Fix the “Login Pool Is Empty and Connection Creation Failed” error with 5 proven solutions for HikariCP, Spring Boot, MySQL, PostgreSQL, JDBC, and database connection pools.

Spring Boot is the most popular Java framework for building cloud-native applications, and Hibernate is the most popular object-relational mapping framework for implementing the JPA spec. This Spring ...

The Jakarta Persistence API (JPA) is a specification that defines a standardized framework for data persistence. Persistence is the fundamental mechanism for saving and retrieving data over time. In ...

The need to manage a user base for an online system is very frequent. Goal of this project is to offer a generic user's data management microservice. This microservice can offer a good and solid ...

I love spring-data-jpa, she set my hands free, crud methods are boring! However she is not perfect on dynamic native query and her return type must be an entity, although she provide us a ...

If you are creating a new Spring Boot project, one question you will inevitably need to answer is: What database should I use? Luckily, Spring Boot supports many databases such as H2, MySQL, Postgres, ...

Most Java programs use relational databases (MySQL, PostgreSQL) to store data for further processing. This is very common, especially when it comes to web applications that have a very wide range of ...

Community driven content discussing all aspects of software development from DevOps to design patterns. As MySQL installations continue to migrate and evolve to newer versions, the online JPA and ...