@Override
  public boolean execute() {
    PsiDocumentManager.getInstance(myProject).commitAllDocuments();

    if (!myReference.getElement().isValid()) {
      return false;
    }

    for (PsiClass myTargetClass : myTargetClasses) {
      if (!myTargetClass.isValid()) {
        return false;
      }
    }

    if (myTargetClasses.length == 1) {
      addImport(myReference, myTargetClasses[0]);
    }
    else {
      chooseClassAndImport();
    }
    return true;
  }
@Override
  public boolean execute()