undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/java/net/httpclient/FlowAdaptersCompileOnly.java
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test/jdk/java/net/httpclient/FlowAdaptersCompileOnly.java
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/*
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* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.net.http.HttpClient;
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import java.net.http.HttpRequest;
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import java.net.http.HttpResponse;
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import java.nio.ByteBuffer;
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import java.nio.MappedByteBuffer;
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import java.util.Collection;
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import java.util.List;
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import java.util.concurrent.Flow;
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import java.util.function.Function;
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import java.net.http.HttpRequest.BodyPublishers;
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import java.net.http.HttpResponse.BodyHandler;
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import java.net.http.HttpResponse.BodyHandlers;
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import java.net.http.HttpResponse.BodySubscriber;
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import java.net.http.HttpResponse.BodySubscribers;
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/*
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* @test
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* @summary Basic test for Flow adapters with generic type parameters
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* @compile FlowAdaptersCompileOnly.java
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*/
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public class FlowAdaptersCompileOnly {
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static void makesSureDifferentGenericSignaturesCompile() {
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BodyPublishers.fromPublisher(new BBPublisher());
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BodyPublishers.fromPublisher(new MBBPublisher());
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BodyHandlers.fromSubscriber(new ListSubscriber());
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BodyHandlers.fromSubscriber(new CollectionSubscriber());
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BodyHandlers.fromSubscriber(new IterableSubscriber());
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BodyHandlers.fromSubscriber(new ObjectSubscriber());
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BodySubscribers.fromSubscriber(new ListSubscriber());
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BodySubscribers.fromSubscriber(new CollectionSubscriber());
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BodySubscribers.fromSubscriber(new IterableSubscriber());
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BodySubscribers.fromSubscriber(new ObjectSubscriber());
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BodyPublishers.fromPublisher(new BBPublisher(), 1);
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BodyPublishers.fromPublisher(new MBBPublisher(), 1);
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BodyHandlers.fromSubscriber(new ListSubscriber(), Function.identity());
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BodyHandlers.fromSubscriber(new CollectionSubscriber(), Function.identity());
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BodyHandlers.fromSubscriber(new IterableSubscriber(), Function.identity());
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BodyHandlers.fromSubscriber(new ObjectSubscriber(), Function.identity());
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BodySubscribers.fromSubscriber(new ListSubscriber(), Function.identity());
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BodySubscribers.fromSubscriber(new CollectionSubscriber(), Function.identity());
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BodySubscribers.fromSubscriber(new IterableSubscriber(), Function.identity());
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BodySubscribers.fromSubscriber(new ObjectSubscriber(), Function.identity());
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}
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static class BBPublisher implements Flow.Publisher<ByteBuffer> {
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@Override
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public void subscribe(Flow.Subscriber<? super ByteBuffer> subscriber) { }
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}
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static class MBBPublisher implements Flow.Publisher<MappedByteBuffer> {
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@Override
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public void subscribe(Flow.Subscriber<? super MappedByteBuffer> subscriber) { }
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}
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static class ListSubscriber implements Flow.Subscriber<List<ByteBuffer>> {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(List<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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}
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static class CollectionSubscriber implements Flow.Subscriber<Collection<ByteBuffer>> {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(Collection<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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}
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static class IterableSubscriber implements Flow.Subscriber<Iterable<ByteBuffer>> {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(Iterable<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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}
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static class ObjectSubscriber implements Flow.Subscriber<Object> {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(Object item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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}
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// ---
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static final Function<ListSubscriber,Integer> f1 = subscriber -> 1;
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static final Function<ListSubscriber,Number> f2 = subscriber -> 2;
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static final Function<ListSubscriberX,Integer> f3 = subscriber -> 3;
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static final Function<ListSubscriberX,Number> f4 = subscriber -> 4;
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static class ListSubscriberX extends ListSubscriber {
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int getIntegerX() { return 5; }
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}
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static void makesSureDifferentGenericFunctionSignaturesCompile() {
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BodyHandler<Integer> bh01 = BodyHandlers.fromSubscriber(new ListSubscriber(), s -> 6);
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BodyHandler<Number> bh02 = BodyHandlers.fromSubscriber(new ListSubscriber(), s -> 7);
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BodyHandler<Integer> bh03 = BodyHandlers.fromSubscriber(new ListSubscriber(), f1);
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BodyHandler<Number> bh04 = BodyHandlers.fromSubscriber(new ListSubscriber(), f1);
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BodyHandler<Number> bh05 = BodyHandlers.fromSubscriber(new ListSubscriber(), f2);
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BodyHandler<Integer> bh06 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f1);
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BodyHandler<Number> bh07 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f1);
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BodyHandler<Number> bh08 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f2);
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BodyHandler<Integer> bh09 = BodyHandlers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX);
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BodyHandler<Number> bh10 = BodyHandlers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX);
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BodyHandler<Integer> bh11 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f3);
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BodyHandler<Number> bh12 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f3);
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BodyHandler<Number> bh13 = BodyHandlers.fromSubscriber(new ListSubscriberX(), f4);
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BodySubscriber<Integer> bs01 = BodySubscribers.fromSubscriber(new ListSubscriber(), s -> 6);
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BodySubscriber<Number> bs02 = BodySubscribers.fromSubscriber(new ListSubscriber(), s -> 7);
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BodySubscriber<Integer> bs03 = BodySubscribers.fromSubscriber(new ListSubscriber(), f1);
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BodySubscriber<Number> bs04 = BodySubscribers.fromSubscriber(new ListSubscriber(), f1);
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BodySubscriber<Number> bs05 = BodySubscribers.fromSubscriber(new ListSubscriber(), f2);
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BodySubscriber<Integer> bs06 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f1);
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BodySubscriber<Number> bs07 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f1);
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BodySubscriber<Number> bs08 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f2);
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BodySubscriber<Integer> bs09 = BodySubscribers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX);
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BodySubscriber<Number> bs10 = BodySubscribers.fromSubscriber(new ListSubscriberX(), ListSubscriberX::getIntegerX);
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BodySubscriber<Integer> bs11 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f3);
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BodySubscriber<Number> bs12 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f3);
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BodySubscriber<Number> bs13 = BodySubscribers.fromSubscriber(new ListSubscriberX(), f4);
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}
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// ---
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static class NumberSubscriber implements Flow.Subscriber<List<ByteBuffer>> {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(List<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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public Number getNumber() { return null; }
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}
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static class IntegerSubscriber extends NumberSubscriber {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(List<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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public Integer getInteger() { return null; }
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}
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static class LongSubscriber extends NumberSubscriber {
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@Override public void onSubscribe(Flow.Subscription subscription) { }
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@Override public void onNext(List<ByteBuffer> item) { }
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@Override public void onError(Throwable throwable) { }
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@Override public void onComplete() { }
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public Long getLong() { return null; }
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}
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static final Function<NumberSubscriber,Number> numMapper = sub -> sub.getNumber();
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static final Function<IntegerSubscriber,Integer> intMapper = sub -> sub.getInteger();
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static final Function<LongSubscriber,Long> longMapper = sub -> sub.getLong();
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public void makesSureDifferentGenericSubscriberSignaturesCompile()
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throws Exception
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{
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HttpClient client = null;
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HttpRequest request = null;
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IntegerSubscriber sub1 = new IntegerSubscriber();
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HttpResponse<Integer> r1 = client.send(request, BodyHandlers.fromSubscriber(sub1, IntegerSubscriber::getInteger));
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HttpResponse<Number> r2 = client.send(request, BodyHandlers.fromSubscriber(sub1, IntegerSubscriber::getInteger));
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HttpResponse<Number> r3 = client.send(request, BodyHandlers.fromSubscriber(sub1, NumberSubscriber::getNumber));
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HttpResponse<Integer> r4 = client.send(request, BodyHandlers.fromSubscriber(sub1, intMapper));
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HttpResponse<Number> r5 = client.send(request, BodyHandlers.fromSubscriber(sub1, intMapper));
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HttpResponse<Number> r6 = client.send(request, BodyHandlers.fromSubscriber(sub1, numMapper));
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// compiles but makes little sense. Just what you get with any usage of `? super`
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final Function<Object,Number> objectMapper = sub -> 1;
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client.sendAsync(request, BodyHandlers.fromSubscriber(sub1, objectMapper));
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// does not compile, as expected ( uncomment to see )
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//HttpResponse<Number> r7 = client.send(request, BodyHandler.fromSubscriber(sub1, longMapper));
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}
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}
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