WSO2 ESB 4.7.0 API url-mapping - api

Question

I am trying to make an API at WSO2 ESB 4.7.0 to process requests for a RESTful service. It seems that the URL-Mapping feature is not working or is working just like a filter, choosing what to send to the endpoint and what to drop. I have followed this tutorial: http://wso2.com/library/articles/2012/09/get-cup-coffee-wso2-way/. Here is my API configuration:
<api xmlns="http://ws.apache.org/ns/synapse" name="rest" context="/rest">
<resource methods="GET" url-mapping="/">
<inSequence>
<send>
<endpoint>
<http method="get" uri-template="http://myserver/REST"/>
</endpoint>
</send>
</inSequence>
</resource>
<resource methods="GET" url-mapping="/numbers">
<inSequence>
<send>
<endpoint>
<http method="get" uri-template="http://myserver/REST/allnumbers"/>
</endpoint>
</send>
</inSequence>
</resource>
</api>
There are three situations:
This URL works: http://esb/rest
This URL doesn't work: http://esb/rest/numbers
This URL works: http://myserver/REST/allnumbers
In situation 2, I got an Apache Tomcat error:
HTTP Status 404 - Not Found
type Status report
message Not Found
description The requested resource (Not Found) is not available.
Apache Tomcat/6.0.32
But if I try the endpoint address, it works. I thought that the URL-Mapping would route requests for "/numbers" to "/allnumbers". What am I doing wrong?

Answer 1

Solved! I had to remove the REST_URL_POSTFIX before sending to the endpoint:
<api xmlns="http://ws.apache.org/ns/synapse" name="rest" context="/rest">
<resource methods="GET" url-mapping="/">
<inSequence>
<send>
<endpoint>
<http method="get" uri-template="http://myserver/REST"/>
</endpoint>
</send>
</inSequence>
</resource>
<resource methods="GET" url-mapping="/numbers">
<inSequence>
<property name="REST_URL_POSTFIX" scope="axis2" action="remove"/>
<send>
<endpoint>
<http method="get" uri-template="http://myserver/REST/allnumbers"/>
</endpoint>
</send>
</inSequence>
</resource>
</api>
Now, http://esb/rest/numbers works too! :)