Drools Server fails starting when reading brl rules from Guvnor

Drools Server fails starting when reading brl rules from Guvnor

I'm having trouble with the integration of Drools Camel Server and
Guvnor.. Version 5.5.0
I've created a JAR which contains POJO and used it in Guvnor to create a
BRL rule (in the future will be created by not technical people)..
The problem is that when I start the drools server , it complains that it
cannot find the class Message defined in the Import of the Rules..
Below the configuration of the Knowledge-servics.xml
<drools:grid-node id="node1" />
<drools:resource-change-scanner id="res-scanner1" interval="15"
enabled="true" />
<drools:kbase id="kbase1" node="node1" />
<drools:kagent id="kagent1" kbase="kbase1" new-instance="false">
<drools:resources>
<drools:resource type="PKG"
source="http://localhost:8082/guvnor/org.drools.guvnor.Guvnor/package/<mypackage>/LATEST"
basic-authentication="enabled" username="admin"
password="admin" />
</drools:resources>
</drools:kagent>
<drools:ksession id="ksession1" type="stateless" kbase="kbase1"
node="node1" />
This is my rule in Guvnor
package mypackage
import mypackage.model.Message rule "first" dialect "mvel" when Message(
text == "a" ) then Message fact0 = new Message(); fact0.setText( "b" );
insert( fact0 ); end