private static void addAllClasses(CompletionParameters parameters, final GroovyCompletionConsumer result, final JavaCompletionSession session) {
    addAllClasses(parameters, result::consume, session, result.getCompletionResultSet().getPrefixMatcher());
  }
private static void addAllClasses(CompletionParameters parameters, final GroovyCompletionConsumer result, final JavaCompletionSession session)