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Stub Getter and Setter in Mockito
1. Introduction While Mockito provides an excellent way to avoid initializing objects we don’t want to initialize, sometimes its out-of-the-box functionality is limiting. In this tutorial, we’ll...
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Java Weekly, Issue 586 – Java 24 is here!
1. Spring and Java >> Java 24 Rolls Out Today! Find Out Why It’s Aptly Named [foojay.io] Java 24 is here with exactly 24 JEPs :). Let’s have a closer look at the new features and changes it adds,...
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Send and Receive Serialized Object in Socket Channel
1. Introduction In this tutorial, we’ll explore how to send and receive serialized objects using Java’s SocketChannel from the java.nio package. This approach enables efficient, non-blocking network...
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Management Interface in Quarkus
1. Introduction As cloud technologies evolve, deploying and managing applications has become more seamless. However, this shift has also increased the need for robust operational data to monitor and...
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Session/Cookie Management in Apache JMeter
1. Introduction In this tutorial, we’ll learn how JMeter manages sessions and cookies, set up a test plan that logs in to an application, accesses protected resources, and logs out. Along the way,...
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Mocking JDBC for Unit Testing
1. Overview In this tutorial, we’ll discuss testing code that uses JDBC objects to interact with the database. Initially, we’ll use Mockito to stub all the java.sql objects involved in acquiring a JDBC...
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Introduction to OSHI
1. Overview In this tutorial, we’ll learn something interesting that could help us know our system. Whenever we think about checking CPU usage, memory status, or disk space in Java, we might ask...
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Reusing a PreparedStatement Multiple Times in Java
1. Overview In this tutorial, we’ll be looking at how to use PreparedStatements efficiently. A PreparedStatement is an object that stores a precompiled SQL statement for us. We can then use this object...
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Java Naming Conventions
1. Overview In this tutorial, we explore the essential Java naming conventions that help us write clear, maintainable, and consistent code. Adopting these conventions is crucial for reducing ambiguity...
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Monitor Non-Heap Memory Usage of a JVM
1. Overview Using a Java application, we sometimes face issues with memory consumption. In general, we can categorize all problems into those based on heap memory usage and those based on non-heap...
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Closing Scanner in Java
1. Introduction When we use Java’s Scanner class to read input from System.in, some IDEs may warn about a potential resource leak. For instance, if we don’t explicitly close the Scanner we may face a...
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Open Multiple Projects in the Same Window in IntelliJ IDEA
1. Introduction Nowadays, working with multiple projects is very common. Opening multiple instances of the IDE for each project isn’t very convenient and also consumes a lot of system resources. In...
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Java Weekly, Issue 587
1. Spring and Java >> Performance Improvements in JDK 24 [inside.java] The “under-the-hood” changes in JDK 24 are easy to miss among all the new features and improvements. Take a look at a...
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Output the Version Number to a Text File Using Maven
1. Overview In Maven-based Java projects, outputting the project version number to a text file is often necessary. This is useful for version tracking, logging, and ensuring consistency across...
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Integrating WireMock with Spring Boot
1. Introduction Testing external dependencies such as REST APIs can be challenging when developing web applications. Making network calls is slow and unreliable, as third-party services might be...
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EnableEurekaClient vs EnableDiscoveryClient: Which to Use?
1. Introduction In this tutorial, we’ll examine what distinguishes @EnableEurekaClient from @EnableDiscoveryClient. Both are annotations used when working with the service registry in Spring Boot while...
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Java API for GitHub using GitHub-API
1. Introduction In this article, we’re going to have a look at the GitHub API For Java library. This provides us with an object-oriented representation of the GitHib API, allowing us to easily interact...
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Connect Java Spring Boot to Db2 Database
1. Overview IBM Db2 is a cloud-native, relational database system that also supports semi-structured data such as JSON and XML. It’s designed to handle large volumes of data at low latency. In this...
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Java Weekly, Issue 588
1. Spring and Java >> Doing away with SELECT NEW [in.relation.to] Hibernate 6 simplifies the syntax for returning a subset of attributes into a Java class. This is also a proposal for the Jakarta...
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Synchronous Communication With Apache Kafka Using ReplyingKafkaTemplate
1. Overview Apache Kafka has established itself as one of the most popular and widely used messaging systems for building event-driven architectures, where one microservice publishes a message to a...
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