src/main/java/wybs/util/StdProject.java
public void refresh() throws IOException {
		root.refresh();
		//
		for(Build.Rule rule : rules) {
			rule.apply(executor);
		}
	}
public void refresh() throws IOException {
		root.refresh();
		//
		for(Build.Rule rule : rules) {
			rule.apply(executor);
		}
	}
Force root to refresh entries from permanent storage (where appropriate). For
items which have been modified, this operation has no effect (i.e. the new
contents are retained).