RFR (S) 8073479: Replace obj.getClass hacks with Objects.requireNonNull

[Aleksey Shipilev]

On 02/20/2015 05:51 PM, Vladimir Ivanov wrote:
>> Vladimir,
>>
>> Can you take a look if java.lang.invoke.* changes look good for you?
>>    http://cr.openjdk.java.net/~shade/8073479/webrev.00/
> Looks good.

Thank you for review!

-Aleksey.