--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/nio/channels/FileChannel/GetClosedChannel.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2014, 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 8025619
+ * @summary Verify that a channel obtained from a closed stream is truly closed.
+ */
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.channels.ClosedChannelException;
+import java.nio.channels.FileChannel;
+
+public class GetClosedChannel {
+ private static final int NUM_CHANNELS = 3;
+ private static final int NUM_EXCEPTIONS = 2*NUM_CHANNELS;
+
+ public static void main(String[] args) throws IOException {
+ int exceptions = 0;
+ int openChannels = 0;
+
+ for (int i = 0; i < NUM_CHANNELS; i++) {
+ File f = File.createTempFile("fcbug", ".tmp");
+ f.deleteOnExit();
+
+ FileChannel fc = null;
+ boolean shared = false;
+ switch (i) {
+ case 0:
+ System.out.print("FileInputStream...");
+ FileInputStream fis = new FileInputStream(f);
+ fis.close();
+ fc = fis.getChannel();
+ if (fc.isOpen()) {
+ System.err.println("FileInputStream channel should not be open");
+ openChannels++;
+ }
+ shared = true;
+ break;
+ case 1:
+ System.out.print("FileOutputStream...");
+ FileOutputStream fos = new FileOutputStream(f);
+ fos.close();
+ fc = fos.getChannel();
+ if (fc.isOpen()) {
+ System.err.println("FileOutputStream channel should not be open");
+ openChannels++;
+ }
+ break;
+ case 2:
+ System.out.print("RandomAccessFile...");
+ RandomAccessFile raf = new RandomAccessFile(f, "rw");
+ raf.close();
+ fc = raf.getChannel();
+ if (fc.isOpen()) {
+ System.err.println("RandomAccessFile channel should not be open");
+ openChannels++;
+ }
+ break;
+ default:
+ assert false : "Should not get here";
+ }
+
+ try {
+ long position = fc.position();
+ System.err.println("Channel "+i+" position is "+position);
+ } catch (ClosedChannelException cce) {
+ exceptions++;
+ }
+
+ try {
+ fc.tryLock(0, Long.MAX_VALUE, shared);
+ } catch (ClosedChannelException e) {
+ System.out.println("OK");
+ exceptions++;
+ } catch (Error err) {
+ System.err.println(err);
+ }
+ }
+
+ if (exceptions != NUM_EXCEPTIONS || openChannels != 0) {
+ throw new RuntimeException("FAILED:" +
+ " ClosedChannelExceptions: expected: " + NUM_EXCEPTIONS +
+ " actual: " + exceptions + ";" + System.lineSeparator() +
+ " number of open channels: expected: 0 " +
+ " actual: " + openChannels + ".");
+ }
+ }
+}