RFR: 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe

Christian Thalinger christian.thalinger at oracle.com
Wed Apr 22 17:56:19 UTC 2015


In some native data structures of the VM oops are stored uncompressed even if compressed oops are turned on, for example Klass::_java_mirror.  Java code which is tightly coupled with the VM should have the ability to read and write such fields.

This additional Unsafe API make the implementation of JEP 243: Java-Level JVM Compiler Interface simpler.


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