MethodHandle.invoke* should only work with source 1.7

[Attila Szegedi]

On Feb 11, 2011, at 1:02 AM, Rémi Forax wrote:

> On 02/11/2011 12:20 AM, Attila Szegedi wrote:
>> I was actually doing this until yesterday for compiling the dynalink framework, and while the 1.6 javac did give me a warning and suggested I need a newer version of the compiler, it didn't stop with an error. When those classes were then loaded in an OpenJDK JVM, they nicely passed all tests. So funnily enough, I was able to work on it with the 1.6 compiler :-)
>> 
>> Of course, in my code, I never have actual invokedynamic call sites in the bytecode, it's all about direct MethodHandle manipulation.
>> 
>> Attila.
>> 
> 
> You are not alone.
> I don't want to denounce someone but I know a ruby guy ( :) ) that also 
> generate 1.6 classfile.

:-)

FWIW, I was doing it on purpose, as I (mistakenly) thought it'd be required to use dynalink in conjunction with the JSR-292 backport on a Java 6 JDK. One unexpected side benefit this had was that I was still able to measure test code coverage with EMMA…

Attila.

> 
> Rémi
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.openjdk.java.net/pipermail/mlvm-dev/attachments/20110211/8518fead/attachment.html