RFR: 8264142: Remove TRAPS/THREAD parameters for verifier related functions

[Harold Seigel]

On Thu, 25 Mar 2021 17:54:53 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Please review this small change to remove unneeded TRAPS and THREAD parameters from functions in verifier related files.  This change was tested with Mach5 tiers 1 and 2 on Linux, Mac OS, and Windows, and tiers 3-5 on Linux x64.
>> 
>> Thanks, Harold
>
> src/hotspot/share/classfile/classFileParser.cpp line 5636:
> 
>> 5634: // its _class_name field.
>> 5635: void ClassFileParser::prepend_host_package_name(const InstanceKlass* unsafe_anonymous_host) {
>> 5636:   JavaThread* current = JavaThread::current();
> 
> Can you pass Thread* current as the first parameter instead?  We're trying to minimize materializing the current thread.

How about if "ResourceMark rm(THREAD)" is changed to "ResourceMark rm;" ?  Then no Thread* is need in the function.

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PR: https://git.openjdk.java.net/jdk/pull/3194