final void freePage(int oid) {
		long pos = getPos(oid);

		Assert.that((pos & (dbFreeHandleFlag | dbPageObjectFlag)) == dbPageObjectFlag);

		if ((pos & dbModifiedFlag) != 0) {
			free(pos & ~dbFlagsMask, Page.pageSize);
		}
		else {
			cloneBitmap(pos & ~dbFlagsMask, Page.pageSize);
		}

		freeId(oid);
	}