Why "System.arraycopy" uses "Object" instead of "Object[]"?

Just curious:

Someone knows why the method System.arraycopy uses Object as type for src and dest? Would be perfectly possible to use Object[] instead?

Why define:

arraycopy(Object src, int srcPos, Object dest, int destPos, int length)

instead of

arraycopy(Object[] src, int srcPos, Object[] dest, int destPos, int length)

?