RFR(S): 8240204: Optimize package handling for archived classes

[Lois Foltan]

Looks good Yumin!
Lois

On 4/17/2020 1:56 AM, Yumin Qi wrote:
> Hi,
>
>   Please review:
>   bug: 8240204: https://bugs.openjdk.java.net/browse/JDK-8240204
>   webrev: http://cr.openjdk.java.net/~minqi/8240204/webrev-01/
>
>   Summary: Move ClassLoader::add_package to InstanceKlass since what 
> it does is calling pkg->set_classpath_index. Also a minor optimization 
> for InstanceKlass::set_package, for shared class, avoid call 
> check_prohibited_package since CDS does not archive prohibited classes.
>
>   Tests: hs-tier1-4
>   Performance data: javac and zprint showed a little improvement.
>
>   Thanks
>   Yumin