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src/java.base/share/classes/java/net/MulticastSocket.java

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rev 57580 : [mq]: MulticastSocketAdaptor

*** 1,7 **** /* ! * Copyright (c) 1995, 2019, 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. Oracle designates this --- 1,7 ---- /* ! * Copyright (c) 1995, 2020, 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. Oracle designates this
*** 27,36 **** --- 27,37 ---- import java.io.IOException; import java.util.Collections; import java.util.Enumeration; import java.util.Set; + /** * The multicast datagram socket class is useful for sending * and receiving IP multicast packets. A MulticastSocket is * a (UDP) DatagramSocket, with additional capabilities for * joining "groups" of other multicast hosts on the internet.
*** 206,215 **** --- 207,220 ---- * @since 1.4 */ public MulticastSocket(SocketAddress bindaddr) throws IOException { super((SocketAddress) null); + // No further initialization when this is a DatagramChannel socket adaptor + if (this instanceof sun.nio.ch.DatagramSocketAdaptor) + return; + // Enable SO_REUSEADDR before binding setReuseAddress(true); if (bindaddr != null) { try {
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