Clears the password.

  Clears the password.
Throws:
- DestroyFailedException - if this method was unable to clear the password

  Gets the password.

  Gets the password.

Note that this method returns a reference to the password. If a clone of the array is created it is the caller's responsibility to zero out the password information after it is no longer needed.
Returns: the password, which may be null
Throws:
- IllegalStateException - if the password has been cleared (destroyed)
See Also: KeyStore.PasswordProtection.destroy(),

  Determines if password has been cleared.

  Determines if password has been cleared.
Returns: true if the password has been cleared, false otherwise