JSONNull (GWT Javadoc)

java.lang.Object
- com.google.gwt.json.client.JSONValue
- - com.google.gwt.json.client.JSONNull

```
public class JSONNull
extends JSONValue
```
Represents the JSON null value.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static JSONNull`	`getInstance()`	Returns the singleton null-valued JSON object.
`(package private) JavaScriptObject`	`getUnwrapper()`	Internal.
`JSONNull`	`isNull()`	Returns `this`, as this is a JSONNull.
`java.lang.String`	`toString()`	Returns "null" to allow for formatting `null` values.

Methods inherited from class com.google.gwt.json.client.JSONValue
isArray, isBoolean, isNumber, isObject, isString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - getInstance
```
public static JSONNull getInstance()
```
    Returns the singleton null-valued JSON object.
  - isNull
```
public JSONNull isNull()
```
    Returns this, as this is a JSONNull.
    
    Overrides:
    
    isNull in class JSONValue
    
    Returns:
    
    a reference to a JSONNull if this JSONValue is a JSONNull or null otherwise.
  - toString
```
public java.lang.String toString()
```
    Returns "null" to allow for formatting null values.
    
    Specified by:
    
    toString in class JSONValue
  - getUnwrapper
```
JavaScriptObject getUnwrapper()
```
    Description copied from class: JSONValue
    
    Internal. Returns a JS func that can unwrap this value. Used from native code.
    
    Specified by:
    
    getUnwrapper in class JSONValue