--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/channels/SocketChannel/SocketOptionTests.java	Sun Aug 31 18:39:01 2008 +0100
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2007-2008 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 4640544
+ * @summary Unit test to check SocketChannel setOption/getOption/options
+ *          methods.
+ */
+
+import java.nio.*;
+import java.nio.channels.*;
+import java.net.*;
+import java.io.IOException;
+import java.util.*;
+import static java.net.StandardSocketOption.*;
+
+public class SocketOptionTests {
+
+    static void checkOption(SocketChannel sc, SocketOption name, Object expectedValue)
+        throws IOException
+    {
+        Object value = sc.getOption(name);
+        if (!value.equals(expectedValue))
+            throw new RuntimeException("value not as expected");
+    }
+
+    public static void main(String[] args) throws IOException {
+        SocketChannel sc = SocketChannel.open();
+
+        // check supported options
+        Set<SocketOption<?>> options = sc.options();
+        List<? extends SocketOption> expected = Arrays.asList(SO_SNDBUF, SO_RCVBUF,
+            SO_KEEPALIVE, SO_REUSEADDR, SO_LINGER, TCP_NODELAY);
+        for (SocketOption opt: expected) {
+            if (!options.contains(opt))
+                throw new RuntimeException(opt.name() + " should be supported");
+        }
+
+        // check specified defaults
+        int linger = sc.<Integer>getOption(SO_LINGER);
+        if (linger >= 0)
+            throw new RuntimeException("initial value of SO_LINGER should be < 0");
+        checkOption(sc, SO_KEEPALIVE, false);
+        checkOption(sc, TCP_NODELAY, false);
+
+        // allowed to change when not bound
+        sc.setOption(SO_KEEPALIVE, true);
+        checkOption(sc, SO_KEEPALIVE, true);
+        sc.setOption(SO_KEEPALIVE, false);
+        checkOption(sc, SO_KEEPALIVE, false);
+        sc.setOption(SO_SNDBUF, 128*1024);      // can't check
+        sc.setOption(SO_RCVBUF, 256*1024);      // can't check
+        sc.setOption(SO_REUSEADDR, true);
+        checkOption(sc, SO_REUSEADDR, true);
+        sc.setOption(SO_REUSEADDR, false);
+        checkOption(sc, SO_REUSEADDR, false);
+        sc.setOption(SO_LINGER, 10);
+        linger = sc.<Integer>getOption(SO_LINGER);
+        if (linger < 1)
+            throw new RuntimeException("expected linger to be enabled");
+        sc.setOption(SO_LINGER, -1);
+        linger = sc.<Integer>getOption(SO_LINGER);
+        if (linger >= 0)
+            throw new RuntimeException("expected linger to be disabled");
+        sc.setOption(TCP_NODELAY, true);
+        checkOption(sc, TCP_NODELAY, true);
+        sc.setOption(TCP_NODELAY, false);       // can't check
+
+        // bind socket
+        sc.bind(new InetSocketAddress(0));
+
+        // allow to change when bound
+        sc.setOption(SO_KEEPALIVE, true);
+        checkOption(sc, SO_KEEPALIVE, true);
+        sc.setOption(SO_KEEPALIVE, false);
+        checkOption(sc, SO_KEEPALIVE, false);
+
+        sc.setOption(SO_LINGER, 10);
+        linger = sc.<Integer>getOption(SO_LINGER);
+        if (linger < 1)
+            throw new RuntimeException("expected linger to be enabled");
+        sc.setOption(SO_LINGER, -1);
+        linger = sc.<Integer>getOption(SO_LINGER);
+        if (linger >= 0)
+            throw new RuntimeException("expected linger to be disabled");
+        sc.setOption(TCP_NODELAY, true);        // can't check
+        sc.setOption(TCP_NODELAY, false);       // can't check
+
+        // NullPointerException
+        try {
+            sc.setOption(null, "value");
+            throw new RuntimeException("NullPointerException not thrown");
+        } catch (NullPointerException x) {
+        }
+        try {
+            sc.getOption(null);
+            throw new RuntimeException("NullPointerException not thrown");
+        } catch (NullPointerException x) {
+        }
+
+        // ClosedChannelException
+        sc.close();
+        try {
+            sc.setOption(TCP_NODELAY, true);
+            throw new RuntimeException("ClosedChannelException not thrown");
+        } catch (ClosedChannelException x) {
+        }
+    }
+}