Integer Comparision in mule choice component - mule

Question

I have a very simple flow where im trying to do comparision of inbound property and payload which are integers inside a choice component, inspite of the values being the same the choice component routes its to the default section.
I would like to get some help to make this work
Thank you in advance
<mule xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
xmlns:spring="http://www.springframework.org/schema/beans" version="EE-3.4.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd
http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd
http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
http://www.mulesoft.org/schema/mule/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.xsd">
<flow name="flow_testFlow1" doc:name="flow_testFlow1">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8081" doc:name="HTTP"/>
<set-payload value="#[12]" doc:name="Set Payload"/>
<set-property propertyName="trial" value="#[12]" doc:name="Property"/>
<choice doc:name="Choice">
<when expression="#[payload == message.inboundProperties['trial']]">
<logger level="INFO" doc:name="Logger" message="Success"/>
</when>
<otherwise>
<logger level="INFO" doc:name="Logger" message="error"/>
</otherwise>
</choice>
</flow>
</mule>

Answer 1

set-property sets properties in the outbound scope, the inbound scope is read-only (created by the inbound endpoint).
So you need to fix your choice route expression like this:
<when expression="#[payload == message.outboundProperties['trial']]">
And then it works.