private void findNext() {
		try {
			while (nextCu == null && it.hasNext()) {
				long addr = it.next();
				nextCu = codeMgr.getDataAt(addrMap.decodeAddress(addr), addr);
			}
		}
		catch (IOException e) {
		}
	}
@see ghidra.program.model.listing.CodeUnitIterator#next()
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/DataKeyIterator.java