RFR (XS): 8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method

[John Rose]

Reviewed.

On Oct 2, 2013, at 8:17 PM, Christian Thalinger <christian.thalinger at oracle.com> wrote:

> https://bugs.openjdk.java.net/browse/JDK-8025566
> http://cr.openjdk.java.net/~twisti/8025566
> 
> 8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
> Reviewed-by:
> 
> The problem is in ciMethod::ensure_method_data().  The call to ciMethodData::load_data() can fail when the backing metadata pointer is null and return with a still empty method data.  So we have to check here for non-emptiness.
> 
> I also removed ciMethodData::set_mature().  This method was only used with the old JSR 292 implementation.
>