Apache Wicket 8.0.0-M9 released

1 New and noteworthy
2 Caveats
3 Using this release
4 Upgrading from earlier versions
- 4.1 This Release

17 Feb 2018

The Apache Wicket PMC is proud to announce Apache Wicket 8.0.0-M9!

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 8. 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 8.0.0.

New and noteworthy

Before WICKET-6498 users used to create a custom implementation of IHeaderResponseDecorator to place JavaScript items inside page body:

    @Override
    public void init()
    {
       setHeaderResponseDecorator(new JavaScriptToBodyCustomResponseDecorator("footer-container"));
    }

See user guide for more details. Now each application has a default IHeaderResponseDecorator, which decorates header responses with a ResourceAggregator. Applications have to make sure, that each response is now explicitly decorated with a ResourceAggregator too:

    @Override
    public void init()
    {
       setHeaderResponseDecorator(response -> 
       {
            return new ResourceAggregator(new JavaScriptFilteredIntoFooterHeaderResponse(response, "footer-container"));
       });
    }

Caveats

WICKET-6498 might not work as expected due to a known issue with all major browsers (Chrome, Firefox, IE > 10) which allows deferred scripts to be executed before DOMContentLoaded is fired. For this reason WICKET-6498 should be avoided for production applications and used carefully.

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):

<dependency>
    <groupId>org.apache.wicket</groupId>
    <artifactId>wicket-core</artifactId>
    <version>8.0.0-M9</version>
</dependency>

Or download and build the distribution yourself, or use our convenience binary package

Source: 8.0.0-M9 source download
Binary: 8.0.0-M9 binary download

Upgrading from earlier versions

If you upgrade from 8.y.z this release is a drop in replacement. If you come from a version prior to 8.0.0, please read our Wicket 8 migration guide found at

http://s.apache.org/wicket8migrate

Have fun!

— The Wicket team

========================================================================

The signatures for the source release artefacts:

Signature for apache-wicket-8.0.0-M9.zip:

Signature for apache-wicket-8.0.0-M9.tar.gz:

========================================================================

This Release

CHANGELOG for 8.0.0-M9:

Bug

[WICKET-6332] - NullPointerException in PageParameters#equals()
[WICKET-6441] - MockHttpSession and MockSessionStore don’t call onInvalidate() on invalidate()
[WICKET-6448] - Provide behavior that disables a button after click
[WICKET-6477] - Component.getDefaultModelObject() wraps in RuntimeException instead of WicketRuntimeException
[WICKET-6484] - Wicket.Cookie.set does not set ‘secure’ flag
[WICKET-6489] - Exception when “identifier code” javascript is not start on PrependJavaScript
[WICKET-6491] - AjaxDownload is not working in blob mode for Microsoft browsers
[WICKET-6492] - javascript files are not minified in deployment mode and not united
[WICKET-6493] - WebSocket SessionIds are wrong (HttpSession one used instead of Websocket one) + NPE if no HttpSession is found during Handshake Request
[WICKET-6496] - Duplicate definition of interface JSONString
[WICKET-6501] - DefaultPageManagerProvider does not honour StoreSettings.setAsynchronous(false)
[WICKET-6506] - Performance issue when large component isn’t visible
[WICKET-6512] - pageId is being reset during Session::replaceSession() call
[WICKET-6513] - NullPointerException at PageStoreManager$SessionEntry after login
[WICKET-6518] - Memory leaks on quickstart restart in tomcat
[WICKET-6522] - ThreadLocal leak in PageStoreManager
[WICKET-6523] - Two AbstractAjaxTimerBehaviors on same component timeId conflict
[WICKET-6524] - Do not require bean validation 2.0.0
[WICKET-6529] - Feedback from onSubmit not rendered on stateless pages
[WICKET-6530] - Race-condition in session invalidation

New Feature

[WICKET-6497] - unify javascript files
[WICKET-6498] - wicket 8 - js to asnyc and or defer

Improvement

[WICKET-6055] - AjaxLazyLoadPanel should provide non-blocking lazy load
[WICKET-6284] - Introduce lambda-enhanced factory method in ResourceReference
[WICKET-6499] - Support for Bean Validation 2.0
[WICKET-6503] - Ajax refresh and feedback panel
[WICKET-6504] - Use a serializable model for FileSystemResource’s path
[WICKET-6509] - Import junit packages as optional
[WICKET-6514] - FeedbackCollector(Component) should not collect session-scoped feedback messages
[WICKET-6517] - use Ajax for multipart instead of iframe

Task

[WICKET-6148] - Remove AjaxEventBehavior#onCheckEvent() before Wicket 8.0.0

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