Fix ClassCastException Ljava.lang.Object to Ljava.lang.Integer
In Java, the ClassCastException occurs when we attempt to cast an object to a subclass of which it is not an instance. Let us delve into understanding how to fix ClassCastException in Java,...
View ArticleJava Execute JAR File Example
A JAR (Java Archive) file is a packaged collection of Java classes and resources that can be executed as a standalone application if it contains a MANIFEST.MF file specifying the main class. Let us...
View ArticleJava Custom Linked List Implementation
Arrays store elements in a contiguous memory block, whereas a linked list spreads its nodes across different memory locations. Each node holds both data and a reference to the next, allowing efficient...
View ArticleJava Maven OWASP Dependency-Check Example
With the increasing use of open-source libraries, ensuring software security has become a critical aspect of development. Many applications rely on third-party components, making them vulnerable to...
View ArticleAvro Schema From Java Class Example
Apache Avro is a data serialization system that is compact, fast, and ideal for distributed applications. Let us delve into understanding how a Java class can generate an Avro schema. 1. What is Avro?...
View ArticleExpert Tips for Selecting the Best Mobile App Development Service for Your Needs
source: medium.com Choosing a contractor is a real headache. You need to weigh everything carefully, avoid mistakes, and make the right call, or the whole project could fall apart. The success of the...
View ArticleJDK_JAVA_OPTIONS vs JAVA_TOOL_OPTIONS
1. Introduction JDK_JAVA_OPTIONS and JAVA_TOOL_OPTIONS are environment variables used to pass Java Virtual Machine (JVM) options to configure the JVM without modifying the scripts. In this article, I...
View ArticleJava REST Swagger vs. HATEOAS
In modern RESTful API development, API documentation and hypermedia-driven APIs play a crucial role. Two key concepts that developers often use are Swagger and HATEOAS. While Swagger helps document...
View ArticleJava String Slicing Example
Python provides a powerful and concise way to slice Strings using simple syntax. However, Java does not have built-in String slicing like Python. Let us delve into how to implement String slicing in...
View ArticleMock JWT Decoding with JwtDecoder in JUnit Tests
JSON web tokens (JWTs) are widely used for microservices and Spring security authentication. When testing Spring applications, mocking JWT decoding is often necessary. Let us delve into understanding...
View ArticleGetting Started with ActiveJ
ActiveJ is a lightweight, high-performance Java framework designed for building scalable and efficient applications. It provides an alternative to traditional Java frameworks like Spring and Micronaut...
View ArticleJIT vs. AOT: Choosing GraalVM Native Image for Java
Java applications traditionally rely on Just-In-Time (JIT) compilation for performance optimizations. However, with the advent of GraalVM’s Native Image, developers can leverage Ahead-Of-Time (AOT)...
View ArticleZero-Downtime Deployments in Spring Boot with Kubernetes and Istio
Ensuring zero downtime during deployments is crucial for modern applications, especially in microservices architectures. Kubernetes, combined with Istio, provides powerful strategies such as canary...
View ArticleUsing LangChain4j in Micronaut
LangChain4j is a Java library that simplifies working with LLMs, enabling us to create AI-driven applications with minimal complexity. By leveraging LangChain4j, we can build applications that interact...
View ArticleSpring Boot Pkl Example
Pkl is a configuration-as-code language developed by Apple, blending the simplicity of static formats like JSON with the expressiveness of programming languages. It aims to enhance configuration...
View ArticleEvent Sourcing with Axon Framework in Spring Boot
Event Sourcing is a powerful architectural pattern that captures all changes to an application state as a sequence of events. These events are stored in an event log, which can be replayed to...
View ArticleOpenCV Java Object Detection
In this article, OpenCV Java Object Detection demonstrates how to identify specific objects in a real image using OpenCV DNN(Deep Neural Network) module, powered by the OpenCV inference engine....
View ArticleServerless Spring Boot with Knative on Kubernetes
Modern applications demand scalability, efficiency, and flexibility, especially when handling unpredictable workloads. Traditionally, Kubernetes offers robust orchestration for containerized...
View ArticleExploring Quarkus WebSockets
This article explores Quarkus WebSockets Next, a powerful way to enable real-time communication in Quarkus applications. Let us delve into understanding Java Quarkus WebSockets next. 1. Introduction...
View ArticleSpring Batch Composite Item Reader Example
Batch processing plays a crucial role in applications that handle large datasets, ensuring efficient data ingestion, transformation, and storage. In Spring Batch, the ItemReader component is...
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