--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/nio/channels/Selector/SelectAndCancel.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2004, 2010, 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 4729342
+ * @summary Check for CancelledKeyException when key cancelled during select
+ */
+
+import java.nio.channels.*;
+import java.io.IOException;
+import java.net.*;
+
+public class SelectAndCancel {
+    static SelectionKey sk;
+
+    /*
+     * CancelledKeyException is the failure symptom of 4729342
+     * NOTE: The failure is timing dependent and is not always
+     * seen immediately when the bug is present.
+     */
+    public static void main(String[] args) throws Exception {
+        final Selector selector = Selector.open();
+        final ServerSocketChannel ssc =
+            ServerSocketChannel.open().bind(new InetSocketAddress(0));
+        final InetSocketAddress isa =
+            new InetSocketAddress(InetAddress.getLocalHost(), ssc.socket().getLocalPort());
+
+        // Create and start a selector in a separate thread.
+        new Thread(new Runnable() {
+                public void run() {
+                    try {
+                        ssc.configureBlocking(false);
+                        sk = ssc.register(selector, SelectionKey.OP_ACCEPT);
+                        selector.select();
+                    } catch (IOException e) {
+                        System.err.println("error in selecting thread");
+                        e.printStackTrace();
+                    }
+                }
+            }).start();
+
+        // Wait for above thread to get to select() before we call close.
+        Thread.sleep(3000);
+
+        // Try to close. This should wakeup select.
+        new Thread(new Runnable() {
+                public void run() {
+                    try {
+                        SocketChannel sc = SocketChannel.open();
+                        sc.connect(isa);
+                        ssc.close();
+                        sk.cancel();
+                        sc.close();
+                    } catch (IOException e) {
+                        System.err.println("error in closing thread");
+                        System.err.println(e);
+                    }
+                }
+            }).start();
+
+        // Wait for select() to be awakened, which should be done by close.
+        Thread.sleep(3000);
+
+        selector.wakeup();
+        selector.close();
+    }
+}