[ANNOUNCE] Apache Wicket 8.0.0-M9 released

Andrea Del Bene Sat, 17 Feb 2018 06:37:36 -0800

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 (https://issues.apache.org/jira/browse/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 
(https://ci.apache.org/projects/wicket/guide/7.x/single.html#_put_javascript_inside_page_body)
 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: http://www.apache.org/dyn/closer.cgi/wicket/8.0.0-M9
 * Binary: http://www.apache.org/dyn/closer.cgi/wicket/8.0.0-M9/binaries

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:

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


    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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[ANNOUNCE] Apache Wicket 8.0.0-M9 released

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