8062744: jdk.net.Sockets.setOption/getOption does not support IP_TOS

Reviewed-by: alanb, chegar

jdk/src/java.base/share/classes/java/net/SocketImpl.java

@@ -446,6 +446,7 @@ public abstract class SocketImpl implements SocketOptions {
 
         serverSocketOptions.add(StandardSocketOptions.SO_RCVBUF);
         serverSocketOptions.add(StandardSocketOptions.SO_REUSEADDR);
+        serverSocketOptions.add(StandardSocketOptions.IP_TOS);
     };
 
     /**

jdk/src/java.base/share/classes/jdk/net/Sockets.java

@@ -276,6 +276,7 @@ public class Sockets {
         set = new HashSet<>();
         set.add(StandardSocketOptions.SO_RCVBUF);
         set.add(StandardSocketOptions.SO_REUSEADDR);
+        set.add(StandardSocketOptions.IP_TOS);
         set = Collections.unmodifiableSet(set);
         options.put(ServerSocket.class, set);
 

jdk/test/jdk/net/Sockets/SupportedOptions.java

@@ -0,0 +1,48 @@
+/*
+ * 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 8062744
+ * @run main SupportedOptions
+ */
+
+import java.net.*;
+import java.io.IOException;
+import jdk.net.*;
+
+public class SupportedOptions {
+
+    public static void main(String[] args) throws Exception {
+        if (!Sockets.supportedOptions(ServerSocket.class)
+              .contains(StandardSocketOptions.IP_TOS)) {
+            throw new RuntimeException("Test failed");
+        }
+        // Now set the option
+        ServerSocket ss = new ServerSocket();
+        if (!ss.supportedOptions().contains(StandardSocketOptions.IP_TOS)) {
+            throw new RuntimeException("Test failed");
+        }
+        Sockets.setOption(ss, java.net.StandardSocketOptions.IP_TOS, 128);
+    }
+}