According to https://stackoverflow.com/questions/73691624/how-to-remove-line-breaks-with-apache-poi/73692616#comment130179141_73692616, we only seem to need getText(0) - that it isn't needed to call getText(1), etc.

I don't really use the XWPF APIs but I find them confusing. Seems that we should have a getText() that does the same as getText(0) and deprecate the latter - likewise, for the setText method.

Sorry. That SO comment was misleading. There really may be multiple `w:t` elements in one `w:r`. See example in 

ECMA-376-1:2016
Office Open XML File Formats — Fundamentals
and Markup Language Reference
October 2016

page 333:

... However, if a text wrapping break character (a
typical line break) were inserted after the word is, as follows:

<w:r>
 <w:t>This is</w:t>
 <w:br/>
 <w:t xml:space="preserve"> a simple sentence.</w:t>
</w:r>

But I've never seen Word itself doing as such. It always uses multiple runs then:

<w:r>
 <w:t>This is</w:t>
</w:r>
<w:r>
 <w:br/>
 <w:t xml:space="preserve"> a simple sentence.</w:t>
</w:r>

The XWPF APIs have largely grown by community contribution, without some of the overall review that the Excel format code has had. If someone has time to do a full review and suggest tweaks that'd be amazing!