/wro4j-core/src/main/java/ro/isdc/wro/manager/callback/LifecycleCallbackRegistry.java
input.onBeforeMerge( ) ;input.onResourceChanged( resource) ;
input.onResourceChanged ( resource ) ;
@Override public void onResourceChanged(final Resource resource) { forEachCallbackDo(new Function<LifecycleCallback, Void>() { @Override public Void apply(final LifecycleCallback input) throws Exception { <extra_id_0> return null; } }); } private void forEachCallbackDo(final Function<LifecycleCallback, Void> func) { for (final LifecycleCallback callback : getCallbacks()) {