Lambda type argument resolution is currently supported for:
Oracle JDK 8
Open JDK 8
IBM JDK 8 will need some attention too.
Rostislav
----- Original Message -----
Hi Steven,
That's really interesting. It works for both Oracle JDK 1.8.0_91 and JDK
9 build 163 from
java.net. !!
One problem I see is that Jonathan Halterman's TypeResolver class has
the line
> String constantPoolName = JAVA_VERSION < 9 ?
> "sun.reflect.ConstantPool" :
"jdk.internal.reflect.ConstantPool";
so I don't think we could use it for any JDK < 9. Once JDK 9 stabilizes
and Resteasy is releasing JDK 9 code, maybe it would be OK.
Even better would be if Class.getGenericInterfaces() were to work in JDK
9, but, as of build 163, it doesn't.
In any case, you've helped to verify that the solution requires external
tricks. Let's hope that your "right approach" is followed.
Thank you very much,
Ron
On 04/03/2017 01:49 PM, Steven Schlansker wrote:
>> On Apr 3, 2017, at 10:11 AM, Ron Sigal <rsigal(a)redhat.com> wrote:
>> ...
>>
>> So, it seems that, for lambdas, Java doesn't keep the implementation type
>> and value of the type variable at run time. Does anyone have any ideas or
>> tricks?
> I did not have time to play with it myself, but I did run across this:
>
https://stackoverflow.com/questions/23863716/java-how-to-resolve-generic-...
> maybe that helps?
>
> It sounds like the "right approach" would be to request Java stash the
type
> information better for lambdas...
>
--
My company's smarter than your company (unless you work for Red Hat)
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