All posts by Java Development Journal

What is Spring security

A quick introduction to Spring security. Learn What is spring security? and why we need it and what is the importance of Spring security.

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Spring BeanPostProcessor

A quick guide to the Spring BeanPostProcessor.how Spring bean post processor works and how to use this feature for the custom modification.

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Iterable to Stream in Java

A quick post to convert Java Iterable into a Stream.Learn how to convert Iterable in to Java 8 stream using the StreamSupport.stream() method.

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Spring Boot Session Listener

A quick guide to the Spring Boot HttpSessionListner. Learn when an how to customize httpsession listern in your Spring Boot application.

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The Difference Between map() and flatMap()

A quick guide to the difference between map and flatMap in Java. Learn what are the differences between map and flatMap and when to use map vs flatMap.

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