What databases are there in java and what are their differences?

Question

Java

I tried to get acquainted with the topic, in the zone and en, I found popular db , such as
HSQLDB
Orient DB
neo4j
H2
it turned out like this, I have general ideas about what databases are, I liked the description in the Bauman encyclopedia (but this is only one database), and comparative articles of databases (working in Java) on 5-20 pages,
with an up-to-date analysis (and not 5 years old, and not even 2016 according to five-year rumors), unfortunately I could not find, that is,
strong weaknesses, for which they are calculated and how they are used, in which projects they were used,
I did not find this. apparently I have yet to learn how to use search engines :(, thanks for the help