Vaadin 14.4.0
Vaadin consists of a set of web components, a Java web framework, configurable themes, tools and a set of app templates.
Visit vaadin.com to get started.
Support
Vaadin 14 is an LTS (long term support) version, which will be supported for 5 years after the GA (general availability) release. More details of our release model are available on our roadmap page.
Vaadin also provides commercial support and warranty.
New and Noteworthy Since 14.3
- Field helpers
- Slot below/above input fields for supplying additional information or content related to the field.
- Parallelized dev-mode startup
- Dev mode initialization and webpack build is run in a separate thread and a temporary page telling 'front-end build is ongoing' is shown until compilation is done. This speeds up the deployment time (as Java services like Hibernate can start in parallel) and fixes deployment timeout issues in IDEs
- Live Reload on frontend changes
- The browser automatically refreshes when files in the frontend folder are modified, allowing instant preview of JS and CSS changes.
Included Projects and Change Log
Vaadin includes the following projects. Release notes with detailed change logs for each project are linked below.
Projects marked as (Pro) are available for users with Pro or Prime subscriptions. Everything else is free and open source.
Components
- Vaadin Accordion (Flow integration 2.2.0, web component v1.2.0)
- Vaadin App Layout (Flow integration 2.2.0, web component v2.2.0)
- Vaadin Button (Flow integration 2.2.0, web component v2.4.0)
- Vaadin Checkbox (Flow integration 2.2.0, web component v2.5.0)
- Checkbox
- Checkbox Group
- Vaadin Combo Box (Flow integration 3.2.0, web component v5.4.0)
- Vaadin Context Menu (Flow integration 3.3.0, web component v4.5.0)
- Vaadin Custom Field (Flow integration 3.2.0, web component v1.3.0)
- Vaadin Date Picker (Flow integration 2.2.0, web component v4.4.0)
- Vaadin Date Time Picker (Flow integration 1.2.0, web component v1.4.0)
- Vaadin Details (Flow integration 2.2.0, web component v1.2.0)
- Vaadin Dialog (Flow integration 2.3.0, web component v2.5.2)
- Vaadin Form Layout (Flow integration 2.2.0, web component v2.3.0)
- Vaadin Grid (Flow integration 4.3.0, web component v5.7.4)
- Grid
- Tree Grid
- Grid Context Menu
- Vaadin Icons (Flow integration 2.1.0, web component v4.3.1)
- Vaadin Item (web component v2.3.0)
- Vaadin List Box (Flow integration 2.3.0, web component v1.4.0)
- List Box
- Multi Select List Box
- Vaadin Login (Flow integration 2.2.0, web component v1.2.0)
- Vaadin Menu Bar (Flow integration 1.2.0, web component v1.2.0)
- Vaadin Notification (Flow integration 2.2.0, web component v1.6.0)
- Vaadin Ordered Layout (Flow integration 2.3.0, web component v1.4.0)
- Horizontal Layout
- Vertical Layout
- Flex Layout
- Vaadin Progress Bar (Flow integration 2.2.0, web component v1.3.0)
- Vaadin Radio Button (Flow integration 2.2.0, web component v1.5.1)
- Radio Button
- Radio Button Group
- Vaadin Select (Flow integration 2.2.0, web component v2.4.0)
- Vaadin Split Layout (Flow integration 2.2.0, web component v4.3.0)
- Vaadin Tabs (Flow integration 2.2.0, web component v3.2.0)
- Vaadin Text Field (Flow integration 2.3.0, web component v2.8.0)
- Text Field
- Text Area
- Password Field
- Big Decimal Field
- Email Field
- Integer Field
- Number Field
- Vaadin Time Picker (Flow integration 2.3.0, web component v2.4.0)
- Vaadin Upload (Flow integration 2.3.0, web component v4.4.0)
- Vaadin Board (PRO) (Flow integration 3.2.0, web component v2.2.0)
- Vaadin Charts (PRO) (Flow integration 7.1.1, web component v6.3.1)
- Vaadin Confirm Dialog (PRO) (Flow integration 2.2.0, web component v1.3.0)
- Vaadin Cookie Consent (PRO) (Flow integration 2.2.0, web component v1.2.0)
- Vaadin Crud (PRO) (Flow integration 2.3.0, web component v1.3.0)
- Vaadin Grid Pro (PRO) (Flow integration 2.2.0, web component v2.2.2)
- Vaadin Rich Text Editor (PRO) (Flow integration 2.3.0, web component v1.3.0)
Themes
Java Web Framework
- Vaadin Flow (2.4.0)
- Vaadin Spring Addon (12.3.1)
- Vaadin CDI Addon (11.2.1). You can use the add-on with V10+, see https://github.com/vaadin/cdi#using-with-vaadin-10 for instructions.
- Maven Plugin for Vaadin (14.4.0)
- Gradle plugin for Flow (1.2)
- Vaadin Multiplatform Runtime (Prime)
Tools
- Vaadin Designer (Pro) (Release notes)
- Vaadin TestBench (Pro) (6.4.0)
Getting Started with Vaadin 14
App starters
The best way to get started with Vaadin 14 is to go to https://vaadin.com/start and pick an app template for the technology stack you’re interested in.
Maven Archetypes
Maven is the de-facto build tool for Java web applications. Major IDEs also support Maven out of the box and most often you'll be using Maven via your favorite IDE. There is currently one Maven archetype available, the vaadin-archetype-application
which corresponds to the project base for Flow. The version of the archetype should match the platform version. After you have Maven installed, you can quickly create and run a Vaadin app with the following command:
mvn -B archetype:generate \
-DarchetypeGroupId=com.vaadin \
-DarchetypeArtifactId=vaadin-archetype-application \
-DarchetypeVersion=14.4.0\
-DgroupId=org.test \
-DartifactId=vaadin-app \
-Dversion=1.0-SNAPSHOT \
&& cd vaadin-app \
&& mvn package jetty:run
Manually changing Vaadin version for Java projects
Add the following dependency to dependencyManagement in pom.xml.
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>14.4.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
Note
If you are using any pre-release version of Flow 2.0 / Vaadin 14 in your project, remove the following files and directories when updating to 14.X:
- webpack-config.js
- package.json
- package-lock.json
- node_modules
Supported Technologies
Operating Systems
Development is supported with the following operating systems, for any OS version that supports either frontend development (Bower/npm as package manager) or Java 8
- Windows
- Linux
- macOS
Desktop Browsers
- Evergreen versions of the following browsers on :
- Chrome on these operating systems:
- Windows 7, Windows 8.1, Windows 10 or later
- macOS 10.9 (OS X Mavericks) or later
- 64-bit Ubuntu 14.04+, Debian 8+, openSUSE 13.3+, or Fedora Linux 24+
- Firefox on these operating systems
- Windows 7, Windows 8.1, Windows 10 or later
- macOS 10.9 (OS X Mavericks) or later
- Any Linux with the following packages:
- GTK+ 3.4 or higher
- GLib 2.22 or higher
- Pango 1.14 or higher
- X.Org 1.0 or higher (1.7 or higher is recommended)
- libstdc++ 4.6.1 or higher
- Latest Firefox ESR is supported (starting from Firefox ESR 68)
- Safari on macOS 10.9 (OS X Mavericks) or later
- Edge on Windows 10 or later
- Chrome on these operating systems:
- Internet Explorer 11 on Windows 7, Windows 8 and Windows 10
- (see Known Issues and Limitations below)
Mobile Browsers
The following built-in browsers in the following mobile operating systems:
- Safari starting from iOS 9
- Google Chrome evergreen on Android (requiring Android 4.4 or newer)
Development environments
Any IDE or editor that works with the language of your choice should work well. Our teams often use Eclipse, IntelliJ, Atom and Visual Studio Code among others (including Emacs and Vim).
Vaadin Designer supports the following IDEs:
- Eclipse Java EE versions: Photon, 2018 and 2019.
- JetBrains IntelliJ IDEA 2017, 2018 and 2019. Community or Ultimate edition.
Java
The server-side parts of Vaadin support version 8 and 11 of any JDK or JREs. More about Java support in FAQ.
Application Servers
Vaadin Flow requires Java Servlet API 3.1 (JSR-340) or newer. It is tested on:
- Apache Tomcat 8.0.x, 8.5, 9
- Apache TomEE 7.0.4->
- Oracle WebLogic Server 12.2.1
- IBM WebSphere Application Server 8.5 Liberty Profile and 9
- RedHat JBoss EAP 7
- WildFly 14, 15, 16
- Jetty 9.4
- Payara Server
- Payara Micro
Supported Node.js and npm versions
Node.js version 10.x for the npm mode.
npm version 5.6.0 or greater.
Breaking changes
This lists products that have breaking changes from V13
Flow
- Flow needs you to explicitly enable compatibility mode to keep running as before. You can read more about compatibility mode in 14 from the documentation.
App Layout 2
- AbstractAppRouterLayout was removed. AppLayout itself now implements RouterLayout.
- AppLayoutMenu and AppLayoutMenuItem were removed.
Migration guide available in vaadin.com/docs
ComboBox and Datepicker
- The clear button is now hidden by default. To make it visible, use setClearButtonVisible(true). (Note: if the value of the combo box is empty, the clear button is always hidden.)
Known Issues and Limitations
OSGi support
- OSGi feature is not supported under
npm mode
for the current Vaadin 14 versions, we are looking forward to fixing this in a near future. - OSGi feature is supported under
bower mode
, issues can be found from HERE
Performance
- Due to the limitation of web components polyfills, component rendering on IE11 and EdgeHTML can be upto 5-10 times slower than on other browsers
Flow
- The Template-in-Template feature has some limitations
- There are some issues in using Web Sockets as the Push channel in certain OSGi environments, but long polling works.
Components
- The dark theme preset does not work in IE11 when applied to the
<html>
element.
Migrating from Vaadin 8
Migrating from Vaadin 10-13
Reporting Issues
We appreciate if you try to find the most relevant repository to report the issue in. If it is not obvious which project to add issues to, you are always welcome to report any issue at https://github.com/vaadin/platform/issues.
A few rules of thumb will help you and us in finding the correct repository for the issue:
- If you encounter an issue when using the HTML/JS API of a component or the component renders incorrectly, the problem is likely in the web component. The web component repositories are named like https://github.com/vaadin/vaadin-button
- If you encounter an issue when using the Java API of a component, the problem is likely in the Flow integration of the web component. The Flow component integration repositories are named like https://github.com/vaadin/vaadin-button-flow
- If you encounter an issue with Flow which does not seem to be related to a specific component, the problem is likely in Flow itself. The Flow repository is https://github.com/vaadin/flow
- If you encounter an issue with Designer, the repository is https://github.com/vaadin/designer
- If you encounter an issue with TestBench, the repository is https://github.com/vaadin/testbench