We are happy to announce the release of SeedStack 15.11.1, an incremental update of SeedStack 15.11.



The validation add-on has been improved to better conform with the Bean Validation specification. The custom ValidationService is deprecated and should be replaced by the class Validator (which can be injected or obtained through the injectable ValidatorFactory).


Minor fixes of error messages which referenced outdated information.


The i18n add-on performance has been vastly improved, both for translation initial loading and during heavy use (better caching implementation). The translations of the add-on itself have been moved to static files in its W20 frontend instead of being automatically populated backend keys. The CSV import throwing exceptions has been fixed.

Beware that this version uses a different database mapping which is incompatible with tables from previous versions. The upgrade procedure is:

  • Export your keys and translations to a CSV file with your current version,
  • Drop old i18n tables,
  • Upgrade to the latest i18n version and let it recreate the tables,
  • Import your keys and translation.

A detailed blog post will soon be published with the procedure details.

W20 bridge

The W20 bridge add-on contains minor fixes and the latest version of W20 and it add-ons. The main evolution of W20 is the upgrade to AngularJS 1.4.8 and Bootstrap 3.3.6.

New features

Servlet 3.1: no more web.xml

Seed Web 2.2.0 comes with a support for Servlet 3.1, but Servlet 2.5 is still supported. If your servlet container supports servlet 3+, remove all your web.xml files and according tests configuration.

    public static WebArchive createDeployment() {
        return ShrinkWrap.create(WebArchive.class)
                   .setWebXML("WEB-INF/web.xml"); // TODO remove the web.xml configuration


The version 2 of JAX-RS standard has been integrated in the Java framework through the Jersey 2 library. You can now benefits of all the improvements of the JAX-RS 2 specification such as:

  • Bean validation of parameters and return values,
  • The ability to group parameters in reusable «BeanParam» classes,
  • Asynchronous resources.

The JAX-RS 2 specification is backwards-compatible with JAX-RS 1 so you can easily upgrade by replacing your seed-rest-jersey1 dependency with seed-rest-jersey2. The configuration options are unchanged, except if you happened to have specified custom Jersey properties. In that case, replace them with their Jersey 2 equivalent.


A new Swagger add-on has been released and can be used to expose JSON information about your application API. This can be used by Swagger clients to display and document your REST API automatically. Some devices (like API-management tools) can also autoconfigure themselves by using this Swagger description.

To enable the Swagger add-on, simply add it to your project dependencies:

Show version
dependencies {

The Swagger description will then be available on:

  • http://myserver.org/swagger.json for the JSON format,
  • http://myserver.org/swagger.yaml for the YAML format.

Component versions

Updated components are highlighted in bold characters.



  • audit-addon: 2.1.0
  • monitoring-addon: 2.1.0
  • elasticsearch-addon: 2.1.0
  • i18n-addon: 2.2.0
  • io-addon: 2.1.0
  • javamail-addon: 2.1.0
  • jcache-addon: 2.1.0
  • jdbc-addon: 2.1.2
  • jms-addon: 2.1.1
  • jpa-addon: 2.1.2
  • ldap-addon: 2.1.0
  • mongodb-addon: 1.0.0
  • neo4j-addon: 1.0.0
  • redis-addon: 1.0.0
  • scheduling-addon: 2.1.0
  • solr-addon: 1.0.0
  • spring-bridge-addon: 2.2.0
  • swagger-addon: 1.0.0 (new)
  • validation-addon: 2.2.0
  • w20-bridge-addon: 2.2.0
  • web-services-addon: 2.1.1
  • w20-extras: 2.1.1
  • w20-dataviz: 2.1.1
  • w20-material: 2.1.3
  • w20-components: 2.2.0
  • w20-bootstrap-2: 2.1.2
  • w20-bootstrap-3: 2.1.2


  • w20-simple-theme: 3.1.1
  • w20-business-theme: 1.1.3

On this page