Question About MethodHandles.findSpecial
forax at univ-mlv.fr
Tue May 5 10:18:28 PDT 2009
Tobias Ivarsson a écrit :
> On Tue, May 5, 2009 at 5:15 PM, Fredrik Öhrström
> <fredrik.ohrstrom at oracle.com <mailto:fredrik.ohrstrom at oracle.com>> wrote:
> What is the purpose of being able to invoke the constructor
> through a MethodHandle?
In my opinion: avoid late binding.
> The reason I am asking is because
> to me, it seems like we cannot perform a new through
> a MethodHandle. Which means that we have to generate a
> factory method (to which we can bind a MethodHandle) to
> create a new instance and then we can just as well put
> the call to the constructor there. Or am i missing
> something? :-)
> Isn't findSpecial just using the same semantics as invokespecial?
> i.e. invoking/finding the method on the exact class instead of doing a
> virtual dispatch. That is used for other things than only
> constructors, in Java this is used for super.method(..)-invocations.
or invocation of private methods, see section 7.7 of the JVM spec.
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