获取本机所有网卡

@return 所有网卡，异常返回<code>null</code>
@since 3.0.1
163642
public static Collection<NetworkInterface> getNetworkInterfaces() {
		Enumeration<NetworkInterface> networkInterfaces = null;
		try {
			networkInterfaces = NetworkInterface.getNetworkInterfaces();
		} catch (SocketException e) {
			return null;
		}

		return CollectionUtil.addAll(new ArrayList<NetworkInterface>(), networkInterfaces);
	}
104403
public java.util.List<String> getTagKeys() {
        if (tagKeys == null) {
            tagKeys = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return tagKeys;
    }
1066988
public List<String> getAllString() {
		ArrayList<String> strings = new ArrayList<>();
		List<StringEntity> entities = getAll();
		for (StringEntity entity : entities) {
			strings.add(entity.getValue());
		}
		return strings;
	}
1215050
public List<T> getEntireList() {
		InnerList iList = ref.get();
		return iList != null ? iList.getList() : null;
	}
1133193
protected List<T> currentResults() {
        return results == null ? Collections.emptyList()
            : Collections.unmodifiableList(results);
    }
299246
public <V> V getValue() {
        if (values == null || values.isEmpty()) {
            return null;
        }
        return (V)values.get(0);
    }
159959
public java.util.List<String> getValueSet() {
        if (valueSet == null) {
            valueSet = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return valueSet;
    }
873931
public java.util.List<String> getHsmList() {
        if (hsmList == null) {
            hsmList = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return hsmList;
    }
787744
public java.util.List<Option> getOptions() {
        if (options == null) {
            options = new com.amazonaws.internal.SdkInternalList<Option>();
        }
        return options;
    }
629125
public java.util.List<ValidationWarning> getValidationWarnings() {
        if (validationWarnings == null) {
            validationWarnings = new com.amazonaws.internal.SdkInternalList<ValidationWarning>();
        }
        return validationWarnings;
    }
233725
public java.util.List<CodingDt> getCode() {  
		if (myCode == null) {
			myCode = new java.util.ArrayList<CodingDt>();
		}
		return myCode;
	}
1038158
public List<String[]> selectAll(){
		final List<String[]> result = new ArrayList<>((int)countAll(this.datas.length));
		for(int i = 1; i <= this.datas.length; i++) {
			result.addAll(select(i));
		}
		return result;
	}
1065810
public java.util.ArrayList getExceptions() {
        if (exceptions != null)
            return (java.util.ArrayList) exceptions.clone();
        else
            return null;
    }
1332223
public Collection<CallTreeNode> getChildren() {
		return children == null ? Collections.<CallTreeNode>emptyList() : children.values();
	}
377514
public java.util.List<CodingDt> getCoding() {  
		if (myCoding == null) {
			myCoding = new java.util.ArrayList<CodingDt>();
		}
		return myCoding;
	}
969599
public java.util.List<ListenerDescription> getListenerDescriptions() {
        if (listenerDescriptions == null) {
            listenerDescriptions = new com.amazonaws.internal.SdkInternalList<ListenerDescription>();
        }
        return listenerDescriptions;
    }
469235
public List<String> getCategories(){
		List<String> categories = FieldUtil.getCategories(getField());

		if(categories != null && !categories.isEmpty()){
			return categories;
		}

		return null;
	}