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From Josh Juneau <juneau...@gmail.com>
Subject Re: [profiler] Unsupported class file version
Date Wed, 04 Apr 2018 13:06:13 GMT
Hi Glenn,

I've performed a few tests successfully under JDK10 now.  I've not received
the "Unsupported class file version" error, as yet.  However, I will let
you know if I do encounter it.

Thanks

Josh Juneau
juneau001@gmail.com
http://jj-blogger.blogspot.com
https://www.apress.com/index.php/author/author/view/id/1866


On Tue, Apr 3, 2018 at 4:33 PM, Glenn Holmer <cenbe@kolabnow.com> wrote:

> I'm getting some strange results when testing profiling points, in the
> first test case (stopwatch and reset results).
>
> Source level 8, running under JDK8, works fine.
>
> Running under JDK10, I get what looks like hundreds of messages like
> this in the log file:
>
> *** Profiler warning (Tue Apr 03 15:58:52 CDT 2018): Error reading class
> java/lang/Object:
> Unsupported class file version: 54.0
>
> All the class names are different.
>
> Now here's the odd thing: under JDK10 with source level 8, the test
> works anyway: clicking the Guess button in Anagram Game increments the
> number of hits on the stopwatch profiling point.
>
> Under JDK10 with source level 10, the test fails (i.e. the number of
> hits is not incremented).
>
> Can anybody else verify this?
>
> --
> Glenn Holmer (Linux registered user #16682)
> "After the vintage season came the aftermath -- and Cenbe."
>
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