private static PsiVariable getVariable(PsiElement element) {
    final PsiElement parent = element.getParent();
    if (!(parent instanceof PsiLocalVariable) && !(parent instanceof PsiField)) {
      return null;
    }
    final PsiVariable var = (PsiVariable)element.getParent();
    final PsiType type = var.getType();
    if (!type.isValid()) return null;
    final PsiClass aClass = PsiTypesUtil.getPsiClass(type);
    if (aClass == null ||
        !(AtomicLong.class.getName().equals(aClass.getQualifiedName()) ||
          AtomicInteger.class.getName().equals(aClass.getQualifiedName()))) {
      return null;
    }
    final PsiExpression initializer = var.getInitializer();
    if (initializer != null) {
      if (initializer instanceof PsiNewExpression) {
        return LongAdderConversionRule.getParametersCount((PsiCallExpression)initializer) == -1 ? null : var;
      } else {
        return null;
      }
    }
    return var;
  }
private static PsiVariable getVariable(PsiElement element)