Uses of Interface org.w3c.dom.UserDataHandler (Java SE 12 & JDK 12 )

## Uses of Interface
org.w3c.dom.UserDataHandler

- Packages that use UserDataHandler
  Package | Description
  --- | ---
  javax.imageio.metadata | A package of the Java Image I/O API dealing with reading and writing metadata.
  org.w3c.dom | Provides the interfaces for the Document Object Model (DOM).

- - ### Uses of UserDataHandler in javax.imageio.metadata

    Methods in javax.imageio.metadata with parameters of type UserDataHandler
    Modifier and Type | Method | Description
    --- | --- | ---
    `Object` | IIOMetadataNode.`setUserData​(String key, Object data, UserDataHandler handler)` | This DOM Level 3 method is not supported for `IIOMetadataNode` and will throw a `DOMException`.

  - ### Uses of UserDataHandler in org.w3c.dom

    Methods in org.w3c.dom with parameters of type UserDataHandler
    Modifier and Type | Method | Description
    --- | --- | ---
    `Object` | Node.`setUserData​(String key, Object data, UserDataHandler handler)` | Associate an object to a key on this node.