protected List<LookupElement> getExactMatches(List<? extends LookupElement> items) {
    Editor editor = myProcess.getParameters().getEditor();
    if (editor instanceof EditorWindow) {
      editor = ((EditorWindow)editor).getDelegate();
    }
    String selectedText = editor.getSelectionModel().getSelectedText();
    List<LookupElement> exactMatches = new SmartList<>();
    for (LookupElement item : items) {
      if (isPrefixItem(item, true) || item.getLookupString().equals(selectedText)) {
        exactMatches.add(item);
      }
    }
    return exactMatches;
  }
protected List<LookupElement> getExactMatches(List<? extends LookupElement> items)