[Trinidad] GlobalConfiguratonImpl.beginRequest called once results in a "fine" log?

[Andrew Robinson]

In 1.2.9.1, the GlobalConfiguratonImpl has the function:

public void beginRequest(final ExternalContext externalContext)

This checks to see if the this has already be called once

If it is called a second time the following code is executed:
    else
    {
      _LOG.fine("BeginRequest called multiple times for this request");
    }

This seems really lenient to me. I would think an exception should be
thrown. How come it is only a fine log? Is there an instance when this
is okay?

The reason I came across this, is that we had a user configure the
Trinidad filter incorrectly:
  <filter-mapping>
    <filter-name>trinidad</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>REQUEST</dispatcher>
  </filter-mapping>
  <filter-mapping>
    <filter-name>trinidad</filter-name>
    <url-pattern>*.jspx</url-pattern>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>REQUEST</dispatcher>
   </filter-mapping>

Due to the double-registering of the filter, exceptions were being
thrown in our code. I would like to be able to throw an exception or
at least a log a fatal/severe message when this happens.

Any opinions on this?

Let me know if it is valid to call beginRequest more than once. Also,
if you have a better means to detect an invalid filter setup, feel
free to share.

-Andrew