--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/channels/Selector/CheckLocking.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ * @bug 4953599
+ * @run main/timeout=15 CheckLocking
+ * @summary check if setInterest blocks while in select
+ */
+
+import java.nio.*;
+import java.nio.channels.*;
+import java.nio.channels.spi.*;
+import java.net.*;
+
+public class CheckLocking implements Runnable {
+
+    private static Selector selector;
+
+    public CheckLocking() {
+    }
+
+    public void run() {
+        try {
+            selector.select();
+        } catch (Throwable th) {
+            th.printStackTrace();
+        }
+    }
+
+    private static void doSelect() throws Exception {
+        Thread thread = new Thread(new CheckLocking());
+        thread.start();
+        Thread.sleep(1000);
+    }
+
+    public static void main (String[] args) throws Exception {
+        selector = SelectorProvider.provider().openSelector();
+        SocketChannel sc = SocketChannel.open();
+        sc.configureBlocking(false);
+        SelectionKey sk = sc.register(selector,0,null);
+        doSelect();
+        sk.interestOps(SelectionKey.OP_READ);
+        selector.wakeup();
+    }
+}