JavaDevTech

Estimated reading time: 3 minutes << Go to Question 1 Go to Question 3 >> AWS Certified Solutions Architect Associate Practice Exams-1-Question-2 As you are in the practice mode so, no time restrictions, no scoring. We suggest you to – – Read the question carefully.– Identify and focus on key-words.– Apply design thinking.– Identify and ignore options which are just distractors. Let’s…

Estimated reading time: 5 minutes AWS Certified Solutions Architect Associate Practice Exams-1-Question-1 As you are in the practice mode so, no time restrictions, no scoring. We suggest you to – – Read the question carefully.– Identify and focus on key-words.– Apply design thinking.– Identify and ignore options which are just distractors. Let’s resolve the following question, Good…

Estimated reading time: 7 minutes Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available, in-memory caching service specifically designed to enhance Amazon DynamoDB performance. It is ideal for read-heavy applications that require extreme speed, such as real-time gaming, bidding platforms, and high-traffic retail sites. Let us deep dive Performance: A fully managed, in-memory…

Estimated reading time: 14 minutes In the fast-evolving landscape of cloud-native and serverless applications especially microservices, runtime efficiency is paramount. Performance requirements might expect some microservices to start and be available without any measurable delays. Due to startup delays inherent in the Java platform, it is difficult to have applications booting with sub-second…

Estimated reading time: 5 minutes Introduction: The Cold Start Problem in Modern Java Java has long been celebrated for its runtime performance thanks to Just-In-Time (JIT) compilation. However, in the era of containerization, serverless functions, and microservices, slow startup and warm-up times have become significant drawbacks. In response, the Java community is increasingly adopting…

Estimated reading time: 4 minutes In the ever-evolving landscape of Java, language enhancements often aim to balance expressiveness with safety and backward compatibility. JEP 513: Flexible Constructor Bodies, a key proposal under Project Valhalla, brings long-awaited improvements to Java’s constructor model in JDK 25. It allows more expressive and modular constructor logic by relaxing the…

Estimated reading time: 10 minutes ​Structured concurrency in Java, introduced as a preview feature in Java 21 as part of Project Loom, an ongoing OpenJDK project comprising Virtual Threads, aims to simplify multithreaded programming by treating groups of related tasks as single units of work. This approach enhances code readability, reliability, and maintainability by ensuring that concurrent…

Estimated reading time: 10 minutes ​Structured concurrency in Java, introduced as a preview feature in Java 21 as part of Project Loom, an ongoing OpenJDK project comprising Virtual Threads, aims to simplify multithreaded programming by treating groups of related tasks as single units of work. This approach enhances code readability, reliability, and maintainability by ensuring that concurrent…

Estimated reading time: 6 minutes Migrating Spring AI M7 to M8? In below article I am providing the detail about the things to be considered if you are migrating. Please go through to know about the new features, deprecations and breaking changes. Introduction I am excited to inform about the release of Spring AI 1.0.0 Milestone 8 (M8), a pivotal step in bringing seamless artificial…

Estimated reading time: 2 minutes Spring Cloud 2025.0.0-RC1 release has updates in several modules. These include Spring Cloud Config, Spring Cloud Gateway, Spring Cloud Task, Spring Cloud Stream, Spring Cloud Function & More. Following article details the changes in the release and what modules are affected. Info About Release Release TrainSpring Cloud 2025.0.0 Release Candidate 1…

Imagine you’re building an e-commerce platform and using an external payment processor like Stripe to collect payments from users. Once a user completes a payment, your system needs to: Mark the order as paid Send an invoice Notify the warehouse to start packing But here’s the challenge:Stripe operates on its own infrastructure. Your system doesn’t control it. So how do you know instantly…

When you open your favorite social media app like Instagram, Facebook, LinkedIn or Twitter, you’re instantly shown a personalized stream of posts. These can include text updates, photos and videos from the people and pages you follow or from posts your friends have engaged with. This seamless and engaging experience is made possible by the news feed system, one of the core features of any modern…

One of the things that make databases truly powerful is their ability to protect your data even in the face of unexpected failures. Whether the database server crashes, restarts, or there’s a sudden power outage, you can trust that your committed data won’t simply disappear. This promise is known as Durability — one of the four essential ACID properties of databases. But, what does it actually…

Latency is the time it takes for a system to respond to a user’s action. In simple terms, it’s the delay between: When a user makes a request And when they receive a response Even small delays can have a significant impact. To put it into perspective: Amazon estimates that every 1-second increase in latency could cost them $1.6 billion in annual sales. On the flip side, low latency means…

Sharding and partitioning are two of the most commonly confused concepts in system design. At first glance, they may seem similar, and people often use them interchangeably. But they are not the same. Both are techniques to divide and scale large databases; however, they differ in how the data is divided. Simply put, partitioning typically means breaking down database tables within a single…

In Java have you ever heard about ‘Escape Analysis‘? What does escape analysis mean? What is it related to in Java? Well, It means performance!! Let’s discuss in detail how it affects. Escape analysis was introduced in Java Standard Edition 6. When enabled, it can significantly improve the performance of Java applications by reducing the overhead of object allocation and garbage…