httpcore5-h2/src/main/java/org/apache/hc/core5/http2/impl/nio/bootstrap/H2ServerBootstrap.java [459:504]:
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                        RequestRouter.IGNORE_PORT_AUTHORITY_RESOLVER,
                        requestRouter);
            }
        }

        final HandlerFactory<AsyncServerExchangeHandler> handlerFactory;
        if (!filters.isEmpty()) {
            final NamedElementChain<AsyncFilterHandler> filterChainDefinition = new NamedElementChain<>();
            filterChainDefinition.addLast(
                    new TerminalAsyncServerFilter(new DefaultAsyncResponseExchangeHandlerFactory(requestRouterCopy)),
                    StandardFilter.MAIN_HANDLER.name());
            filterChainDefinition.addFirst(
                    new AsyncServerExpectationFilter(),
                    StandardFilter.EXPECT_CONTINUE.name());

            for (final FilterEntry<AsyncFilterHandler> entry: filters) {
                switch (entry.position) {
                    case AFTER:
                        filterChainDefinition.addAfter(entry.existing, entry.filterHandler, entry.name);
                        break;
                    case BEFORE:
                        filterChainDefinition.addBefore(entry.existing, entry.filterHandler, entry.name);
                        break;
                    case REPLACE:
                        filterChainDefinition.replace(entry.existing, entry.filterHandler);
                        break;
                    case FIRST:
                        filterChainDefinition.addFirst(entry.filterHandler, entry.name);
                        break;
                    case LAST:
                        // Don't add last, after TerminalAsyncServerFilter, as that does not delegate to the chain
                        // Instead, add the filter just before it, making it effectively the last filter
                        filterChainDefinition.addBefore(StandardFilter.MAIN_HANDLER.name(), entry.filterHandler, entry.name);
                        break;
                }
            }

            NamedElementChain<AsyncFilterHandler>.Node current = filterChainDefinition.getLast();
            AsyncServerFilterChainElement execChain = null;
            while (current != null) {
                execChain = new AsyncServerFilterChainElement(current.getValue(), execChain);
                current = current.getPrevious();
            }

            handlerFactory = new AsyncServerFilterChainExchangeHandlerFactory(execChain, exceptionCallback);
        } else {
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httpcore5/src/main/java/org/apache/hc/core5/http/impl/bootstrap/AsyncServerBootstrap.java [456:500]:
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                        RequestRouter.IGNORE_PORT_AUTHORITY_RESOLVER,
                        requestRouter);
            }
        }
        final HandlerFactory<AsyncServerExchangeHandler> handlerFactory;
        if (!filters.isEmpty()) {
            final NamedElementChain<AsyncFilterHandler> filterChainDefinition = new NamedElementChain<>();
            filterChainDefinition.addLast(
                    new TerminalAsyncServerFilter(new DefaultAsyncResponseExchangeHandlerFactory(requestRouterCopy)),
                    StandardFilter.MAIN_HANDLER.name());
            filterChainDefinition.addFirst(
                    new AsyncServerExpectationFilter(),
                    StandardFilter.EXPECT_CONTINUE.name());

            for (final FilterEntry<AsyncFilterHandler> entry: filters) {
                switch (entry.position) {
                    case AFTER:
                        filterChainDefinition.addAfter(entry.existing, entry.filterHandler, entry.name);
                        break;
                    case BEFORE:
                        filterChainDefinition.addBefore(entry.existing, entry.filterHandler, entry.name);
                        break;
                    case REPLACE:
                        filterChainDefinition.replace(entry.existing, entry.filterHandler);
                        break;
                    case FIRST:
                        filterChainDefinition.addFirst(entry.filterHandler, entry.name);
                        break;
                    case LAST:
                        // Don't add last, after TerminalAsyncServerFilter, as that does not delegate to the chain
                        // Instead, add the filter just before it, making it effectively the last filter
                        filterChainDefinition.addBefore(StandardFilter.MAIN_HANDLER.name(), entry.filterHandler, entry.name);
                        break;
                }
            }

            NamedElementChain<AsyncFilterHandler>.Node current = filterChainDefinition.getLast();
            AsyncServerFilterChainElement execChain = null;
            while (current != null) {
                execChain = new AsyncServerFilterChainElement(current.getValue(), execChain);
                current = current.getPrevious();
            }

            handlerFactory = new AsyncServerFilterChainExchangeHandlerFactory(execChain, exceptionCallback);
        } else {
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