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Added in API level 1

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).

Interfaces

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. 

Classes

PasswordCallback

Underlying security services instantiate and pass a PasswordCallback to the handle method of a CallbackHandler to retrieve password information. 

Exceptions

UnsupportedCallbackException Signals that a CallbackHandler does not recognize a particular Callback
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