test/jdk/java/lang/instrument/GetObjectSizeIntrinsicsTest.java

ARRAY_HEADER_SIZE is wrong for 32 bit. Should be 12.

Practically it does not matter for the test, since all values are aligned up to object alignment anyway, which is hard-coded to 8 bytes for 32bit, and cannot be smaller than machine word size on 64-bit. Just a clarity issue.