}
public void addWorker(final Worker worker, final String title, final String text, final ScalableIcon icon) {
if (log.isDebugEnabled()) log.debug(HelperLog.methodStart(worker, title, text, icon));
if (null == worker) {
throw new RuntimeExceptionIsNull("worker"); //$NON-NLS-1$
}
workers.put(worker, new TaskImpl(worker, title, text, icon));
createLayout();