If you have a few years of experience in the Java ecosystem and you'd like to share that with the community, have a look at our Contribution Guidelines.
Partner – JPA Buddy – NPI – expanded (tag = JPA)

The right tools can and will save a lot of time. As long as you are using Hibernate and IntelliJ IDEA you can boost your coding speed and quality with JPA Buddy. It will help in a lot of the day-to-day work:
- Creating JPA entities that follow best practices for efficient mapping
- Creating DTOs from entities and MapStruct mappers using convenient visual tools
- Generating entities from the existing database or Swagger-generated POJOs
- Visually composing methods for Spring Data JPA repositories
- Generating differential SQL to update your schema in accordance with your changes in entities
- Autogenerating Flyway migrations and Liquibase changelogs comparing entities with the database or two databases
- … and a lot more
Simply put, you'll learn and use the best practices of Hibernate and surrounding technology and become a lot more!
Definitely visit the JPA Buddy site to see its features in action closer.
Partner – MongoDB – NPI – expanded (tag = MongoDB)

You can explore MongoDB through their free forever cluster - Atlas.
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Get started with Spring 5 and Spring Boot 2, through the Learn Spring course:
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Collections
- Guava – Lists
- Guava – Sets
- Guava – Maps
- Guava Collections Cookbook
- Using Guava’s MapMaker
- Guide to Guava Multiset
- Guide to Guava MinMaxPriorityQueue and EvictingQueue
- Guide to Guava RangeMap
- Guide to Guava Table
- Guide to Guava’s Ordering
- Guide to Guava ClassToInstanceMap
- Guide to Guava RangeSet
- Guide to the Guava BiMap
- Guide to Guava Multimap
- Guava Set + Function = Map
- Filtering and Transforming Collections in Guava
- Guava Ordering Cookbook
- New Stream, Comparator and Collector in Guava 21
- Apache Commons Collections vs Google Guava
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