javac/code/Scope.java

779         public Scope importByName(Types types, Scope origin, Name name, ImportFilter filter, JCImport imp, BiConsumer<JCImport, CompletionFailure> cfHandler) {
780             return appendScope(new FilterImportScope(types, origin, name, filter, imp, cfHandler));
845                               BiConsumer<JCImport, CompletionFailure> cfHandler) {
853             prependSubScope(new FilterImportScope(types, origin, null, filter, imp, cfHandler));
873         private final BiConsumer<JCImport, CompletionFailure> cfHandler;
880                                  BiConsumer<JCImport, CompletionFailure> cfHandler) {
887             this.cfHandler = cfHandler;
907                 cfHandler.accept(imp, cf);
931                 cfHandler.accept(imp, cf);