Values of f:param for a h:link will be put in the request parameter map

[balta3]

See the following example:

<h:outputText value="before: #{param}" />
<h:link outcome="/page.xhtml">
    <f:param name="linkparam" value="test123" />
    Link
</h:link>
<h:outputText value="after: #{param}" />

The output of the parameter map will contain the parameter linkparam of the link generation after the link. This makes it inpossible to get the original parameter map of this request.

[chkal]

Could you please share more details about your setup. Especially which dependencies you included in your project, which version you are using and the rule you are using for /page.xhtml.

[balta3]

I've created a very simple test project (Maven, 1 class and 2 xhtml files)
You can see the wrong behaviour on /page1, /page2 shows expected behaviour

rewrite-bug-246.zip

[chkal]

Hey. Thanks a lot for providing the sample application. I was able to reproduce the issue you described very easily with it. And I agree that the current behavior isn't correct.

Unfortunately this bug is very hard to track down. I spent over 1.5 hours trying to identify the root cause and I'm still not sure what is going on. And fixing it may even have a large impact on the code base. Not sure about that. It may be a conceptional problem.

To be honest, I don't think that I'll be able to fix it on my own any time soon. Unfortunately development of Rewrite has slowed down because there are only two developers and both @lincolnthree and I don't find much time for Rewrite any more.

Some notes for people who want to spend more time on this:

• Join/Path create two way data bindings to the request parameter maps (see Path.setParameterStore())
• These bindings seems to get submitted even for the outbound rewriting case.
• It does not happen if you define your rules like this: Join.pathNonBinding()...
• Maybe bindings should not be submitted at all in the outbound rewriting case? This would be something to fix in DefaultHttpRewriteProvider.rewriteOutbound. May have a large impact. Not sure about the binding details. I guess @lincolnthree knows more about that.

[lincolnthree]

Rewrite is supposed to ignore these special parameters, I'll have to take a closer look. Thanks for submitting this and sorry for the delay! As Christian mentioned, we're both pretty busy at the moment, but I'll see what I can do.