void (Presentation sourcePresentation, Presentation targetPresentation) { targetPresentation.copyIconIfUnset(sourcePresentation); if (Strings.isEmpty(targetPresentation.getText()) && sourcePresentation.getText() != null) { targetPresentation.setTextWithMnemonic(sourcePresentation.getTextWithPossibleMnemonic()); } if (targetPresentation.getDescription() == null && sourcePresentation.getDescription() != null) { targetPresentation.setDescription(sourcePresentation.getDescription()); } }