The header is only 12 bytes with compressedOops (which most people use), but the... | Hacker News

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		jcdavis on July 12, 2016 \| parent \| context \| favorite \| on: Allocation on the JVM: Down the rabbit hole The header is only 12 bytes with compressedOops (which most people use), but the long is aligned on an 8 byte boundary so the advantage is wasted here.

alblue on July 12, 2016 [–]

And even if the long wasn't on an aligned boundary, the object itself is. So you either have padding at the start or end of the object.

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