Put an extra byte in every object header

Xin Tong xerox.time.tech at gmail.com
Sun Dec 9 19:55:03 PST 2012

what is a way to put an extra byte into every object header in
hotspot. I tried putting it into class markOop and class Oop. none
worked. the runtime crashed when running java programs.
Is there anything i need to change ?


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