Get up to speed with the core of Maven quickly, and then go beyond the foundations into the more powerful functionality of the build tool, such as profiles, scopes, multi-module projects and quite a bit more:
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:
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:
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:
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:
Get started with Spring and Spring Boot, through the Learn Spring course:
>> LEARN SPRINGExplore Spring Boot 3 and Spring 6 in-depth through building a full REST API with the framework:
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 OAuth, to 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:
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:
Refactor Java code safely β and automatically β with OpenRewrite.
Refactoring big codebases by hand is slow, risky, and easy to put off. Thatβs 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 β one for newcomers and one for experienced users. Youβll 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.
β’ Maven Compiler Plugin
β’ Quick Guide to the Maven Install Plugin
β’ The Maven Deploy Plugin
β’ The Maven Clean Plugin
β’ The Maven Verifier Plugin
β’ The Maven Site Plugin
β’ Guide to the Core Maven Plugins
1. Overview
This to-the-point tutorial describes the failsafe plugin, one of the core plugins of the Maven build tool.
For an overview of the other core plugins, refer to this article.
2. Plugin Goals
The failsafe plugin is used for integration tests of a project. It has two goals:
- integration-test β run integration tests; this goal is bound to the integration-test phase by default
- verify β verify that the integration tests passed; this goal is bound to the verify phase by default
3. Goal Execution
This plugin runs methods in test classes just like the surefire plugin. We can configure both plugins in similar ways. However, thereβre some crucial differences between them.
First, unlike surefire (see this article) which is included in the super pom.xml, the failsafe plugin with its goals must be explicitly specified in the pom.xml to be part of a build lifecycle:
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>3.1.2</version>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
<configuration>
...
</configuration>
</execution>
</executions>
</plugin>
The newest version of this plugin is here.
Second, the failsafe plugin runs and verifies tests using different goals. A test failure in the integration-test phase doesnβt fail the build straight away, allowing the phase post-integration-test to execute, where clean-up operations are performed.
Failed tests, if any, are only reported during the verify phase, after the integration test environment has been torn down properly.
4. Conclusion
In this article, we introduced the failsafe plugin, comparing it with the surefire plugin, another popular plugin used for testing.
