Introduction to Jakarta EE Frequently Asked Questions (FAQs)

Jakarta EE (formerly Java EE)  is a software development platform built on top of the Java Standard Edition, for creating modern applications of all types and sizes for the cloud or in-house. It has gone through a number of evolutions to its present Jakarta EE incarnation. The goal of this blog post is to answer commonly and frequently asked questions about Jakarta EE and enterprise Java software development in general. There are a number of old preconceived notions out there about the platform. This blog post seeks to shed light on a number of these notions within the context of the current platform. 

Welcome to our monthly roundup of the best content in the Java, Jakarta EE, DevOps, cloud computing, open source and enterprise software space!

During deployment of Jakarta EE applications to the Payara Server, all the xml files (e.g. web.xml, persinstence.xml) are verified against its schema.

Payara Platform includes all standard Jakarta EE schema, so there is typically no reason to download external schema to check against xml files. However, if the application uses external schema, in very rare cases, there may be an error during deployment. In this blog, I describe a quick fix to avoid this. 

The Representational State Transfer or RESTful architecture is a stateless, HTTP based communication standard for modern applications. It was originally proposed by Dr. Roy Fielding in hisPhD thesis. It has, over the years, become the default, programming language-agnostic means of enabling machine-to-machine communication. An application written in the Django framework in Python can have REST resources that are consumed by another application written in Java with Jakarta EE. Similarly, a Jakarta EE application can create resources that can be consumed by a C# application.  

Low on time and want to know what an 'application server' really is?

We offer our explanation. This video covers the difference between application servers and web servers, what an application server can do to make your life as a developer easier, and more, all in less time than your average pop song!

This is a high-level view that might be helpful to pass on to managers and procurement teams who aren't sure what an application server is.

JavaPro has created a training course on how to develop modern cloud-native microservices with Payara Micro and MicroProfile.

We have free tickets available, usually worth €1,690 each! 

You may have heard about our brand-new Payara Cloud product. 

Payara Cloud automates the infrastructural tasks required when moving a Jakarta EE application to a cloud deployment model, and is therefore a 'serverless' option. 

Why is software testing so important? Firstly, because we are all susceptible to making mistakes.
Secondly, because the sooner we find bugs and fix them, the cheaper the fix!

The November 2022 Payara Platform release is here and ALL versions are getting a new release!

Payara Platform Community 6.2022.1 is the first stable release of the Payara 6 Community stream. This is certified against the Jakarta EE 10 Platform, Web Profile, and Core Profile. Payara 6 will now be the updated, current version of Payara Platform Community. 

Payara Platform Enterprise 5.45.0 is also out, containing 5 bug fixes, 1 security fix and 2 improvements.

Payara Platform Community 5.2022.4 has been released today as the penultimate Payara 5 Community release, and there is also a release of Payara Platform 4 for Enterprise customers.

All releases contain an important fix for a 0-day vulnerability. 

Read more details below!

Welcome to our monthly roundup of the best content in the Java, Jakarta EE, DevOps, cloud computing, open source and enterprise software space!