Repository: dotnet/aspnetcore
File: src/Features/JsonPatch.SystemTextJson/src/Internal/ListAdapter.cs (C#)

Code before:
        {
            return false;
        }

        if (!TryConvertValue(value, typeArgument, segment, serializerOptions, out var convertedValue, out errorMessage))
        {
            return false;
        }

        var currentValue = GenericListOrJsonArrayUtilities.GetElementAt(target, positionInfo.Index);

        if (!JsonUtilities.DeepEquals(currentValue, convertedValue, serializerOptions))
        {
            errorMessage = Resources.FormatValueAtListPositionNotEqualToTestValue(currentValue, value, positionInfo.Index);
            return false;
        }
        else
        {
            errorMessage = null;
            return true;
        }
    }

    public virtual bool TryTraverse(object target, string segment, JsonSerializerOptions serializerOptions, out object value, out string errorMessage)
    {
        if(!TryGetListTypeArgument(target, out _, out errorMessage))
        {
            value = null;
            return false;
        }

        var count = GenericListOrJsonArrayUtilities.GetCount(target);

        if (!int.TryParse(segment, out var index))
        {
            value = null;
            errorMessage = Resources.FormatInvalidIndexValue(segment);
            return false;
        }

        if (index < 0 || index >= count)
        {
            value = null;
            errorMessage = Resources.FormatIndexOutOfBounds(segment);
            return false;
        }

        value = GenericListOrJsonArrayUtilities.GetElementAt(target, index);
        errorMessage = null;
        return true;
    }

Review comment (suggestion):
```suggestion
        if (!TryGetListTypeArgument(target, out _, out errorMessage))
```

Code after:
        {
            return false;
        }

        if (!TryConvertValue(value, typeArgument, segment, serializerOptions, out var convertedValue, out errorMessage))
        {
            return false;
        }

        var currentValue = GenericListOrJsonArrayUtilities.GetElementAt(target, positionInfo.Index);

        if (!JsonUtilities.DeepEquals(currentValue, convertedValue, serializerOptions))
        {
            errorMessage = Resources.FormatValueAtListPositionNotEqualToTestValue(currentValue, value, positionInfo.Index);
            return false;
        }
        else
        {
            errorMessage = null;
            return true;
        }
    }

    public virtual bool TryTraverse(object target, string segment, JsonSerializerOptions serializerOptions, out object value, out string errorMessage)
    {
        if (!TryGetListTypeArgument(target, out _, out errorMessage))
        {
            value = null;
            return false;
        }

        if (!int.TryParse(segment, out var index))
        {
            value = null;
            errorMessage = Resources.FormatInvalidIndexValue(segment);
            return false;
        }

        var count = GenericListOrJsonArrayUtilities.GetCount(target);

        if (index < 0 || index >= count)
        {
            value = null;
            errorMessage = Resources.FormatIndexOutOfBounds(segment);
            return false;
        }

        value = GenericListOrJsonArrayUtilities.GetElementAt(target, index);
        errorMessage = null;
        return true;
    }