High-Performance Java Persistence Newsletter, Issue 55

Imagine having a tool that can automatically detect JPA and Hibernate performance issues. Wouldn’t that be just awesome?

Well, Hypersistence Optimizer is that tool! And it works with Spring Boot, Spring Framework, Jakarta EE, Java EE, Quarkus, or Play Framework.

So, enjoy spending your time on the things you love rather than fixing performance issues in your production system on a Saturday night!


Welcome to a new issue of the High-Performance Java Persistence Newsletter in which we share articles, videos, workshops, and StackOverflow answers that are very relevant to any developer who interacts with a database system using Java.


The pick of this edition is this article that marks the 10-year anniversary of this blog. For over a decade, I managed to publish over 560 articles, answer thousands of StackOverflow questions, and create several OSS projects as well.

Looking back, I can only think of this quote from Bill Gates:

Most people overestimate what they can do in one year and underestimate what they can do in ten years.

A very good article I’ve read since the last newsletter edition was this one about database migrations.

Some time ago, I created an SQLExtractor tool in Hypersistence Utils that allows you to extract the underlying SQL query from a JPQL or Criteria API entity query, which turned out to be very useful.

Therefore, I decided to add another tool that helps you track where a given SQL query originated in your application stack. For more details about this topic, check out this article.

If you are using PostgreSQL, then you should definitely check this article about the internals of row-level locks.

Blaze Persistence is a great addition to JPA and Hibernate. Not only does it provide a better Criteria API and Keyset Pagination, but you can use it to fetch multiple entity collections at once using the MULTISET operator.

Best Tweets

Here are the best tweets I posted since the last newsletter:

Project Releases

PostgreSQL 16 was released, and it provides many improvements, like query parallelization, the pg_stat_io performance monitoring tool, as well as VACUUM and replication improvements.

The Hibernate ORM project has released two versions, 6.3.1 and 6.2.9, that you may be interested in investigating.

Get in touch with my latest articles!

StackOverflow Answers

The following StackOverflow answers have been trending since the last newsletter episode:

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