@Nullable
  private String getWorkingDirectory() {
    String workingDirectory = myWorkingDirectory;
    if (workingDirectory == null) {
      workingDirectory = StringUtil.notNullize(TerminalWorkingDirectoryManager.getWorkingDirectory(myWidget.asNewWidget()));
      myWorkingDirectory = workingDirectory;
    }
    return StringUtil.nullize(workingDirectory);
  }
@Nullable
  private String getWorkingDirectory()