.*;
  32 
  33 public enum OpsAfterClose {
  34 
  35         READ { boolean check(FileInputStream r) {
  36                     try {
  37                         r.read();
  38                     } catch (IOException io) {
  39                         System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  40                         return true;
  41                     }
  42                     return false;
  43              } },
  44 
  45         READ_BUF { boolean check(FileInputStream r) {
  46                     try {
  47                         byte buf[] = new byte[2];
  48                         r.read(buf);
  49                     } catch (IOException io) {
  50                         System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  51                         return true;
  52                     }
  53                     return false;
  54             } },
  55         READ_BUF_OFF { boolean check(FileInputStream r) {
  56                     try {
  57                         byte buf[] = new byte[2];
  58                         int len = 1;
  59                         r.read(buf, 0, len);
  60                     } catch (IOException io) {
  61                         System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  62                         return true;
  63                     }
  64                     return false;
  65              } },
  66         GET_CHANNEL { boolean check(FileInputStream r) {
  67                     r.getChannel();
  68                     return true;
  69              } },
  70         GET_FD { boolean check(FileInputStream r) {
  71                     try {
  72                         r.getFD();
  73                         return true;
  74                     } catch (IOException io) {
  75                         System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  76                         return false;
  77                     }
  78              } },
  79         SKIP { boolean check(FileInputStream r) {
  80                     try {
  81                         r.skip(1);
  82                     } catch (IOException io) {
  83                         System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  84                         return true;
  85                     }
  86                     return false;
  87              } },
  88         CLOSE { boolean check(FileInputStream r) {
  89                 try {
  90                     r.close();
  91                     return true; // No Exception thrown on windows
  92                 } catch (IOException io) {
  93                     System.out.print("Excep Msg: "+ io.getMessage() + ", ");
  94                     return true; // Exception thrown on solaris and linux
  95                 }
  96              } };
  97 
  98     abstract boolean check(FileInputStream r);
  99 
 100     public static void main(String args[]) throws Exception {
 101 
 102         boolean failed = false;
 103 
 104         File f = new File(System.getProperty("test.dir", "."),
 105                           "f.txt");
 106         f.createNewFile();
 107         f.deleteOnExit();
 108 
 109         FileInputStream fis = new FileInputStream(f);
 110         if (testFileInputStream(fis)) {
 111             throw new Exception("Test failed for some of the operation{s}" +
 112                 " on FileInputStream, check the messages");
 113         }
 114     }
 115 
 116     private static boolean testFileInputStream(FileInputStream r)
 117             throws Exception {
 118         r.close();
 119         boolean failed = false;
 120         boolean result;
 121         System.out.println("Testing File:" + r);
 122         for (OpsAfterClose op : OpsAfterClose.values()) {
 123             result = op.check(r);
 124             if (!result) {
 125                 failed = true;
 126             }
 127            System.out.println(op + ":" + result);
 128         }
 129         if (failed) {
 130             System.out.println("Test failed for the failed operation{s}" +
 131                         " above for the FileInputStream:" + r);
 132         }
 133         return failed;
 134     }
 135 }