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8216974: HttpConnection not returned to the pool after 204 response

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MultiExchange now call nullBody() on Exchange after receiving 204

Reviewed-by: chegar
This commit is contained in:
Daniel Fuchs 2019-01-15 11:34:20 +00:00
parent 617f75c8cf
commit ca77adf19f
7 changed files with 66 additions and 10 deletions
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9
src/java.net.http/share/classes/jdk/internal/net/http/Exchange.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -151,6 +151,13 @@ final class Exchange<T> {
}
}
// Called for 204 response - when no body is permitted
// This is actually only needed for HTTP/1.1 in order
// to return the connection to the pool (or close it)
void nullBody(HttpResponse<T> resp, Throwable t) {
exchImpl.nullBody(resp, t);
}
public CompletableFuture<T> readBodyAsync(HttpResponse.BodyHandler<T> handler) {
// If we received a 407 while establishing the exchange
// there will be no body to read: bodyIgnored will be true,

9
src/java.net.http/share/classes/jdk/internal/net/http/ExchangeImpl.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -161,6 +161,12 @@ abstract class ExchangeImpl<T> {
}
}
// Called for 204 response - when no body is permitted
void nullBody(HttpResponse<T> resp, Throwable t) {
// only needed for HTTP/1.1 to close the connection
// or return it to the pool
}
/* The following methods have separate HTTP/1.1 and HTTP/2 implementations */
abstract CompletableFuture<ExchangeImpl<T>> sendHeadersAsync();
@ -177,6 +183,7 @@ abstract class ExchangeImpl<T> {
*/
abstract CompletableFuture<Void> ignoreBody();
/** Gets the response headers. Completes before body is read. */
abstract CompletableFuture<Response> getResponseAsync(Executor executor);

10
src/java.net.http/share/classes/jdk/internal/net/http/Http1Exchange.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -28,6 +28,7 @@ package jdk.internal.net.http;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.http.HttpClient;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandler;
import java.net.http.HttpResponse.BodySubscriber;
import java.nio.ByteBuffer;
@ -382,6 +383,13 @@ class Http1Exchange<T> extends ExchangeImpl<T> {
return response.ignoreBody(executor);
}
// Used for those response codes that have no body associated
@Override
public void nullBody(HttpResponse<T> resp, Throwable t) {
response.nullBody(resp, t);
}
ByteBuffer drainLeftOverBytes() {
synchronized (lock) {
asyncReceiver.stop();

11
src/java.net.http/share/classes/jdk/internal/net/http/Http1Response.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -267,6 +267,15 @@ class Http1Response<T> {
}
}
// Used for those response codes that have no body associated
public void nullBody(HttpResponse<T> resp, Throwable t) {
if (t != null) connection.close();
else {
return2Cache = !request.isWebSocket();
onFinished();
}
}
static final Flow.Subscription NOP = new Flow.Subscription() {
@Override
public void request(long n) { }

4
src/java.net.http/share/classes/jdk/internal/net/http/HttpConnection.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -85,8 +85,8 @@ abstract class HttpConnection implements Closeable {
new IdentityHashMap<>();
void add(CompletionStage<?> cf) {
synchronized(operations) {
cf.whenComplete((r,t)-> remove(cf));
operations.put(cf, Boolean.TRUE);
cf.whenComplete((r,t)-> remove(cf));
}
}
boolean remove(CompletionStage<?> cf) {

5
src/java.net.http/share/classes/jdk/internal/net/http/MultiExchange.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -242,7 +242,8 @@ class MultiExchange<T> {
result.complete(this.response);
}
});
return result;
// ensure that the connection is closed or returned to the pool.
return result.whenComplete(exch::nullBody);
}
private CompletableFuture<HttpResponse<T>>