crash with -Xjcov and union types

Joel Borggrén-Franck joel.franck at
Tue Sep 30 08:38:23 UTC 2014

Hi Liam,

On 25 Sep 2014, at 23:57, Liam Miller-Cushon <cushon at> wrote:

> I'm seeing crashes with -Xjcov enabled while compiling code with union types. This seems to affect javac 7 through 9. I've attached a possible fix, and a jtreg test for the crash.
> Repro:

Thanks for the report and fix! I have filed

I don’t know enough about -Xjcov to review and commit your fix right now, but I’ll try to make this happen soon.


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