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| JavaTM 2 Platform Standard Ed. 5.0
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## Uses of Package
javax.security.auth.callback

Packages that use javax.security.auth.callback
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 java.security
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
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
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
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
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.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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