Java
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Handling Null Values with MapStruct
MapStruct is a compile-time code generation framework that simplifies mapping between Java beans by eliminating boilerplate conversion code and relying…
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Metaprogramming as Art: The Aesthetics of Code That Writes Code
There’s something magical about code that writes itself. Metaprogramming—the practice of writing programs that manipulate other programs—sits at the intersection…
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Transposing a double[][] Matrix in Java
Matrix manipulation is common in Java applications, from data analytics to machine learning, and matrix transposition is one of the…
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Java PostgreSQL Query Cancellation Explained
PostgreSQL is known for its robustness, performance, and strong support for concurrency. However, while working with long-running queries, background jobs,…
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The Philosophy of Null: Why Java’s Billion-Dollar Mistake Isn’t Actually a Mistake
In 2009, Tony Hoare apologized for inventing null references, calling it his “billion-dollar mistake.” The programming world nodded in agreement.…
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Accessing Resources in Quarkus Native Images
Quarkus makes it easy to build ultra-fast native executables using GraalVM, but resource handling behaves differently compared to a traditional…
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Joining Unrelated Tables with JPA Criteria API
In real-world enterprise applications, it is common to encounter database tables that do not have explicit JPA relationships (such as…
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How to Fix Hibernate’s token ‘*’ SyntaxException
Hibernate’s JPQL (Java Persistence Query Language) provides an object-oriented abstraction over SQL, allowing us to query entities instead of database…
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Fixing java.io.NotSerializableException
The java.io.NotSerializableException is a common runtime exception in Java that occurs during the serialization process. Serialization is the mechanism of…
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