How to concatenate two AttributedString

Hi Everyone
The class java.text.AttributedString looks interesting, but I would like to create one not all at once.
I would like for example to create the AttributedString and addAttributes to it, then append some text at the end and add some attributes to this new text and so on, as I'm reading through a file for example...
I searched a lot and could not find a way to append a string to an already existing AttributedString or to concatenate two AttributedString.
I looked at the source and found that there is a constructor AttributedString(AttributedCharacterIterator[] iterators), that would be perfect but the problem is that this constructor is not public (it's "package"). Anyone knows why this constructor is not public or how to do it another way.
thanks
Adam

If I do this, I need to store all the attributes of my text when I read it and then apply them to the text. That's my plan B actually, because I don't want to store the attributes myself somewhere and then transfer them in the AttributedString. I would prefer to store them directly in the AttributedString as I read them.
The other way would be to read the text twice, first to get the text, then to add the attributes, but then I would have to shift the indexes if I removed some tags in the original text.
Anyway, I appreciate your remarks, it makes me think differently on the problem and see new alternatives...

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