Question about MethodHandles#explicitCastArgument

[Jochen Theodorou]

Am 16.11.2012 00:32, schrieb John Rose:
[...]
> What you are seeing is a bug.  I can reproduce this in JDK 7 but not in
> JDK 8.  The upcoming JDK 7 update will fix this, since it is a backport
> from 8.

ah, finally the backport of jdk8 ;) I hope it does not break other 
things;) Btw, I noticed this not only with Byte, but with almost any 
wrapper type... of course Float did work.

There is one part of he documentation that makes me a bit wonder 
though... If I want to convert a Long argument to an int argument it 
will not work? I mean it is not according to the Java widening rules 
afaik. And the documentation is telling about that. But since there are 
bytecode instructions for this - why the limitation? For me it means a 
lot of more work, since I not only have to check if they are primitives, 
I also have to check the widening conversions of Java are followed and 
if not apply my own transformations. And checking the widening rules... 
that is I think 19 cases.

bye Jochen

-- 
Jochen "blackdrag" Theodorou - Groovy Project Tech Lead
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