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Java Delegates

The simplest option is to create a class that implements the org.activiti.engine.delegate.JavaDelegate interface.

import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.JavaDelegate;

public class MyJavaDelegate implements JavaDelegate {

    public void execute(DelegateExecution execution) throws Exception {
        System.out.println("Hello from the class delegate");
        execution.setVariable("var1", "Hello from the class delegate");


Build a jar with this class, and add it to the classpath. In the Service task configuration, set the class property to using the fully qualified classname (in this case

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