RFR 8143923 :DatagramSocket and MulticastSocket supportedOptions set depends on call order

[vyom]

Hi All,

Please review the below code change.

Bug       : JDK-8143923 DatagramSocket and MulticastSocket 
supportedOptions set depends on call order

Webrev : 
http://cr.openjdk.java.net/~vtewari/8143923/webrev0.0/index.html 
<http://cr.openjdk.java.net/%7Evtewari/8143923/webrev0.0/index.html>


I found the same problem in java.net.Socket/ServerSocket, i did the code 
changes for them as well.

Thanks,
Vyom