// TODO Message resource i18n
throw new JspException("Component " + component.getClass().getName() + " is not instanceof TabChangeSource");
}
TabChangeSource changeSource = (TabChangeSource) component;
TabChangeListener handler = null;
ValueBinding valueBinding = null;
if (binding != null && UIComponentTag.isValueReference(binding)) {
valueBinding = ComponentUtil.createValueBinding(binding);
if (valueBinding != null) {
Object obj = valueBinding.getValue(FacesContext.getCurrentInstance());