A detailed explanation about generics, how and when to use type parameters, and when wildcards are more appropiate.
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Reinitialize Singleton Bean in Spring Context
Learn multiple ways to reinitialize singleton Spring beans at runtime.
REST vs. GraphQL vs. gRPC – Which API to Choose?
REST, GraphQL, and gRPC are solutions to different problems when calling webservices. We look at how they differ and can be combined in our architecture.
SpringRunner vs MockitoJUnitRunner
Learn the key differences between SpringRunner and MockitoJUnitRunner and understand their purpose.
Convert java.util.Date to java.sql.Date
Learn how to convert a java.util.Date to a java.sql.Date.
Convert String to Instant
Learn how to convert String to Instant with Java.
Convert String to String Array
Explore how to convert a String into a String array (String[])
Message Delivery Semantics in Streaming Platforms
Learn the differences between the three delivery semantics used in streaming platforms and how to obtain these guarantees in Apache Kafka.
A Guide to Variables in Postman
Learn about variables in Postman.
Java Weekly, Issue 457
Paving the on-ramp – definitely going to help people get started with Java
How to Parse an INI File in Java
Look at a couple of libraries that can help us parse INI files in Java
Spring JDBC Batch Inserts
How batch operation can increased insert performance.
Push Operations in MongoDB
Learn how to insert documents into an array in MongoDB.
Update Multiple Fields in a MongoDB Document
Explore various ways to update multiple fields of a document in MongoDB.
Java Weekly, Issue 425
Configurable card tables in Java GCs, Meet System Logger, configuring Spring Boot apps, serializability in practice, and 12-factor apps!
Java Weekly, Issue 421
Revisiting transactional, dynamic, and partial updates, JPA flush modes, Kafka vs Chronicle, and the real cost of attrition!
How to Get Docker-Compose to Always Use the Latest Image
In this tutorial, we’ll check out several options to ensure that docker-compose always uses the latest images of the applications.
Guide to Using ModelMapper
Learn how to map our data between differently structured objects using ModelMapper by creating custom class-to-class mappings with property mappers.
Introducing KivaKit
In this article, we’ll explore the design of KivaKit as a collection of “mini-frameworks” that work together. In addition, we’ll take a look at the essential features of each mini-framework.
Performance of System.arraycopy() vs. Arrays.copyOf()
Learn about the implementation and performance of System.arraycopy() and Arrays.copyOf()