Core Java
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Compare Long Collections & Sort Example
Sorting is a fundamental operation in Java programming, especially when dealing with collections of data. When working with lists of…
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Maven vs. the World: Why Gradle Won (But Maven Still Rules in Banking)
In the Java ecosystem, the build tool debate often generates strong opinions. As Martin Fowler, renowned software architect, observes: “Maven’s…
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The Forbidden Maven Cache: How to Break CI in 10 Ways
The .m2 cache is Maven’s silent guardian—until it turns into your worst enemy. A corrupted cache can derail builds, waste hours of…
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Mocking JDBC Components in Unit Tests with Mockito
Unit testing JDBC-based code can be challenging due to its reliance on live database interactions. Using Mockito, we can mock…
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Mockito vs. Mocking the JVM: Bytecode Manipulation for Ultimate Test Control
Mockito is the go-to mocking framework for Java developers, but it has limits—it can’t mock final classes, static methods, or…
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Managing Secret Rotation in Java Microservices with HashiCorp Vault and Kubernetes
In modern cloud-native applications, secrets like database passwords, API keys, and TLS certificates are everywhere. Yet, manually rotating these credentials…
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cURL Request to HTTP Request Conversion Example
1. Introduction The Client URL (cURL) is a tool for transferring data from or to a server using URLs. It…
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Sub-10ms Startup: Quarkus vs. Spring Native – The Race to Instant Java
In today’s cloud-native world, startup time is the new throughput. Serverless computing, Kubernetes scaling, and edge deployments demand applications that launch…
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Java Stream vs. Flux.fromIterable()
In Java, both Stream and Flux.fromIterable() allow us to process sequences of data in a functional style. However, they are…
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