Error while converting java to class

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kavi

Hi ,

I want to write my own class for java service task.
So i wrote a .java in "activiti\workspace\activiti-engine-examples\src\main\java\org\activiti\examples\bpmn\servicetask"
But when i tried to convert it into class i get errors like
package org.activiti.engine.delegate.Expression not found. I am importing following
import org.activiti.engine.delegate.Expression;
import org.activiti.engine.delegate.JavaDelegate;
import org.activiti.engine.delegate.DelegateExecution;
import org.apache.commons.mail.*;

What am i missing?
Where are the classes imported present?

Thanks,
kavi

ronald_van_kuij

Without wanting to be offensive, I think you need to learn a little java basics first.

'converting' java to class files is called compiling