Core Java
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Test Everything: Advanced Unit and Integration Testing with JUnit 5
Software testing has evolved far beyond the simple “write a test for each function” mindset. With modern architectures—microservices, cloud deployments,…
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Serverless Java: Writing AWS Lambdas That Don’t Slow You Down
AWS Lambda has transformed how we deploy and scale applications, but Java developers often face unique challenges in the serverless…
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Observability Wins: Applying O11y Techniques to Monitor Java in Production
In modern software development, deploying an application is just the beginning. The real challenge comes afterward: ensuring your system runs…
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Java Reflection: BeanUtils vs PropertyDescriptor
1. Introduction Java reflection Beans Property API and Apache Commons BeanUtils are two APIs that provide Beans Property APIs to…
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Beyond REST: GraphQL APIs in Java for Flexible Data Access
For years, REST APIs have been the standard for building backend services in Java. They’re simple, well-understood, and widely adopted.…
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Find Null or Empty Strings in a Java List Example
1. Introduction Finding Null or empty Strings in a Java List is a common operation because a list can contain…
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Concurrency Unleashed: Building Lock-Free Java Systems That Scale
Modern applications demand high performance and scalability, especially in an era where multi-core processors are the norm. Traditional concurrency control…
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JSpecify Null Safety Example
Null references remain a major source of runtime errors in Java. Over the years, the ecosystem produced many competing annotation…
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Function pointer style in Java
In languages like C and C++, function pointers allow direct reference to a function, enabling callbacks, event handling, and flexible…
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