RFR:8212114 Reconsider the affect on closed streams resulting from 8189366

[vyom tewari]

Hi All,

Please review the below fix.

Webrev: http://cr.openjdk.java.net/~vtewari/8212114/webrev0.0/index.html

bugId: https://bugs.openjdk.java.net/browse/JDK-8212114

this change the revert the effect of JDK-8189366,  restore the 
existing(SocketInputStream:available() will throw the socketException if 
the underline socket is closed.) long-standing behavior.

Thanks,

Vyom