```
  0x000000011cf2c1e4:   cmp    $0xc02803c9,%ebp             ;   {oop(a 'org/jruby/RubyClass'{0x0000000601401e48})}
  0x000000011cf2c1ea:   jne    0x000000011cf2c22c           ;*if_acmpne {reexecute=0 rethrow=0 return_oop=0}
```
using object generations