W3cubDocs

/OpenJDK 21

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 java.lang.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.

© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.base/javax/security/auth/callback/PasswordCallback.html