Attached you will find a portle which is a sample that I developed for Liferay Portal that demonstrates inter-portlet communication with ICEfaces Ajax Push.

Although it is only one .WAR, it contains two portlets: Customers and Bookings

To reproduce the problems:

1. Download and Install the Liferay 4.4.2 + Tomcat 6.0.16 bundle
2. Run the bundle, which will create a $HOME/liferay/deploy folder
3. Download the sample-icefaces-ipc-ajax-push-portlet.war attached to this ticket and copy to $HOME/liferay/deploy
5. Start IE7
6. Login as test@liferay.com with password test
7. Position the mouse over the "Welcome" dock in the upper right hand corner
8. Navigate to "My Places > My Community > Private Pages"
9. Add a page named "IPC"
10. Under the "Add Content" menu, expand the "Samples" category
11. Add the "Sample ICEfaces IPC - Customers" portlet
12. Under the "Add Content" menu, expand the "Samples" category
13. Add the "Sample ICEfaces IPC - Bookings" portlet
14. Click on a customer, note in the Tomcat log:
ERROR [CustomerTable:92] fatal render failure for viewNumber 1
15. Click on the Home tab
16. Click back on the IPC tab, and note in the Tomcat log
ERROR [CustomerTable:92] fatal render failure for viewNumber 1
ERROR [CustomerTable:92] fatal render failure for viewNumber 3

And if you keep repeating steps 15 and 16, more and more output occurs in the Tomcat log.

Also, it seems like sometimes I have to click twice on a customer before the Ajax Push server initiated rendering takes place.