Data getDataAt(Address address, long addr) {
		if (addr == AddressMap.INVALID_ADDRESS_KEY) {
			return getUndefinedDataDB(address, addr);
		}
		lock.acquire();
		try {
			DataDB data = getDataDB(addr);
			if (data != null) {
				return data;
			}
			return getUndefinedAt(address, addr);
		}
		catch (IOException e) {
			program.dbError(e);
		}
		finally {
			lock.release();
		}
		return null;
	}
Returns the data whose min address equals the specified address.

@param address the min address of the data to return 
@return the data at the specified address, or null if data does not exist
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/code/CodeManager.java