Internal (Keikai Spreadsheet Build 6.0.0 API)

```
@Documented
@Retention(RUNTIME)
public @interface Internal
```
Program elements annotated @Internal are intended for POI internal use only. Such elements are not public by design and likely to be removed, have their signature change, or have their access level decreased from public to protected, package, or private in future versions of POI without notice. @Internal elements are eligible for immediate modification or removal and are not subject to the POI project policy of deprecating an element for 2 major releases before removing.

Since:

POI-3.6

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String since
  The POI version when an element was declared internal.
  
  String value

- Element Detail
  - value
```
String value
```
    Default:
    
    ""
- - since
```
String since
```
    The POI version when an element was declared internal. This is not the same as an @since javadoc annotation which specifies when the feature itself was added. A feature that was made internal after it was added may have a different since and Internal-since version numbers.
    
    Default:
    
    ""