JDK-6703888 : Compressed Oops: use the 32-bits gap after klass in a object
- Type: Enhancement
- Component: hotspot
- Sub-Component: compiler
- Affected Version: hs14
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- OS: solaris_10
- CPU: x86
- Submitted: 2008-05-16
- Updated: 2013-11-01
- Resolved: 2008-06-12
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| JDK 6 | JDK 7 | Other |
|---|---|---|
6u14Fixed  |
7Fixed |
hs13Fixed |
Related Reports
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Description
With Compressed Oops there is 32-bits gap after narrow 'klass' field in a object. Currently it is filled only with primitive type fields. Use the gap also for a narrow oop field and a boxing object value (except Long and Double). Use heapOopSize for instanceKlass::_nonstatic_field_size value instead of wordSize to define the size more precisely.
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