PostgreSQL transaction aborted on SQL error

Hello,

First time writing here, I hope this is the right place to ask this kind of
question. I've been working with PostgreSQL for a while now but i've just
found out that PostgreSQL marks my transaction for ROLLBACK and even stops
the execution of the transaction if an error occurs.

I'm a Java developer and I'm using JDBC to connect to PostgreSQL. I've made
a gist to showcase this behavior (
https://gist.github.com/UrkoLekuona/4be14e099aeec2e7d8ef616886b66fdf/) If
you run it, you'd see that when the unique key constraint is violated, my
transaction is stopped, i.e. the SELECT and DROP statements are not
executed. The thrown exception is org.postgresql.util.PSQLException: ERROR:
current transaction is aborted, commands ignored until end of transaction
block

I've purposely set AutoCommit to false, because in my real life use case
this is not an option. The only workaround I've found for this exception is
setting the connection property *autosave* to ALWAYS, (
https://jdbc.postgresql.org/documentation/head/connect.html)

My question is: is this the correct way of solving this issue? I'd rather
if there was a PostgreSQL flag to disable this behavior and make it work
like other RDBMS do, where if a statement failed, the transaction could
continue without explicitly marking a savepoint and rolling back.

Thanks in advance for your help, it is appreciated.

Urko