Authenticator (GNU JavaMail API documentation)

java.lang.Object
- javax.mail.Authenticator

```
public abstract class Authenticator
extends java.lang.Object
```
Callback object that can be used to obtain password information during authentication. This normally occurs by prompting the user for a password or retrieving it from secure storage.

Version:

1.4

Author:

Chris Burdess

Constructor Summary

Constructors
Constructor Description

Authenticator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.lang.String`	`getDefaultUserName()`	Returns the default user name.
`protected PasswordAuthentication`	`getPasswordAuthentication()`	Called when password authentication is needed.
`protected int`	`getRequestingPort()`	Returns the port used in the request.
`protected java.lang.String`	`getRequestingPrompt()`	Returns the user prompt string for the request.
`protected java.lang.String`	`getRequestingProtocol()`	Returns the protocol for the request.
`protected java.net.InetAddress`	`getRequestingSite()`	Returns the IP address of the request host, or null if not available.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Authenticator
```
public Authenticator()
```
- Method Detail
  - getDefaultUserName
```
protected final java.lang.String getDefaultUserName()
```
    Returns the default user name.
  - getPasswordAuthentication
```
protected PasswordAuthentication getPasswordAuthentication()
```
    Called when password authentication is needed. This method should be overridden by subclasses.
  - getRequestingPort
```
protected final int getRequestingPort()
```
    Returns the port used in the request.
  - getRequestingPrompt
```
protected final java.lang.String getRequestingPrompt()
```
    Returns the user prompt string for the request.
  - getRequestingProtocol
```
protected final java.lang.String getRequestingProtocol()
```
    Returns the protocol for the request.
  - getRequestingSite
```
protected final java.net.InetAddress getRequestingSite()
```
    Returns the IP address of the request host, or null if not available.