Sending icepush/core/src/main/java/org/icepush/Browser.java
Sending icepush/core/src/main/java/org/icepush/LocalPushGroupManager.java
Sending icepush/core/src/main/java/org/icepush/PushContext.java
Sending icepush/core/src/main/java/org/icepush/servlet/BrowserDispatcher.java
Sending icepush/util/src/main/java/org/icesoft/util/servlet/ServletContextConfiguration.java
Transmitting file data .....
Committed revision 48666.

The Set-Cookie for header for the ice.push.browser Cookie now includes the Expires attribute, effectively changing this Cookie from a Session Cookie to a Persistent Cookie. Marking this one as FIXED.

Reopening due to the following reported UnsupportedOperationException thrown when using a Portlet environment:

Caused by: java.lang.UnsupportedOperationException
       at org.icefaces.impl.push.servlet.ProxyHttpServletRequest.getServletContext(ProxyHttpServletRequest.java:110)
       at org.icepush.PushContext.createPushId(PushContext.java:166)
       at org.icefaces.impl.event.BridgeSetup.generateViewID(BridgeSetup.java:293)
       at org.icefaces.impl.event.BridgeSetup.assignViewID(BridgeSetup.java:283)
       at org.icefaces.impl.event.BridgeSetup.access$300(BridgeSetup.java:45)
       at org.icefaces.impl.event.BridgeSetup$AssignViewID.beforePhase(BridgeSetup.java:317)
       at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228)
       at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:99)

Deryk's initial analysis:
There are lots of unsupported methods in ProxyHttpServletRequest as we typically only implemented the minimum we needed for operating. However, the new call at org.icepush.PushContext.createPushId(PushContext.java:166) is doing this:

cookie.setMaxAge((int)(Browser.getTimeout(request.getServletContext()) / 1000));

This kind of servlet specific call is not portlet-friendly. Normally I’d recommend using the FacesContext API to do this kind of thing but maybe it’s not available in ICEpush? If not then it might be that we need to implement the method in the ProxyHttpServletRequest facade. However, since I’m not really sure how the Browser class is using the ServletContext, the problem could go deeper than that.

Sending icepush-ee/core/src/main/java/org/icepush/PushContext.java
Transmitting file data .
Committed revision 48721.

The ServletContext is now passed as a parameter to the PushContext constructor in order for it to be available without the need for invoking HttpServletRequest.getServletContext(). Marking this one as FIXED again.

Sending icepush-ee/util/src/main/java/org/icesoft/util/servlet/ServletContextConfiguration.java
Transmitting file data .
Committed revision 48724.

The ServletContextConfiguration.getAttribute(String) catches a NullPointerException and wraps it into a ConfirmationException assuming the parameter could not be found. Marking this one as FIXED once again.

Re-opening because the NPE can be reproduced again with EE 4.1.1.BETA Jenkins Build #2, using showcase-portlet on Liferay 6.2 g5:
The NPE server errors have been seen randomly when adding portlet demos to a page, if the server was started with a demo already included on the page.
If restarting the server without any demos on the page, the errors can no longer be reproduced.

I back-ported the "second-part" fix for this one to the EE 4.1.1.BETA tag.

Verified EE-4.1.1.BETA tag r.48822, and Jenkins Build #3 /showcase-portlet on Liferay 6.2 g5 on IE11, FF41, Chrome45.

Having an expiry date on the ice.push.browser cookie causes the ICEfaces applications to stop working. See ICE-11020. The problem starts occurring whenever the cookie expiry interval is lower than the one set for session expiry.
Also the cookie expiration is enforced regardless of user or server activity, once the defined interval has elapsed the cookie is removed by the browser.

Sending icepush/core/src/main/java/org/icepush/Browser.java
Transmitting file data .
Committed revision 48872.

As for robust Cloud Push support the Browser-ID cookie's default expiry is now set to 3 years. Ensuring it survives across sessions and doesn't interfere with the current session. Marking this one as FIXED again.