An exception of this type indicates a problem with the credential (e.g., the password) presented during the login attempt. Subclasses provide more detail. Figure 19-23. javax.security.auth.login.CredentialExceptionpublic class CredentialException extends LoginException { // Public Constructors public CredentialException ( ); public CredentialException (String msg ); } SubclassesCredentialExpiredException , CredentialNotFoundException |