/* * Copyright (c) 2005, 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 5085148 * @summary Test if PrintWriter methods check if the stream * has been closed. */ import java.io.*; public enum OpsAfterClose { WRITE_BUF { boolean check(PrintWriter w) { char buf[] = new char[2]; w.write(buf); return w.checkError(); } }, WRITE_BUF_OFF { boolean check(PrintWriter w) { char buf[] = new char[2]; int len = 1; w.write(buf, 0, len); return w.checkError(); } }, WRITE_INT { boolean check(PrintWriter w) { w.write(1); return w.checkError(); } }, WRITE_STR { boolean check(PrintWriter w) { String s = "abc"; w.write(s); return w.checkError(); } }, WRITE_STR_OFF { boolean check(PrintWriter w) { String s = "abc"; w.write(s, 0, s.length()); return w.checkError(); } }; abstract boolean check(PrintWriter w); public static void main(String args[]) throws Exception { System.out.println("Testing PrintWriter"); boolean failed = false; boolean result = false; File f = new File(System.getProperty("test.dir", "."), "print-writer.out"); f.deleteOnExit(); for (OpsAfterClose op : OpsAfterClose.values()) { PrintWriter pw = new PrintWriter( new FileWriter(f)); pw.close(); result = op.check(pw); if (!result) { failed = true; } System.out.println(op + ":" + result); } if (failed) { throw new Exception( "Test failed for the failed operation{s} " + "above for the PrintWriter"); } } }