Saying "their" is a stretching the pronoun "They" a little too far :)
AFAIK, this is just one developer, and he needs someone to tell him this
beta version is OK. Note that this is still in beta, though it was
released one year ago.
Anyway, I was interested in Java MySpell support, so I googled several
packages, which I unfortunately didn't really test. Here's a message
with a link to another one: