# Introduction

Java EE 8 brings a plenty of new features which are valuable to build modern applications.

I have spent some time on updating myself to the newest Java EE 8 technology stack. This mini book is my learning notes when I refreshed my knowledge to Java EE 8.

## Audience

This book is not for the newbie of Java EE, and I also assume you know well about Java 8.

This book will not cover the existing content in Java EE 7. If you have experience with Java EE 7 and want to update to Java EE 8, this book is for you.

If you are new to Java EE or need a comprehensive guide of Java EE, I suggest you read the official [Java EE Tutorial](https://javaee.github.io/tutorial/) firstly.

> The new Jakarta EE tutorial is moved to <https://eclipse-ee4j.github.io/jakartaee-tutorial/toc.html>.

## About Jakarta EE 8

After Java EE 8 was released, Eclipse Foundation took over the responsibilities of developing Java EE, due to Java EE regulations, the new Java EE was renamed to Jakarta EE.

Jakarta EE 8 is the first version published by Eclipse Foundation, the APIs is totally compatible with the previous Java EE 8. To get started with Jakarta EE 8, go to [Kickstart a Jakarta EE 8 application](https://hantsy.github.io/jakartaee8-starter-boilerplate/) for more details.

> In this book, we use Java EE and Java EE maven architypes through the whole book, all codes are compatible with Jakarta EE 8.

I also created a repository to collect all useful Java EE 8/Jakarta EE 8 resources, check the latest [Awesome Java EE 8](https://github.com/hantsy/awesome-javaee8) checklist.

## Sample Codes

All sample codes used in this book are open-sourced on Github.

You can clone it into your local system and import them into your IDE and explore yourself.

```bash
git clone https://github.com/hantsy/ee8-sandbox
```

## About The Book

The book itself is open-sourced and [hosted on Github](https://github.com/hantsy/javaee8-by-example-gitbook), and it is synchronized automatically to Gitbook.io. You can read the book online.

Gitbook online version: <https://hantsy.gitbooks.io/java-ee-8-by-example/content/>

## Contribution

If you have some suggestions or find some issues (even grammar errors, I am a non-English guy), do not hesitate to file an issue on [Github issues](https://github.com/hantsy/javaee8-by-example-gitbook/issues) or send a pull request directly.