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How to build custom queries with Spring Data Reactive MongoDB

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Implement pattern matching in Java with Vavr library

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Write assertions for Java LocalDate/LocalDateTime with AssertJ library

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Common assertions for Java collections in AssertJ

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Guide to JavaScript data structures (arrays, sets, maps)

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Introduction to nested classes in Java

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Introduction to Java streams

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Introduction to load testing with Apache JMeter

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Java Optional & Vavr Option: An essential introduction

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A bit about marker interfaces in Java

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A small introduction to Java 11's HttpClient

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How to start with unit testing in Java: A complete introduction to JUnit 5

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