Apache Wicket 9.13.0 released

18 Apr 2023

The Apache Wicket PMC is proud to announce Apache Wicket 9.13.0!

Apache Wicket is an open source Java component oriented web application framework that powers thousands of web applications and web sites for governments, stores, universities, cities, banks, email providers, and more. You can find more about Apache Wicket at https://wicket.apache.org

This release marks another minor release of Wicket 9. We use semantic versioning for the development of Wicket, and as such no API breaks are present in this release compared to 9.0.0.

Using this release

With Apache Maven update your dependency to (and don’t forget to update any other dependencies on Wicket projects to the same version):


Or download and build the distribution yourself, or use our convenience binary package you can find here:

  • Download: http://wicket.apache.org/start/wicket-9.x.html#manually

Upgrading from earlier versions

If you upgrade from 9.y.z this release is a drop in replacement. If you come from a version prior to 9.0.0, please read our Wicket 9 migration guide found at

  • http://s.apache.org/wicket9migrate

Have fun!

— The Wicket team


This Release

CHANGELOG for 9.13.0:

  • [WICKET-7005] - ByteBuddy IllegalStateException: Cannot inject already loaded type
  • [WICKET-7022] - JavaScriptStripper fails to detect regular expression correctly
  • [WICKET-7028] - CSP header not rendered when using RedirectPolicy.NEVER_REDIRECT
  • [WICKET-7034] - WebSocket.Closed event not fired when error occurred
  • [WICKET-7037] - [Ajax Download] cookie used to track download complete misses the SameSite attribute
  • [WICKET-7044] - Images in the Wicket 9.x reference guide are not displayed.
  • [WICKET-7011] - Improve usage of JUnit 5.x APIs
  • [WICKET-7014] - Use new API for forward compatibility with CDI 4
  • [WICKET-7016] - Support GCM-SIV for page store encryption
  • [WICKET-7017] - ListenerRequestHandler should not hide IndexOutOfBoundsException
  • [WICKET-7021] - Additional OSGi import fixes
  • [WICKET-7025] - Package private methods should be proxied by ByteBuddy
  • [WICKET-7031] - Update to JQuery 3.6.4
  • [WICKET-7032] - Update the JS tests to use latest version of QUnit (2.x)
  • [WICKET-7035] - fileCountMax should be added to control the amount of files being uploaded
  • [WICKET-7041] - Reduce allocations when rendering component headers
  • [WICKET-7042] - Improve sizing of StringResponse when writing scripts in PartialPageResponse