AI in Java Series | Baeldung

Mocking is an essential part of unit testing, and the Mockito
library makes it easy to write clean and intuitive unit
tests for your Java code.

Get started with mocking and improve your application tests
using our Mockito guide:

Download the
eBook

Handling concurrency in an application can be a tricky process
with many potential pitfalls. A solid grasp of the
fundamentals will go a long way to help minimize these issues.

Get started with understanding multi-threaded applications with
our Java Concurrency guide:

>>
Download the eBook

Spring 5 added support for reactive programming with the Spring
WebFlux module, which has been improved upon ever since. Get
started with the Reactor project basics and reactive programming
in Spring Boot:

>> Join Pro and
download the eBook

Since its introduction in Java 8, the Stream API has become a
staple of Java development. The basic operations like iterating,
filtering, mapping sequences of elements are deceptively simple to
use.

But these can also be overused and fall into some common
pitfalls.

To get a better understanding on how Streams work and how
to combine them with other language features, check out our guide
to Java Streams:

>> Join Pro
and download the eBook

Get started with Spring and Spring Boot, through the Learn
Spring course:

>> LEARN
SPRING

Yes, Spring Security can be complex, from the more advanced
functionality within the Core to the deep OAuth support in the
framework.

I built the security material as two full courses – Core and
OAuthto get practical with these more complex scenarios. We
explore when and how to use each feature and code through it on
the backing project.

You can explore the course here:

>> Learn Spring
Security

Spring Data JPA is a great way to handle the complexity of
JPA with the powerful simplicity of Spring Boot.

Get started with Spring Data JPA through the guided reference
course:

>> CHECK OUT THE
COURSE

Refactor Java code safely — and automatically — with
OpenRewrite.

Refactoring big codebases by hand is slow, risky, and easy to
put off. That’s where OpenRewrite comes in. The open-source
framework for large-scale, automated code transformations helps
teams modernize safely and consistently.

Each month, the creators and maintainers of OpenRewrite at
Moderne run live, hands-on training sessions — one for newcomers
and one for experienced users. You’ll see how recipes work, how to
apply them across projects, and how to modernize code with
confidence.

Join the next session,
bring your questions, and learn how to automate the kind of work
that usually eats your sprint time.

In distributed systems, managing multi-step processes
(e.g., validating a driver, calculating fares, notifying users) can
be difficult. We need to manage state, scattered retry logic, and
maintain context when services fail.

Dapr Workflows solves this via Durable Execution which
includes automatic state persistence, replaying workflows after
failures and built-in resilience through retries, timeouts and
error handling.

In this tutorial, we’ll see how to orchestrate a multi-step flow
for a ride-hailing application by integrating Dapr Workflows and
Spring Boot:

>>
Dapr Workflows With PubSub