IPC - unable to get example to work

[johnnythehun]

1. System
Os:
Win2000 (or XP)
JAVA_HOME points to JDK 1.5

2. JBOSS:
downloaded and unzipped:
jboss-portal-2.6.2.GA-bundled.zip

3. The IPC example is from:
http://anonsvn.jboss.org/repos/portletswap/portlets/2_4/bundles/HelloWorldIPC.zip

4. running jboss with run.bat - 0.0.0.0

5. deployed (unmodified) helloworldipcportlet.sar into an unmodified server/default/deploy dir under JBOSS_HOME

6. The IPC tab appeared on my default portal

8. The HelloWorldPortletA on the IPC page was empty

9. Looking into the server log I saw that HelloWorldPortletA doView() throws a NullPointer

10. After modifing the HelloWorldPortletA.java code to write everthing it does immediately:

protected void doView(JBossRenderRequest req, JBossRenderResponse resp) throws IOException, PortletException
 {
 try
 {
 resp.setContentType("text/html");
 StringBuffer html = new StringBuffer();
 resp.getWriter().write("strinbuff created");
 // link to a page
 html.append("<-- Page Linking --><br/>");
 PortalNode thisNode = req.getPortalNode().getParent(); // will return this Page as a node.
 resp.getWriter().write("parent got: "+thisNode);
 PortalNode linkToNode = thisNode.resolve("../default");
 resp.getWriter().write("linktonode resolved: "+linkToNode);

I observed that linkToNode is null.

What can I do to make the example work?

(I need IPC, is there any other way?)

Thank you,

John

[johnnythehun]

Ok, I found the solution:
If you use
thisNode/thisNode2 instead of linkToNode/linkToNode2 itt will work

OR just set :
PortalNode linkToNode = thisNode;
and later:
PortalNode linkToNode2 = thisNode2;

[theute]

The example you took was for JBoss Portal 2.4
See the reference documentation for 2.6 API

[johnnythehun]

Thank you, now it works perfectly