/* * Copyright (c) 2007, 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 6359397 * @summary Test if FileOutputStream methods will check if the stream * has been closed. */ import java.io.*; public enum OpsAfterClose { WRITE { boolean check(FileOutputStream r) { try { r.write(1); } catch (IOException io) { System.out.print("Excep Msg: "+ io.getMessage() + ", "); return true; } return false; } }, WRITE_BUF { boolean check(FileOutputStream r) { try { byte buf[] = new byte[2]; r.write(buf); } catch (IOException io) { System.out.print("Excep Msg: "+ io.getMessage() + ", "); return true; } return false; } }, WRITE_BUF_OFF { boolean check(FileOutputStream r) { try { byte buf[] = new byte[2]; int len = 1; r.write(buf, 0, len); } catch (IOException io) { System.out.print("Excep Msg: "+ io.getMessage() + ", "); return true; } return false; } }, GET_CHANNEL { boolean check(FileOutputStream r) { r.getChannel(); return true; } }, GET_FD { boolean check(FileOutputStream r) { try { r.getFD(); return true; } catch (IOException io) { System.out.print("Excep Msg: "+ io.getMessage() + ", "); return false; } } }, CLOSE { boolean check(FileOutputStream r) { try { r.close(); return true; // No Exceptin thrown on Windows } catch (IOException io) { System.out.print("Excep Msg: "+ io.getMessage() + ", "); return true; // Exception thrown on solaris and linux } } }; abstract boolean check(FileOutputStream r); public static void main(String args[]) throws Exception { boolean failed = false; File f = new File(System.getProperty("test.dir", "."), "f.txt"); f.createNewFile(); f.deleteOnExit(); FileOutputStream fis = new FileOutputStream(f); if (testFileOutputStream(fis)) { throw new Exception("Test failed for some of the operation{s}" + " on FileOutputStream, check the messages"); } } private static boolean testFileOutputStream(FileOutputStream r) throws Exception { r.close(); boolean failed = false; boolean result; System.out.println("Testing File:" + r); for (OpsAfterClose op : OpsAfterClose.values()) { result = op.check(r); if (!result) { failed = true; } System.out.println(op + ":" + result); } if (failed) { System.out.println("Test failed for the failed operation{s}" + " above for the FileOutputStream:" + r); } return failed; } }