private static long f ( long l ) {
  throw new UnsupportedOperationException ( "Not supported yet." ) ;
  ;
}

private static long f ( long l ) { throw new UnsupportedOperationException ( " Not ▁ supported ▁ yet . " ) ; ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (throw_statement (object_creation_expression type: (type_identifier) arguments: (argument_list (string_literal))))))