Currently I'm tending to this hack: 
clean_cache: {
    no warnings qw<redefine once>;
    local *Class::Std::Fast::croak = sub {};
    use warnings;
    delete Class::Std::Fast::_cache_class_ref()->{STR};    
}

[download]
Recall that _cache_class_ref refuses to give me access to the list of cached classes if the caller is not a member of 'Class::Std', but this refusal is via croak, which I can redefine.

In reply to Re: Class::Std::Fast cache and threads by Boldra
in thread Class::Std::Fast cache and threads by Boldra

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