Request for review: 7132690 InstanceKlass:_reference_type should be u1 type

Jiangli Zhou jiangli.zhou at
Tue Jan 24 12:04:53 PST 2012


Please review the change for 7132690:

It changes InstanceKlass::_reference_type from ReferenceType to u1. The 
ReferenceType is defined as an enum with 6 values 
(src/share/vm/utilities/globalDefinitions.hpp). The change saves 4-byte 
for each class.

Tested with runThese and ute vm.quick.testlist. Ran jprt.



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