private boolean expressionIsNeverNull(@Nullable PsiExpression expression) {
    if (expression == null) {
      return false;
    }
    if (ExpressionUtils.nonStructuralChildren(expression).allMatch(
      expr -> expr instanceof PsiMethodCallExpression && isNotNull(((PsiMethodCallExpression)expr).resolveMethod()))) {
      return true;
    }
    return NullabilityUtil.getExpressionNullability(expression, true) == Nullability.NOT_NULL;
  }
private boolean expressionIsNeverNull(@Nullable PsiExpression expression)