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8237352: Update DatagramSocket to add support for joining multicast groups

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Reviewed-by: alanb
This commit is contained in:
Daniel Fuchs 2021-02-08 12:55:00 +00:00
parent d0a8f2f737
commit 2c28e36454
5 changed files with 931 additions and 111 deletions
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9
src/java.base/windows/classes/java/net/DefaultDatagramSocketImplFactory.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2007, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2007, 2021, 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
@ -97,10 +97,9 @@ class DefaultDatagramSocketImplFactory
throw new SocketException("can't instantiate DatagramSocketImpl");
}
} else {
if (!preferIPv4Stack && !isMulticast)
return new DualStackPlainDatagramSocketImpl(exclusiveBind);
else
return new TwoStacksPlainDatagramSocketImpl(exclusiveBind && !isMulticast, isMulticast);
// Always use TwoStacksPlainDatagramSocketImpl since we need
// to support multicasting at DatagramSocket level
return new TwoStacksPlainDatagramSocketImpl(exclusiveBind && !isMulticast, isMulticast);
}
}
}