RFR: 8215395: Allow null oops in Dictionary and JNIHandle verification

[Erik Österlund]

Hi Per,

Looks good.

Thanks,
/Erik

On 2018-12-14 09:18, Per Liden wrote:
> JDK-8214784 adjusted the Dictionary and JNIHandle verification, but 
> failed to take into account that these oops can be null. We should be 
> using oopDesc::is_oop_or_null() here rather than just oopDesc::is_oop().
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8215395
> Webrev: http://cr.openjdk.java.net/~pliden/8215395/webrev.0
>
> /Per