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Copy Specific Fields via Spring BeanUtils.copyProperties Example

1. Introduction In this example, I will demonstrate all the available methods to copy specific fields via BeanUtils.copyProperties in a Spring application. The Spring Framework’s BeanUtils class...

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MapStruct: Map Source Object To Target List Example

Mapping between objects is a common requirement in Java applications, especially when transforming DTOs to Entities or vice versa. MapStruct simplifies this process by generating type-safe mappers at...

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Beyond REST: GraphQL Federation in Spring Boot: Build Scalable APIs with Apollo

While REST has long dominated API design, GraphQL Federation is emerging as a powerful alternative for scalable, type-safe microservices architectures. Unlike monolithic GraphQL APIs, federation allows...

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JVM Warmup Optimization: Cutting Startup Time for High-Throughput Apps

The JVM’s just-in-time (JIT) compilation delivers peak performance—but only after warming up. For low-latency systems (serverless, real-time trading, microservices), slow warmup means: Higher tail...

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How to Reuse PreparedStatement in Java

Java Database Connectivity (JDBC) remains the standard foundation for interacting with relational databases in Java applications. One of its key components is the PreparedStatement interface, which...

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Java vs. Rust vs. Go in Systems Programming: A Comparative Analysis

While Java remains dominant in enterprise applications, cloud services, and Android development, its position in systems programming is being challenged by Rust and Go. Each language has distinct...

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Mockito Stub Getter & Setter Example

Mockito offers a straightforward approach to mocking method calls in unit tests, helping us isolate components and validate their behavior with ease. While mocking getter methods is usually simple,...

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The Erosion of Trust: How Oracle’s Monetization Strategy Threatens Java’s Future

For decades, Java stood as the bedrock of enterprise software development – a reliable, open ecosystem that powered everything from banking systems to Android apps. However, Oracle’s increasingly...

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How to Use Google Translate API with Java

The Google Cloud Translation API is a powerful tool that enables developers to programmatically translate text between thousands of language pairs, detect languages, and customize translation behavior...

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AI-Generated Java: Future or Tool?

The rise of AI-powered coding assistants like GitHub Copilot, Amazon CodeWhisperer, and Google’s Studio Bot is transforming how Java developers work. While some fear these tools could replace human...

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