Apache Wicket 7.3.0 released

05 May 2016

The Apache Wicket PMC is proud to announce Apache Wicket 7.3.0!

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 7. We use semantic versioning for the development of Wicket, and as such no API breaks are present breaks are present in this release compared to 7.0.0.

New and noteworthy

Wicket Metrics added

A new experimental module for integrating with DropWizard’s Metrics project was created. Metrics provides a powerful toolkit of ways to measure the behavior of critical components in your production environment. Using the Metrics integration requires the use of AspectJ (which is licensed under the Eclipse Public License 1.0)

You can read more about using the Metrics integration in our user guide’s monitoring chapter.

jQuery upgrade

Wicket ships standard with it’s own jQuery. With this release jQuery was upgraded to 1.12.3/2.2.3.

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

Upgrading from earlier versions

If you upgrade from 7.y.z this release is a drop in replacement. If you come from a version prior to 7.0.0, please read our Wicket 7 migration guide found at

Have fun!

— The Wicket team


The signatures for the source release artefacts:

Signature for apache-wicket-7.3.0.zip:

Comment: GPGTools - https://gpgtools.org


Signature for apache-wicket-7.3.0.tar.gz:

Comment: GPGTools - https://gpgtools.org



This Release

CHANGELOG for 7.3.0:

  • WICKET-6069 - OnChangeAjaxBehavior does not work if the url contains a request parameter with same name as wicket id
  • WICKET-6078 - Problem with queued components and auto linking
  • WICKET-6079 - Problem with queued components and label
  • WICKET-6080 - Encapsulation of 3 enclosures leads to WicketRuntimeException
  • WICKET-6084 - ajax request failure handler receives incorrect arguments
  • WICKET-6085 - AjaxTimerBehavior with failure handler cause memory leak in browser
  • WICKET-6087 - Invalid AbstractRequestWrapperFactory.needsWrapper method scope: package - cannot create a custom implementation
  • WICKET-6088 - Problem with queued components and setting the model
  • WICKET-6091 - NPE in RequestLoggerRequestCycleListener when using native-websockets
  • WICKET-6093 - MarkupException due to ID collision in RelativePathPrefixHandler
  • WICKET-6094 - Find adequate ResourceReference with mount parameters
  • WICKET-6097 - JsonRequestLogger –> JsonMappingException –> StackOverflowError Infinite recursion
  • WICKET-6102 - StackoverflowError related to enclosures
  • WICKET-6108 - Closing a ModalWindow with jQuery 2.2.0 produces javascript errors
  • WICKET-6109 - Enclosure - “IllegalArgumentException: Argument ‘markup’ may not be null” after app restart
  • WICKET-6111 - Empty redirect on redirect to home page if home page already shown
  • WICKET-6116 - Exception ‘A child already exists’ when backing to a page with some markups in a Border
  • WICKET-6131 - IndexOutOfBoundsException in org.apache.wicket.core.request.mapper.CryptoMapper.decryptEntireUrl
  • WICKET-6133 - Failing test SpringBeanWithGenericsTest in SNAPSHOT
  • WICKET-6134 - NPE when using ListView with missing markup
  • WICKET-6135 - There is no good way to get POST body content
  • WICKET-6139 - AjaxButton forces rendering type=”button”
  • WICKET-6141 - Runtime Exception rendering ComponentTag with RelativePathPrefixHandler
  • WICKET-6151 - DebugBar/PageSizeDebugPanel throws NullPointerException (need wrapper exception with more detail)
  • WICKET-6053 - Allow to reuse the same application instance in several tests
  • WICKET-6081 - Add “assertNotRequired” to the WicketTester
  • WICKET-6098 - Add logging to HttpSessionDataStore
  • WICKET-6100 - Upgrade jQuery to 1.12.3/2.2.3
  • WICKET-6103 - Synchronization on JSR 356 connection
  • WICKET-6106 - Propagate JSR 356 WebSocket connection error to a page
  • WICKET-6107 - Broadcast onClose event regardless of the JSR 356 WebSocket connection closed state
  • WICKET-6110 - Add a message to StalePageException for better debugging
  • WICKET-6122 - Add .map to the list of allowed file extensions in SecurePackageResourceGuard
  • WICKET-6123 - Remove ‘abstract’ from ChainingModel
  • WICKET-6127 - Add metrics for request duration
  • WICKET-6128 - Add metrics for currently active sessions
  • WICKET-6130 - Make it easier to override parts of SystemMapper
  • WICKET-6144 - Wicket-ajax parameter / header may be used to bypass proper exception handling
  • WICKET-6145 - Enable DeltaManager to replicate PageTable in Sessions
  • WICKET-6152 - Allow to add more than one WebSocketBehavior in the component tree
New Feature