AdditionalProperties (OpenAM Server Only 7.4.1 Documentation)

```
@Retention(RUNTIME)
@Target(TYPE)
public @interface AdditionalProperties
```
Annotation to define JSON Schema additionalProperties, which is useful when working with key/value JSON data structures.
For example, the following JSON Schema defines a map from string (key) to string (value),
```
 {
   "type": "object",
   "additionalProperties": {
     "type": "string"
   }
 }
 
```
Note that keys are always strings in JSON, so the schema does not define that fact.
The annotation in this example would be used as follows,
```
 @AdditionalProperties(String.class)
 private static class MyMap extends HashMap<String, String> {}
 
```

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  Class<?> value
  The type to produce the additional-properties schema from.

- Element Detail
  - value
```
Class<?> value
```
    The type to produce the additional-properties schema from.
    
    Default:
    
    java.lang.Void.class