JSON Serialization - How to Preserve the Type with Jackson

Learn how to preserve type information during JSON serialization and deserialization using Jackson. This guide explains best practices, including the use of @JsonTypeInfo and enabling default typing, to maintain object structure while working with polymorphic types in Java. Read More

Java - How to create Immutable Classes in Java

Discover how to create immutable classes in Java with step-by-step guidance, key principles, and best practices for designing secure and robust objects. Read More

Spring MVC - How to handle errors from a controller?

In a web application, it is very important to handle errors. Proper error handling would protect the application from several vulnerabilities, including Security Misconfiguration . In this post, you will see how you can handle exceptions that arise out of a Spring MVC based application. Read More

Java - How to find the IP Address of a host in Java ?

In Java, if you are looking to resolve an IP Address from the given hostname, then you can leverage the capabilities provided by InetAddress . It belongs to the "java.net" package and provides various utilities related to resolving addresses and IPs. Read More

Spring - Localization with Spring

Localization enables applications to cater to users of different locations and languages. Spring, as usual, has support for this aspect as well. Before jumping into what Spring has to offer, let's explore what we get from Java itself. Read More

Java - Deep Copy Java Objects through Serialization

When it comes to deep copy or cloning an object, the first thing that comes to mind is to override the clone() method and set each field manually. This can be pretty cumbersome to implement for complex objects or if you have to do this for a lot of them. Read More

Jackson - JSON Property Name Customization in Jackson using PropertyNamingStrategy

Jackson is one of the most popular java libraries for serialization/deserialization of POJOs to/from JSON. By default, Jackson derives the JSON element names from the getter/setter method names of the POJO. e.g. getActorName() is translated to actorName in the resulting JSON. Read More