Java in a Nutshell, 5th Edition [Electronic resources] نسخه متنی

Classes that encapsulate sensitive
information, such as security
credentials, may implement this
interface to provide an API that allows the sensitive information to
be destroyed or erased. The destroy(
)
method erases or clears the sensitive information. It may throw a
DestroyFailedException if the information cannot
be erased for any reason. It may also throw a
SecurityException if the caller does not have
whatever permissions are required. Once destroy( )
has been called on an object, the isDestroyed(
) method returns
true. Once an object has been destroyed, any other
methods it defines may throw an
IllegalStateException.

public interface

Destroyable {
// Public Instance Methods
void

destroy ( ) throws DestroyFailedException;
boolean

isDestroyed ( );
}

Implementations

java.security.KeyStore.PasswordProtection,
javax.security.auth.kerberos.KerberosKey,
javax.security.auth.kerberos.KerberosTicket,
javax.security.auth.x500.X500PrivateCredential