# Uses of Package
javax.security.auth.callback

- Packages that use javax.security.auth.callback
  Package | Description
  --- | ---
  com.sun.security.auth.callback | Provides an implementation of `CallbackHandler`.
  com.sun.security.auth.module | Provides implementations of `LoginModule`.
  java.security | Provides the classes and interfaces for the security framework.
  javax.security.auth.callback | This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).
  javax.security.auth.login | This package provides a pluggable authentication framework.
  javax.security.auth.spi | This package provides the interface to be used for implementing pluggable authentication modules.
  javax.security.sasl | Contains class and interfaces for supporting SASL.

- Classes in javax.security.auth.callback used by com.sun.security.auth.callback
  Class | Description
  --- | ---
  Callback | Implementations of this interface are passed to a `CallbackHandler`, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.
  UnsupportedCallbackException | Signals that a `CallbackHandler` does not recognize a particular `Callback`.

- Classes in javax.security.auth.callback used by com.sun.security.auth.module
  Class | Description
  --- | ---
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.

- Classes in javax.security.auth.callback used by java.security
  Class | Description
  --- | ---
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.

- Classes in javax.security.auth.callback used by javax.security.auth.callback
  Class | Description
  --- | ---
  Callback | Implementations of this interface are passed to a `CallbackHandler`, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
  UnsupportedCallbackException | Signals that a `CallbackHandler` does not recognize a particular `Callback`.

- Classes in javax.security.auth.callback used by javax.security.auth.login
  Class | Description
  --- | ---
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.

- Classes in javax.security.auth.callback used by javax.security.auth.spi
  Class | Description
  --- | ---
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.

- Classes in javax.security.auth.callback used by javax.security.sasl
  Class | Description
  --- | ---
  Callback | Implementations of this interface are passed to a `CallbackHandler`, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.
  CallbackHandler | An application implements a `CallbackHandler` and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages.
  ChoiceCallback | Underlying security services instantiate and pass a `ChoiceCallback` to the `handle` method of a `CallbackHandler` to display a list of choices and to retrieve the selected choice(s).
  TextInputCallback | Underlying security services instantiate and pass a `TextInputCallback` to the `handle` method of a `CallbackHandler` to retrieve generic text information.