Summary: Minor changes to networking java files to remove warnings
Reviewed-by: chegar, weijun, hawtin
Contributed-by: kurchi.subhra.hazra@oracle.com, sasha_bu@hotmail.com

Reviewed-by: alanb

Reviewed-by: alanb, chegar

Reviewed-by: alanb, michaelm

Reviewed-by: chegar, alanb

Reviewed-by: alanb

Reviewed-by: chegar

Reviewed-by: darcy, weijun

Summary: runtime type checks and deserialization check
Reviewed-by: chegar, alanb, jccollet

Reviewed-by: jccollet, hawtin

Summary: Cloned the proxy instance when necessary
Reviewed-by: chegar

Summary: add the description that while the local address parameter is null, anyLocalAddress will be used instead.
Reviewed-by: weijun

Reviewed-by: alanb, iris, lmalvent, bristor, peterjones, darcy, wetmore

Summary: Simple typo in method specification.
Reviewed-by: jccollet