[jboss-user] [JBoss Portal] - Re: Problem with HelloWorld IPC sample

[joe_the_quick]

hi there,

I have faced the same issue as you do.

The quick solution:
Look into the Jboss Portal Reference Guide 2.6 (http://docs.jboss.com/jbportal/v2.6/reference-guide/en/html_single/#ipc). There you find the correct link to the HelloWorldIPC sample:
http://anonsvn.jboss.org/repos/portletswap/portlets/2_4/bundles/HelloWorldIPC.zip

I've tested the included SAR-File helloworldipcportlet.sar with Jboss-Portal-2.4.0 and it works immediately, no exceptions show up in the log file. In fact, this is really a nice feature to have.

Issues I've found:
Regarding Jboss Portal 2.2.1:
The provided HelloWorldIPC sample mentioned in the Reference Doc (http://labs.jboss.com/file-access/default/members/portletswap/downloads/portlets/samples/HelloWorldIPC.zip) does not work with Jboss Portal 2.2.1 SP3.
You get the following exception:
java.lang.NoSuchMethodError: org.jboss.portlet.event.node.WindowActionEvent.getParameters()Lorg/jboss/portal/server/util/Parameters;
	org.jboss.portlet.hello.HelloWorldPortletB$Listener.onEvent(Unknown Source)
It seems that the sample requires a method which has not been implemented in Jboss-Portal-2.2.1.

I've inspected the source and found that WindowActionEvent derives from WindowEvent, which supports HashMap getParameters(), but not Parameters getParameter(). This is probably the reason, but I don't know how to fix.

Regarding Jboss Portal 2.4-documentation:
However, the IPC chapter has been (apparently accidentally) completely removed from the Jboss Portal 2.4-documentation (http://docs.jboss.com/jbportal/v2.4/reference-guide/en/html_single/#ipc), althougth IPC is mentioned in the feature list at the beginning. 

Regarding Jboss Portal 2.6DR:
The sample of HelloWorldIPC for 2.4 works, but only after deployed HOT. If you deploy it before startup, there are definitely lots of classloading-related exceptions.

best regards,
johannes

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