eBook – Jackson – NPI EA (cat=Jackson)
eBook – RwS Java – NPI EA (cat=Java)
eBook – HTTP Client – NPI EA (cat=Http Client-Side)
eBook – Maven – NPI EA (cat = Maven)
Course – RwS – NPI EA (cat=REST)

Explore Spring Boot 3 and Spring 6 in-depth through building a full REST API with the framework:
Partner – Lightrun – NPI EA (cat=Spring)

We rely on other people’s code in our own work. Every day.
It might be the language you’re writing in, the framework you’re building on, or some esoteric piece of software that does one thing so well you never found the need to implement it yourself.
The problem is, of course, when things fall apart in production - debugging the implementation of a 3rd party library you have no intimate knowledge of is, to say the least, tricky.
Lightrun is a new kind of debugger.
It's one geared specifically towards real-life production environments. Using Lightrun, you can drill down into running applications, including 3rd party dependencies, with real-time logs, snapshots, and metrics.
Course – LS – NPI EA (cat=Spring)
eBook – RwS – NPI EA (cat=Spring MVC)
Partner – Machinet – NPI EA (cat = Testing)

The AI Assistant to boost Boost your productivity writing unit tests - Machinet AI.
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Partner – Bellsoft – NPI EA (cat = Spring/DevOps)

Looking for the ideal Linux distro for running modern Spring apps in the cloud?
Meet Alpaquita Linux: lightweight, secure, and powerful enough to handle heavy workloads.
This distro is specifically designed for running Java apps. It builds upon Alpine and features significant enhancements to excel in high-density container environments while meeting enterprise-grade security standards.
Specifically, the container image size is ~30% smaller than standard options, and it consumes up to 30% less RAM:
Course – LSS – NPI EA (cat=Spring Security)

Yes, Spring Security can be complex, from the more advanced functionality within the Core to the deep OAuth support in the framework.
I built the security material as two full courses - Core and OAuth, to get practical with these more complex scenarios. We explore when and how to use each feature and code through it on the backing project.
You can explore the course here:
Partner – Aegik AB – NPI EA (tag = SQL)

Slow MySQL query performance is all too common. Of course it is. A good way to go is, naturally, a dedicated profiler that actually understands the ins and outs of MySQL.
The Jet Profiler was built for MySQL only, so it can do things like real-time query performance, focus on most used tables or most frequent queries, quickly identify performance issues and basically help you optimize your queries.
Critically, it has very minimal impact on your server's performance, with most of the profiling work done separately - so it needs no server changes, agents or separate services.
Basically, you install the desktop application, connect to your MySQL server, hit the record button, and you'll have results within minutes:
Partner – DBSchema – NPI EA (tag = SQL)

DbSchema is a super-flexible database designer, which can take you from designing the DB with your team all the way to safely deploying the schema.
The way it does all of that is by using a design model, a database-independent image of the schema, which can be shared in a team using GIT and compared or deployed on to any database.
And, of course, it can be heavily visual, allowing you to interact with the database using diagrams, visually compose queries, explore the data, generate random data, import data or build HTML5 database reports.
Course – LSD – NPI EA (tag=Spring Data JPA)

Spring Data JPA is a great way to handle the complexity of JPA with the powerful simplicity of Spring Boot.
Get started with Spring Data JPA through the guided reference course:
Course – LS (cat=Java)
Get started with Spring and Spring Boot, through the Learn Spring course:
> CHECK OUT THE COURSE
1. Overview
This is a guide to working with XML in Java.
We’ll go over the most common Java XML processing libraries – for both parsing and binding.
2. DOM Parsers
Simply put, a DOM parser works on the entire XML document, loads it into memory and constructs a tree representation of the document.
2.1. Useful Resources
- Working with XML Files in Java Using DOM Parsing
- Write an org.w3.dom.Document to a File
- Pretty-Print XML in Java
- Intro to XPath with Java
- Modifying an XML Attribute in Java using dom4j
3. SAX Parser
A SAX parser is an event-based parser – it parses the XML document using callbacks without loading the whole document into memory.
3.1. Useful Resources
4. StAX Parser
A StAX Parser is median between DOM and SAX parser.
4.1. Useful Resources
5. JAXB
JAXB – Java Architecture for XML Binding – is used to convert objects from/to XML.
JAXB is a part of the Java SE platform and one of the APIs in Jakarta EE.
5.1. Useful Resources
6. XStream
XStream is a simple library to serialize objects to/from XML.
6.1. Useful Resources
- XStream User Guide: Converting XML to Objects
- XStream User Guide: Converting Objects to XML
- Remote Code Execution with XStream
7. Jackson XML
Jackson XML is an extension of the Jackson JSON processor for reading and writing XML encoded data.
Jackson XML is an extension of the Jackson JSON processor for reading and writing XML encoded data.
7.1. Useful Resources
- Official Website
- Github
- Jackson XML databind Wiki
- Jackson XML annotations
- XML Serialization and Deserialization with Jackson
- Convert XML to JSON Using Jackson
8. Apache CXF Aegis
Aegis is a data binding or a subsystem that can map between Java objects and XML documents described by XML schemas.
8.1. Useful Resources
9. JiBX
JiBX is a tool for binding XML data to Java objects. It provides solid performance compared to other common tools such as JAXB.
9.1. Useful Resources
10. XMLUnit 2
XMLUnit 2.x is a powerful library that helps us test and verify XML content, and comes in particularly handy when we know exactly what that XML should contain.
10.1. Useful Resources
11. Conclusion
This was a quick intro to the XML ecosystem in Java.
Use this as a guide to learn more about doing XML work and getting a high-level view of the Java XML landscape.
We also have a collection of articles on this topic, if you wish to see links to all our XML content in one place.