{
try
{
Class implClass = loader.loadClass(className);
WorkflowProcessListener listener = (WorkflowProcessListener) implClass.newInstance();
workflowProcess.addWorkflowProcessListener(listener);
}
catch (Throwable ex)
{
errorList.add(new WorkflowException("Can not load class :" + className, ex));
System.err.println("Can not load class :" + className);