Liferay Portal ignores the <alias> element in the <event-definition> of portlet.xml

According to the JSR-286 spec:
"The portlet can specify additional alias names in order to enable portals performing an automatic wiring between events."
(section "PLT.15.2.4.1 Declaration in the deployment descriptor" of the JSR-286 spec)

According to this I should be able to wire a "supported-publishing-event" of one portlet and a "supported-processing-event" of another by setting an alias in one of them.

In my scenario I have two portlets: PortletSender and PortletReceiver.

• PortletSender has a link. When the user clicks it, the portlet sends an event with the current date (a java.lang.String object)

• When PortletReceiver receives this event, it shows it in a JSP.

Both portlets are in the same page.

The portlet.xml of PortletSender is:

<portlet-app version="2.0" ... xmlns:ns1="http://www.denodo.com/widget/portlet/portlet-sender">

<portlet>
<portlet-name>PortletSender</portlet-name>

...

<supported-publishing-event>
<qname>ns1:event1</qname>
</supported-publishing-event>
</portlet>

<event-definition>
<qname>ns1:event1</qname>
<alias xmlns:x="http://www.denodo.com/widget/portlet/portlet-receiver">x:testEvent</alias>
<value-type>java.lang.String</value-type>
</event-definition>
</portlet-app>

The portlet.xml of PortletReceiver is:
<portlet-app version="2.0" xmlns:ns2="http://www.denodo.com/widget/portlet/portlet-receiver">

<portlet>
<portlet-name>PortletReceiver</portlet-name>
<display-name>Portlet Receiver</display-name>
<portlet-class>com.denodo.test.PortletReceiver</portlet-class>

...

<supported-processing-event>
<qname>ns2:testEvent</qname>
</supported-processing-event>

</portlet>

<event-definition>
<qname>ns2:testEvent</qname>
<value-type>java.lang.String</value-type>
</event-definition>
</portlet-app>

You can see that the <alias> of "event1" is the same as the "qname" of "testEvent" in PortletReceiver.
However, the events never reach PortletReceiver.

If I change the qname of <event-definition> and <supported-processing-event> in PortletSender to "<qname xmlns:x="http://www.denodo.com/widget/portlet/portlet-receiver">x:testEvent</qname>", PortletReceiver receives the event.

Steps to Reproduce:
---------------------------------------

• Unzip the attached file. It creates to directories: PortletReceiver and PortletSender.

• Execute "maven war:war" in both directories.

• Copy the files PortletSender.war and PortletReceiver.war to %LIFERAY_HOME%/deploy

• In Liferay, add these portlets to the same page.

• Click on the link " Send event" of "Portlet Sender"

Actual Results:
---------------------------------------
Portlet B does not receive the event.

Expected Results:
---------------------------------------
Portlet B should receive the event.
If Portlet B receives the event, prints the string "Event received: ..." in System.out.