@Override
		public void dbError(IOException e) throws RuntimeIOException {

			String message = e.getMessage();
			if (e instanceof ClosedException) {
				message = "Data type archive is closed: " + getName();
				Msg.showError(this, null, "IO ERROR", message, e);
			}

			throw new RuntimeIOException(e);
		}
{@code IdsToDataTypeMap} - DataType resolve cache map
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeManagerDB.java