private void setConfig(String config) {
		if (config == null) {
			throw new NullPointerException("Configuration name may not be null");
		}
		for (Configuration configListItem : configurations) {
			if (config.equals(configListItem.getName())) {
				connectionsList.setSelectedItem(configListItem);
				return;
			}
		}
		System.err.printf("Warning: Configuration %s not found", config);
	}