@Nullable
	public Supplier<? extends SocketAddress> bindAddressSupplier() {
		return bindAddressSupplier;
	}
@Test
	void bindAddressSupplier() {
		assertThat(builder.build().bindAddressSupplier()).isNull();
		Supplier<SocketAddress> addressSupplier = () -> new InetSocketAddress("localhost", 9527);
		builder.bindAddressSupplier(addressSupplier);
		assertThat(builder.build().bindAddressSupplier()).isEqualTo(addressSupplier);
	}