Class PasswordCallback

java.lang.Object

javax.security.auth.callback.PasswordCallback

All Implemented Interfaces:: Serializable, Callback

public class PasswordCallback extends Object implements Callback, Serializable

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

Since:

1.4

See Also:

Constructor Summary

Constructor	Description
`PasswordCallback(String prompt, boolean echoOn)`	Construct a `PasswordCallback` with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

Method Summary

Modifier and Type	Method	Description
`void`	`clearPassword()`	Clear the retrieved password.
`char[]`	`getPassword()`	Get the retrieved password.
`String`	`getPrompt()`	Get the prompt.
`boolean`	`isEchoOn()`	Return whether the password should be displayed as it is being typed.
`void`	`setPassword(char[] password)`	Set the retrieved password.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PasswordCallback

public PasswordCallback(String prompt, boolean echoOn)

Construct a PasswordCallback with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

Parameters:: prompt - the prompt used to request the password.; echoOn - true if the password should be displayed as it is being typed.
Throws:: IllegalArgumentException - if prompt is null or if prompt has a length of 0.

Method Details

getPrompt

public String getPrompt()

Get the prompt.

Returns:: the prompt.

isEchoOn

public boolean isEchoOn()

Return whether the password should be displayed as it is being typed.

Returns:: the whether the password should be displayed as it is being typed.

setPassword

public void setPassword(char[] password)

Set the retrieved password.

This method makes a copy of the input password before storing it.

Parameters:

password - the retrieved password, which may be null.

See Also:

getPassword

public char[] getPassword()

Get the retrieved password.

This method returns a copy of the retrieved password.

Returns:

the retrieved password, which may be null.

See Also:

clearPassword

public void clearPassword()

Clear the retrieved password.

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/javax/security/auth/callback/PasswordCallback.html