Java
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Spring Boot JpaRepository Example
Hello readers let us delve into understanding the Spring Data JPA module. 1. JpaRepository interface Spring Data JPA provides a…
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Lucene MMapDirectory and ByteBuffersDirectory Examples
Apache Lucene is a powerful search library written in Java. It provides various directory implementations for storing index files, such…
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MapStruct With Inheritance Examples
1. Introduction MapStruct is an open-source, compile-time code generator, and annotation processor. It simplifies the implementation of mappings between different…
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Unit Testing of ExecutorService in Java With No Thread sleep
Unit testing concurrent code, especially code utilizing ExecutorService, presents unique challenges due to its asynchronous nature. Traditional approaches often involve…
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Java Stream contains, containsAny and containsAll examples
The Java 8 Stream API provides various methods for operating on sequences of elements, such as filtering, mapping, and collecting.…
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Java Object Mapping Made Easy: A Guide to MapStruct
Juggling data conversions between different object structures can be a tedious and error-prone task in Java applications. Traditionally, developers write…
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Spring MockMVC Get JSON As Object
1. Introduction Spring MockMVC is the Spring MVC testing framework which performs Spring MVC request handling and response asserting via…
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Casting Maps into Complex Objects in Java
In Java, there is often a need to convert a Map to a complex object (POJO – Plain Old Java…
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Preventing IndexOutOfBoundsException with List.subList() in Java
The List.subList() method in Java allows you to create a view of a portion of a list, defined by a…
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