//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void execute(org.camunda.bpm.engine.impl.pvm.delegate.ActivityExecution execution) throws Exception
public virtual void execute(ActivityExecution execution)
{
PvmProcessInstance subProcessInstance = execution.createSubProcessInstance(processDefinition);
subProcessInstance.start();
}