In addition to the Java Runtime Environment (JRE), the JDK includes the following components: Compiler The Java compiler is used to convert Java source code into bytecode that can be executed on the Java Virtual Machine (JVM). A compiler is a command-line tool that takes a .java file as input and produces a .class file…
Read More JRE, JDK, and JVM: Understanding Differences and UsesIn this tutorial, you will learn about Maven Goals and Phases and how they are related to each other and the Maven Build Lifecycle. So without further ado, let’s dive deep into the topic! Goals A goal is a Java method performing a particular task that contributes to the building of a project. You can…
Read More Maven Goals and Phases tutorialIn this tutorial, you will learn how to use TestRestTemplate to get a list of objects. If you are also interested to learn how to send an HTTP POST request, then please have a look at the “TestRestTemplate HTTP Post Example” tutorial. Maven Dependency To use TestRestTemplate in your Spring Boot project, you should have the…
Read More Get List of Objects with TestRestTemplateThis tutorial will teach you how to use TestRestTemplate to send HTTP Post requests. If you are also interested to learn how to send an HTTP GET request, then please have a look at the “Get List of Objects with TestRestTemplate” tutorial. What is TestRestTemplate? TestRestTemplate is HTTP Client that you use for Spring Boot…
Read More TestRestTemplate HTTP Post ExampleIn this tutorial, you will learn about @SpringBootTest annotation. You will use this annotation to write Integration Tests for your Spring Boot application. @SpringBootTest annotation is used to create a Spring Application Context that will be used during the test. It will make Spring Framework scan your application classes and look for different annotations. Depending…
Read More @SpringBootTest Annotation ExampleThis article will explore the JUnit 5 Assertions API, go in-depth with examples of building fundamental assertions, and look at customizing the error message that appears when an assertion fails. We’ll also discuss how to execute many assertions simultaneously as an assertion group in our last section. So, let’s begin! What are JUnit Assertions? As…
Read More An Overview of JUnit 5 Assertions with ExamplesIn this blog post, you will learn how to add user Roles and Authorities to a JWT token issued by the new Spring Authorization Server. When writing this tutorial, I assumed you are familiar with the new Spring Configuration Server setup. Otherwise, please check the Spring Authorization Server tutorial first. Adding Granted Authorities to JWT To include…
Read More Add Roles to JWT Issued by Spring Authorization ServerIn this blog post, you will learn the difference between @SpringBootTest and @WebMvcTest annotations. The main difference between the @SpringBootTest and @WebMvcTest annotations lies in the application context that they create. The @SpringBootTest annotation starts the full application context, which includes all the beans required for the application to function. On the other hand, the…
Read More Difference Between @SpringBootTest and @WebMvcTestIn this blog post, you will learn a couple of ways you can disable Spring Security Configuration for your @WebMvcTest. Disable Security Filters for @AutoConfigureMockMvc One of the ways you can disable Spring Security filters in your tests, is to use the @AutoConfigureMockMvc annotation. @AutoConfigureMockMvc annotation can be applied to a test class to enable…
Read More Disable Spring Security Configuration for @WebMvcTestYou will use @MockBean annotation to create and automatically add mocks to Spring ApplicationContext. In this tutorial, we will look at different ways you can use @MockBean annotation to create mocks. If you are testing your application with JUnit and Mockito, then there are many other useful tutorials you will find on the Testing Java Code…
Read More @MockBean Annotation ExampleThis tutorial will teach you how to enable Mockito framework in your Spring Boot project and in addition to that, you will also learn how to use @Mock and @InjectMocks annotations to create mock objects and inject those mock objects into the class under test. If you are very new to Mockito, please consider reading…
Read More Getting Started with Mockito @Mock and @InjectMocksIn this tutorial, I am going to share with you how to make your JUnit tests run in order. And if you are interested to learn more about testing your RESTful Web Services with JUnit and Rest Assured check this list of tutorials: Building and Testing RESTful Web Services. By default, test classes and methods will…
Read More How to Run JUnit Tests in OrderIn this tutorial, you will learn about a way or a pattern to structure your code inside of a unit test method. If you follow this pattern consistently, then it will be easier to read and understand code inside of your test methods. This pattern is widely used by many developers and is know as Arrange, Act, Assert(AAA).…
Read More How to Structure Unit Test Method?This tutorial will teach you how to migrate from the depricated WebSecurityConfigurerAdapter towards the content-based security configuration. Spring Security allowed customizing HTTP security by extending a WebSecurityConfigurerAdapter class. This customization included user authorization, user authentication, etc. But in Spring Security 5.7.0-M2 the WebSecurityConfigurerAdapter is deprecated. This is because Spring Framework developers encourage users to move…
Read More (Solved!) Deprecated WebSecurityConfigurerAdapterIn this tutorial, you will learn how to create a new Spring Boot project using Spring Initializr tool. What is String Initializr? Spring Initializr is a tool that helps you easily generate a new Spring Boot project and download it in a ZIP file. You can then open the created project in any Java development environment of your…
Read More Create Spring Boot Project with Spring Initializr