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RELEASE_NOTES.txt
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Release 4.2.1
-------------------
HttpClient 4.2.1 (GA) is a bug fix release that addresses a number of issues reported since
release 4.2.
Users of HttpClient 4.2 are advised to upgrade.
Changelog
-------------------
* [HTTPCLIENT-1209] Redirect URIs are now normalized.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1202] ResponseCachingPolicy should honor explicit cache-control
directives for other status codes
Contributed by Jon Moore <jonm at apache.org>
* [HTTPCLIENT-1199] DecompressingHttpClient strips content from entity enclosing requests
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1198] HttpHost is not set in HttpContext in CachingHttpClient.
Contributed by Jon Moore <jonm at apache.org>
* [HTTPCLIENT-1200] DecompressingHttpClient fails to generate correct HttpHost context attribute.
Contributed by Guillaume Castagnino <casta+jira at xwing.info>
* [HTTPCLIENT-1192] URIBuilder encodes query parameters twice.
Contributed by Oleg Kalnichevski <olegk at apache.org> and Sebastian Bazley <sebb at apache.org>.
* [HTTPCLIENT-1196] Fixed NPE in UrlEncodedFormEntity constructor thrown if charset is null.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1193] Fixed regression in the route tracking logic of the default connection manager
causing cross-site redirect failures.
Contributed by Oleg Kalnichevski <olegk at apache.org>
Release 4.2
-------------------
This is the first stable (GA) release of HttpClient 4.2. The most notable enhancements included
in this release are:
* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
only the most fundamental functions of HttpClient and is intended for relatively simple use cases
that do not require the full flexibility of HttpClient. However, the fluent API almost fully
relieves the users from having to deal with connection management and resource deallocation.
* Redesigned and rewritten connection management code.
* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
and retry authentication with a fall-back scheme in case the primary one fails. This can be
important for compatibility with Microsoft products that are often configured to use
SPNEGO/Kerberos as the preferred authentication scheme.
Changelog
-------------------
* [HTTPCLIENT-1187] If a revalidation response is deemed too old CachingHttpClient fails to
consume its content resulting in a connection leak.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1186] State of newly created connections in the connection pool is not always
correctly updated potentially allowing those connections to be leased to users with a different
security context.
Contributed by Ralf Poehlmann <rpn at methodpark.de>
* [HTTPCLIENT-1179] Upgraded Commons Codec dependency to version 1.6
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1177] always remove fragments from request URIs
Contributed by Oleg Kalnichevski <olegk at apache.org>
Incompatible changes
--------------------
[Compared to release version 4.1.3]
The following fields have been deprecated for some time now and have been deleted:
org.apache.http.client.params.ClientPNames#CONNECTION_MANAGER_FACTORY
org.apache.http.impl.cookie.BrowserCompatSpec#DATE_PATTERNS
The following methods have been deprecated for some time now and have been deleted:
org.apache.http.client.params.ClientParamBean#setConnectionManagerFactory(org.apache.http.conn.ClientConnectionManagerFactory)
org.apache.http.client.protocol.ClientContextConfigurer#setAuthSchemePref(java.util.List)
org.apache.http.entity.mime.content.FileBody#writeTo(java.io.OutputStream, int)
org.apache.http.entity.mime.content.InputStreamBody#writeTo(java.io.OutputStream, int)
org.apache.http.entity.mime.content.StringBody#writeTo(java.io.OutputStream, int)
The following classes have been deprecated for some while now and have been deleted:
org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.AbstractConnPool no longer implements interface org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.ConnPoolByRoute no longer implements interface org.apache.http.impl.conn.tsccm.RefQueueHandler
org.apache.http.impl.conn.tsccm.RefQueueWorker
Release 4.2 BETA1
-------------------
This is the first BETA release of HttpClient 4.2. This release completes development of several
notable enhancements in HttpClient:
* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
only the most fundamental functions of HttpClient and is intended for relatively simple use cases
that do not require the full flexibility of HttpClient. However, the fluent API almost fully
relieves the users from having to deal with connection management and resource deallocation.
* Redesigned and rewritten connection management code. As of release 4.2 HttpClient will be using
pooling connection manager per default.
* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
and retry authentication with a fall-back scheme in case the primary one fails. This can be
important for compatibility with Microsoft products that are often configured to use
SPNEGO/Kerberos as the preferred authentication scheme.
Changelog
-------------------
* [HTTPCLIENT-1164] Compressed entities are not being cached properly.
Contributed by Jon Moore <jonm at apache dot org>.
* [HTTPCLIENT-1154] MemcachedHttpCacheStorage should allow client to
specify custom prefix string for keys.
Contributed by Jon Moore <jonm at apache dot org>.
* [HTTPCLIENT-1153] MemcachedHttpCacheStorage uses URL as cache key;
shouldn't due to fixed maximum-length memcached keys.
Contributed by Jon Moore <jonm at apache dot org>.
* [HTTPCLIENT-1157] MemcachedHttpCacheStroage should throw IOExceptions
instead of RuntimeExceptions.
Contributed by James Miller <jamesmiller01 at gmail dot com>.
* [HTTPCLIENT-1152] MemcachedHttpCacheStorage should verify class of
returned object before casting.
Contributed by Rajika Kumarasiri <rajika at wso2 dot com>.
* [HTTPCLIENT-1155] CachingHttpClient fails to ensure that the response content gets fully consumed
when using a ResponseHandler, which can potentially lead to connection leaks.
Contributed by James Miller <jamesmiller01 at gmail dot com>
* [HTTPCLIENT-1147] When HttpClient-Cache cannot open cache file, should act like miss.
Contributed by Joe Campbell <joseph.r.campbell at gmail.com>
* [HTTPCLIENT-1137] Values for the Via header are cached and reused by httpclient-cache.
Contributed by Alin Vasile <alinachegalati at yahoo dot com>
* [HTTPCLIENT-1142] Infinite loop on NTLM authentication failure.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1143] CachingHttpClient leaks connections with stale-if-error.
Contributed by James Miller <jamesmiller01 at gmail dot com>
Release 4.2 ALPHA1
-------------------
This is the first ALPHA release of HttpClient 4.2. The 4.2 branch enhances HttpClient in several
key areas and includes several notable features and improvements:
* New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes
only the most fundamental functions of HttpClient and is intended for relatively simple use cases
that do not require the full flexibility of HttpClient. However, the fluent API almost fully
relieves the users from having to deal with connection management and resource deallocation.
* Redesigned and rewritten connection management code. As of release 4.2 HttpClient will be using
pooling connection manager per default.
* Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication
scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges
and retry authentication with a fall-back scheme in case the primary one fails. This can be
important for compatibility with Microsoft products that are often configured to use
SPNEGO/Kerberos as the preferred authentication scheme.
Please note that new features included in this release are still considered experimental and
their API may change in the future ALPHA releases.
Changelog
-------------------
* [HTTPCLIENT-1128] SystemDefaultHttpClient (HttpClient implementation initialized using system
properties).
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1135] RandomAccessFile mode 'w' used by HttpClientCache is not valid.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1131] HttpClient to authenticate preemptively using BASIC scheme if a userinfo
attribute is specified in the request URI.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1134] make BasicResponseHandler consume response content in case of an unsuccessful
result (status code >= 300).
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1132] ProxyClient implementation.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1127] fixed dead-lock between SingleClientConnManager and AbstractPooledConnAdapter.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1107] Auth framework redesign.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1116] ResponseCachingPolicy uses integers for sizes
Contributed by Greg Bowyer <gbowyer at fastmail.co.uk >
* [HTTPCLIENT-1123] Support for pluggable DNS resolvers.
Contributed by Alin Vasile <alinachegalati at yahoo dot com>
* [HTTPCLIENT-1120] DefaultHttpRequestRetryHandler#retryRequest should not retry aborted requests.
Contributed by Alin Vasile <alinachegalati at yahoo dot com>
* Support for auth-int qop (quality of protection) option in Digest auth scheme.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1076] Fluent facade API (Google summer of code 2011 project).
Contributed by Xu Lilu <cookieme at gmail.com>
* UriBuilder implementation.
Contributed by Xu Lilu <cookieme at gmail.com>
* Redesign of connection management classes based on new pooling components from HttpCore.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1111] Added #prepareSocket method to SSLSocketFactory.
Contributed by Pasi Eronen <pe at iki.fi>
* Added #reset() and #releaseConnection() methods to HttpRequestBase.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1105] AutoRetryHttpClient: built-in way to do auto-retry for certain status codes.
Contributed by Dan Checkoway <dcheckoway at gmail.com>
* [HTTPCLIENT-1094] Digest auth scheme refactoring.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Lax implementation of RedirectStrategy.
Contributed by Bartosz Firyn <songo.bercik at interia.pl>
* [HTTPCLIENT-1044] HttpRequestRetryHandler implementation compliant with the definition of
idempotent methods given in the RFC 2616.
Contributed by Oleg Kalnichevski <olegk at apache.org>
Release 4.1.2
-------------------
The HttpClient 4.1.2 is a bug fix release that addresses a number of non-critical issues reported
since release 4.1.1.
* [HTTPCLIENT-1100] Missing Content-Length header makes cached entry invalid
Contributed by Bart Robeyns <bart dot robeyns at gmail dot com>
* [HTTPCLIENT-1098] Avoid expensive reverse DNS lookup on connect timeout exception.
Contributed by Thomas Boettcher <tboett at gmail.com>
* [HTTPCLIENT-1097] BrowserCompatHostnameVerifier and StrictHostnameVerifier should handle
wildcards in SSL certificates better.
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-1092] If ClientPNames.VIRTUAL_HOST does not provide the port, derive it from the
current request.
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-1087] NTLM proxy authentication fails on retry if the underlying connection is closed
as a result of a target authentication failure.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1079] Fixed Kerberos cross-realm support
Contributed by Michael Osipov <1983-01-06 at gmx.net>
* [HTTPCLIENT-1078] Decompressing entities (DeflateDecompressingEntity, GzipDecompressingEntity)
do not close content stream in #writeTo() method.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1075] Decompressing entities (DeflateDecompressingEntity, GzipDecompressingEntity)
do not correctly handle content streaming.
Contributed by James Abley <james.abley at gmail.com>
* [HTTPCLIENT-1051] Avoid reverse DNS lookups when opening SSL connections by IP address.
Contributed by Oleg Kalnichevski <olegk at apache.org>
Release 4.1.1
-------------------
HttpClient v4.1.1 is a bug fix release that addresses a number of issues reported since
release 4.1, including one critical security issue (HTTPCLIENT-1061). All users of HttpClient 4.0.x
and 4.1 are strongly encouraged to upgrade.
* [HTTPCLIENT-1069] HttpHostConnectException not correctly retried for direct and non-tunnelled
proxy connections.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1066] Changed the way URIUtils#rewriteURI handles multiple consecutive slashes in the
URI path component: multiple leading slashes will be replaced by one slash in order to avoid
confusion with the authority component. The remaining content of the path will not be modified.
(also see HTTPCLIENT-929).
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1061] Fixed critical bug causing Proxy-Authorization header to be sent to the target
host when tunneling requests through a proxy server that requires authentication.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1056] Fixed bug causing the RequestAuthCache protocol interceptor to generate
an invalid AuthScope instance when looking up user credentials for preemptive authentication.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1053] Fixed the way DigestScheme generates nonce-count values.
Contributed by Oleg Kalnichevski <olegk at apache.org>
Release 4.1
-------------------
The HttpClient 4.1 release builds upon the stable foundation laid by HttpClient 4.0 and adds several
functional improvements and popular features.
* Response caching conditionally compliant with HTTP/1.1 specification (full compliance with
MUST requirements, partial compliance with SHOULD requirements)
* Full support for NTLMv1, NTLMv2, and NTLM2 Session authentication. The NTLM protocol code
was kindly contributed by the Lucene Connector Framework project.
* Support for SPNEGO/Kerberos authentication.
* Persistence of authentication data between request executions within the same execution context.
* Support for preemptive authentication for BASIC and DIGEST schemes.
* Support for transparent content encoding. Please note transparent content encoding is not
enabled per default in order to avoid conflicts with already existing custom content encoding
solutions.
* Mechanism to bypass the standard certificate trust verification (useful when dealing with
self-signed certificates).
* Simplified configuration for connection managers.
* Transparent support for host multihoming.
IMPORTANT: please note that the HttpClient 3.x branch is now officially END OF LIFE and is no longer
maintained and supported by the Apache HttpComponents project.
Changelog
-------------------
* The public API for the caching module had a minor change between 4.1-beta and 4.1-GA to the
HttpCacheEntry class - the deprecated public Set<String> getVariantURIs() method and constructor
public HttpCacheEntry(Date requestDate, Date responseDate,
StatusLine statusLine, Header[] responseHeaders,
Resource resource, Set<String> variants)
were both removed. This will not affect you unless you are implementing new storage backends
that use the deprecated code and/or are implementing custom serializers for cache entries.
* Changed Browser-Compatibility and Best-Match cookie policies to emulate the behaviour of FireFox
more closely when parsing Netscape style cookies. Comma will no longer be treated as a header
element separator if Set-Cookie does not contain a Version attribute mandated by the
RFC2109 / RFC 2965 cookie specifications.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1036] StringBody has incorrect default for characterset. (Default changed
to US-ASCII)
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-975] Support stale-if-error and stale-while-revalidate extension directive (RFC5861).
Contributed by Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>,
Michajlo Matijkiw <michajlo_matijkiw at comcast.com>, and
Matthew Hawthorne <matthew_hawthorne at comcast.com>.
* [HTTPCLIENT-1033] HttpRoute.equals(Object o) is quite inefficient, as it does not take full
advantage of shortcut logic.
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-1030] Implement "ignoreCookies" CookieSpec
Contributed by Sebastian Bazley <sebb at apache.org>
Release 4.1 BETA1
-------------------
HttpClient 4.1 BETA1 finalizes the 4.1 API and brings a number of major improvements to the HTTP
caching module. This release also adds full support for NTLMv1, NTLMv2, and NTLM2 Session
authentication. The NTLM protocol code was kindly contributed by the Lucene Connector Framework
project.
Changelog
-------------------
* [HTTPCLIENT-1015] Support only-if-cached directive.
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>
* [HTTPCLIENT-990] Allow heuristic freshness caching.
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>
* [HTTPCLIENT-919] Support for NTLMv1, NTLMv2, and NTLM2 Session authentication.
Contributed by Karl Wright <karl.wright at nokia.com>
* [HTTPCLIENT-1008] Send all variants' ETags on "variant miss".
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com> and
Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>
* [HTTPCLIENT-1011] Handling of IOExceptions thrown by cache components.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-1003] Handle conditional requests in cache.
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com> and
Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>
* [HTTPCLIENT-1002] Stale connection check fails if wire logging is on.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-1000] Maximum connection lifetimes settings for ThreadSafeClientConnManager.
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>
* [HTTPCLIENT-960] HttpMultipart doesn't generate Content-Type header for binary parts in
BROWSER_COMPATIBLE mode.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-998] Cache should use both Last-Modified and ETag for validations when available.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-997] Cache module should handle out-of-order validations properly and unconditionally
refresh.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-994] Cache does not allow client to override origin-specified freshness using
max-stale.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-995] Cache returns cached responses even if validators not consistent with all
conditional headers.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-977] Memcached implementation for HttpCache.
Contributed by Mohammed Azeem Uddin <mohammedazeem_uddin at comcast.com>
* [HTTPCLIENT-992] cache should not generate stale responses to requests explicitly requesting
first-hand or fresh ones.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-991] cache module produces improperly formatted Warning header when revalidation
fails.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-989] DefaultHttpRequestRetryHandler no longer retries non-idempotent http methods
if NoHttpResponseException is thrown.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-988] Cache module should strip 'Content-Encoding: identity' from responses
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-987] cache module does not recognize equivalent URIs.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-986] cache module does not completely handle upstream Warning headers correctly
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-985] cache module should populate Via header to capture upstream and downstream protocols
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-984] Additional conditional compliance tests for the caching module for
Content-Encoding, Content-Location, Date, Expires, Server, Transfer-Encoding, and Vary headers.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-978] HTTP cache update exception handling
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>
* [HTTPCLIENT-981] CachingHttpClient returns a 411 respones when executing a POST (HttpPost)
request.
Contributed by Joe Campbell <joseph.r.campbell at gmail.com>
* [HTTPCLIENT-980] CachingHttpClient returns a 503 response when the backend HttpClient produces
an IOException.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-978] Ehcache based HTTP cache implementation
Contributed by Michajlo Matijkiw <michajlo_matijkiw at comcast.com>
* [HTTPCLIENT-967] support for non-shared (private) caches
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-969] BasicCookieStore#getCookies() to return a copy of Cookie list
Contributed by David Smiley <dsmiley at mitre.org>
* [HTTPCLIENT-965] Fixed problem with cache not honoring must-revalidate or
proxy-revalidate Cache-Control directives.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-964] 'no-cache' directives with field names are no longer transmitted
downstream.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-963] Fixed handling of 'Cache-Control: no-store' on requests.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-962] Fixed handling of Authorization headers in shared cache mode.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-961] Not all applicable URIs are invalidated on PUT/POST/DELETEs
that pass through client cache.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-958] Client cache no longer allows incomplete responses to be
passed on to the client.
Contributed by Jonathan Moore <jonathan_moore at comcast.com>
* [HTTPCLIENT-951] Non-repeatable entity enclosing requests are not correctly
retried when 'expect-continue' handshake is active.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-948] In rare circumstances the idle connection handling code
can leave closed connections in a inconsistent state.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-953] IllegalStateException thrown by RouteSpecificPool.
Contributed by Guillaume <gueugaie at gmail.com>
* [HTTPCLIENT-952] Trust store parameter is ignored by SSLSocketFactory
(affects version 4.1-alpha2 only)
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-937] CacheEntry made immutable; now uses immutable HttpEntity
to store cached content.
Contributed by David Mays <david_mays at comcast.com> and
Oleg Kalnichevski <olegk at apache.org>
Release 4.1 ALPHA2
-------------------
HttpClient 4.1 ALPHA2 fixes a number of non-severe bugs discovered since
the last release and introduces support for two frequently requested features:
* HTTP/1.1 response caching
* transparent support for host multihoming
* a mechanism to bypass the standard certificate trust verification
(useful when dealing with self-signed certificates)
Compatibility notes
-------------------
(1) Please note the HTTP caching module is still considered experimental and
its API may change significantly in the future releases.
(2) This release eliminates Mime4J as a dependency for the HttpMime module.
HttpMime is no longer binary compatible with the previous releases.
Full API and binary compatibility between minor versions of HttpMime will be
maintained as of 4.1 GA release.
Changelog
-------------------
* [HTTPCLIENT-936] Fixed bug causing NPE or an infinite loop in
the authentication code in case of a SPNEGO authentication failure.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-427] HTTP caching support
Contributed by Joe Campbell, David Cleaver, David Mays, Jon Moore, Brad Spenla
* Dropped dependency on Mime4j for HttpMime.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Extended SSLSocketFactory with a mechanism to bypass the standard certificate
trust verification (primarily to simplify dealing with self-signed
certificates)
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-898] Improved support for host multihoming
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-916] UsernamePasswordCredentials, NTUserPrincipal,
BasicClientCookie, BasicClientCookie2 and BasicCookieStore made Serializable.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-914] Upgraded Commons Codec dependency to version 1.4
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-903] Use ConcurrentHashMap instead of [Linked]HashMap for
thread-safety. Improve performance of AuthSchemeRegistry, CookieSpecRegistry
and SchemeRegistry classes.
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-902] HttpRequestRetryHandler not called on I/O exceptions
thrown when opening a new connection.
Contributed by Olivier Lamy <olamy at apache.org> and
Oleg Kalnichevski <olegk at apache.org>
Release 4.1 ALPHA1
-------------------
HttpClient 4.1 ALPHA1 builds on the stable 4.0 release and adds several
functionality improvements and new features.
* Simplified configuration of connection managers.
* Persistence of authentication data between request executions within
the same execution context.
* Support for SPNEGO/Kerberos authentication scheme
* Support for transparent content encoding. Please note transparent content
encoding is not enabled per default in order to avoid conflicts with
already existing custom content encoding solutions.
* 5 to 10% performance increase due to elimination of unnecessary Log object
lookups by short-lived components.
Please note all methods and classes added in this release and marked as
4.1 are API unstable and can change in the future 4.1 ALPHA releases.
Changelog
-------------------
* [HTTPCLIENT-889] 'expect: continue' handshake disabled per default.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-862] Extended client's redirect handling interface to allow
control of the content of the redirect.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-872] HttpClient can now persist authentication data between request
executions as long as they share the same execution context. It has also become
much easier to make HttpClient authenticate preemptively by pre-populating
authentication data cache.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-883] SO_TIMEOUT is not reset on persistent (re-used) connections.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-832] Distinguish cookie format errors from violations of
restrictions imposed by a cookie specification. In the latter case
CookieRestrictionViolationException will be thrown.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-523] Support for SPNEGO authentication scheme.
Contributed by Matthew Stevenson <mavricknzwork at yahoo.com>
* Simplified configuration of connection managers. Total connection maximum
and maximum connection per route limits can be set using methods of
the class instead of HTTP parameters.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Added parameters to define the order of preference for supported auth
schemes for target host and proxy authentication.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-875] DefaultClientConnectionOperator#openConnection doesn't
update the connection state if the connection socket changed after
the call to SocketFactory#connectSocket().
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-834] Transparent content encoding support.
Contributed by James Abley <james.abley at gmail.com>
Release 4.0.1
-------------------
This is a bug fix release that addresses a number of issues discovered since
the previous stable release. None of the fixed bugs is considered critical.
Most notably this release eliminates eliminates dependency on JCIP annotations.
This release is also expected to improve performance by 5 to 10% due to
elimination of unnecessary Log object lookups by short-lived components.
Changelog
-------------------
* [HTTPCLIENT-895] Eliminated Log lookups in short lived objects impairing
performance.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-885] URLEncodedUtils now correctly parses form-url-encoded
entities that specify a charset.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-884] UrlEncodedFormEntity now sets charset on the Content-Type
header.
Contributed by Jared Jacobs <jmjacobs at cs.stanford.edu>
* [HTTPCLIENT-883] SO_TIMEOUT is not reset on persistent (re-used) connections.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-882] Auth state is now correctly updated if a successful NTLM
authentication results in a redirect. This is a minor bug as HttpClient
manages to recover from the problem automatically.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-881] Fixed race condition in AbstractClientConnAdapter that makes
it possible for an aborted connection to be returned to the pool.
Contributed by Tim Boemker <tboemker at elynx.com> and
Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-866] Removed dependency on jcip-annotations.jar.
Contributed by Oleg Kalnichevski <olegk at apache.org>
and Sebastian Bazley <sebb at apache.org>
Release 4.0
-------------------
HttpClient 4.0 represents a complete, ground-up redesign and almost a complete
rewrite of the HttpClient 3.x codeline. This release finally addresses several
design flaws that existed since the 1.0 release and could not be fixed without
a major code overhaul and breaking API compatibility.
Architectural changes
---------------------
* Redesign of the HttpClient internals addressing all known major
architectural shortcomings of the 3.x codeline.
* Cleaner, more flexible and expressive API.
* More modular structure.
* Better performance and smaller memory footprint due to a more efficient HTTP
transport based on HttpCore.
* Implementation of cross-cutting HTTP protocol aspects through protocol
interceptors.
* Improved connection management, better handling of persistent connections,
support for stateful connections
* Pluggable redirect and authentication handlers.
* Improved support for sending requests via a proxy or a chain of proxies
* More flexible SSL context customization
* Reduced intermediate garbage in the process of generating HTTP requests
and parsing HTTP responses
Important notes
-------------------
* Future releases of HttpMime module may be binary incompatible with this
release due to possible API changes in Apache Mime4J. Apache Mime4J is
still being actively developed and its API is considered unstable.
* HttpClient 4.0 is not fully binary compatible with 4.0 BETA1 release.
Some protected variables in connection management class have been
made final in order to help ensure their thread safety:
org.apache.http.conn.BasicEofSensorWatcher#attemptReuse
org.apache.http.conn.BasicEofSensorWatcher#managedConn
org.apache.http.impl.conn.DefaultClientConnectionOperator#schemeRegistry
org.apache.http.impl.conn.DefaultHttpRoutePlanner#schemeRegistry
org.apache.http.impl.conn.ProxySelectorRoutePlanner#schemeRegistry
org.apache.http.impl.conn.SingleClientConnManager#alwaysShutDown
org.apache.http.impl.conn.SingleClientConnManager#connOperator
org.apache.http.impl.conn.SingleClientConnManager#schemeRegistry
org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager#connOperator
org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager#schemeRegistry
Bug fixes since 4.0 BETA2 release
-------------------
* [HTTPCLIENT-861] URIUtils#resolve is now compatible with all examples given
in RFC 3986.
Contributed by Johannes Koch <johannes.koch at fit.fraunhofer.de>
* [HTTPCLIENT-860] HttpClient no longer converts redirects of PUT/POST to GET
for status codes 301, 302, 307, as required by the HTTP spec.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-859] CookieIdentityComparator now takes path attribute into
consideration when comparing cookies.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* HttpClient will no longer send expired cookies back to the origin server.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-856] Proxy NTLM authentication no longer fails on a redirect to
a different host.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-841] Removed automatic connection release using garbage collection
due to a memory leak.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-853] Fixed bug causing invalid cookie origin port to be selected
when the target is accessed on the default port and the connection is
established via a proxy.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-852] Fixed bug causing automatically retried redirects fail with
CircularRedirectException.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Fixed problem with the default HTTP response parser failing to handle garbage
preceding a valid HTTP response.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* NonRepeatableRequestExceptions now include the cause that the original
request failed.
Contributed by Sam Berlin <sberlin at apache.org>
* [HTTPCLIENT-837] Fixed problem with the wire log skipping zero byte values
if read one byte at a time.
Contributed by Kirill Safonov <ksafonov at swiftteams.com>
* [HTTPCLIENT-823] 'http.conn-manager.max-total' parameter can be adjusted
dynamically. However, the size of existing connection pools per route,
once allocated, will not be adjusted.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-822] Default socket factories to rethrow SocketTimeoutException
as ConnectTimeoutException in case of connect failure due to a time out.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-813] Fixed default port resolution. Invalid ports no longer
get replaced with the default port value.
Contributed by Oleg Kalnichevski <olegk at apache.org>
Release 4.0 beta 2
-------------------
BETA2 is a maintenance release, which addresses a number of issues
discovered since the previous release.
The only significant new feature is an addition of an OSGi compliant
bundle combining HttpClient and HttpMime jars.
All upstream projects are strongly encouraged to upgrade.
* Fixed NPE in DefaultRequestDirector thrown when retrying a failed
request over a proxied connection.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-803] Fixed bug in SSL host verifier implementations
causing the SSL certificate to be rejected as invalid if the connection
is established using an IP address.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-806] DefaultHttpMethodRetryHandler will no longer retry
on ConnectExceptions.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* DigestScheme can use an arbitrary digest algorithm requested by the
target server (such as SHA) as long as this algorithm is supported by
the Java runtime.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Fixed parsing and validation of RFC2109 compliant Set-Cookie headers
by the Best-Match cookie spec.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Fixed bug that can cause a managed connection to be returned from the
pool in an inconsistent state.
Contributed by Oleg Kalnichevski <olegk at apache.org>
4.0 Beta 1
-------------------
BETA1 release brings yet another round of API enhancements and
improvements in the area of connection management. Among the most notable
ones is the capability to handle stateful connections such as persistent
NTLM connections and private key authenticated SSL connections.
This is the first API stable release of HttpClient 4.0. All further
releases in the 4.0 code line will maintain API compatibility with this
release.
There has been a number of important bug fixes since ALPHA4. All upstream
projects are encouraged to upgrade to the latest release.
Please note HttpClient currently provides only limited support for NTLM
authentication. For details please see NTLM_SUPPORT.txt.
-------------------
Changelog:
-------------------
* [HTTPCLIENT-790] Protocol interceptors are now correctly invoked when
executing CONNECT methods.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-668] Do not use static loggers.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-781] Respect Keep-Alive header's timeout value.
Contributed by Sam Berlin <sberlin at apache.org>
* [HTTPCLIENT-779] Top-level classes (HttpClient, and HttpGet, HttpPut
and similar HttpMethods) throw fewer checked exceptions.
Contributed by Sam Berlin <sberlin at apache.org>
* HttpClient will throw an exception if an attempt is made to retry
a request with a non-repeatable request entity.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Fixed request re-generation logic when retrying a failed request.
Auto-generated headers will no accumulate.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-424] Preemptive authentication no longer limited to BASIC
scheme only. HttpClient can be customized to authenticate preemptively
with DIGEST scheme.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-670] Pluggable hostname resolver.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-719] Clone support for HTTP request and cookie objects.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-776] Fixed concurrency issues with AbstractPoolEntry.
Contributed by Sam Berlin <sberlin at gmail.com>
* Resolved a long standing problem with HttpClient not taking into account
the user context when pooling / re-using connections. HttpClient now
correctly handles stateful / user specific connections such as persistent
NTLM connections and SSL connections with client side authentication.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-773] Improved handling of the 'expires' attribute by the
'Best Match' cookie spec.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Partial NTLM support (requires an external NTLM engine). For details see
NTLM_SUPPORT.txt
Contributed by Oleg Kalnichevski <olegk at apache.org>
* Redesigned local execution context management.
Contributed by Oleg Kalnichevski <olegk at apache.org>
--------------------------------------
Release 4.0 Alpha 4
-------------------
ALPHA4 marks the completion of the overhaul of the connection management
code in HttpClient. All known shortcomings of the old HttpClient 3.x
connection management API have been addressed.
NTLM authentication remains the only missing major feature in the new
codeline that prevents us from moving awards the API freeze.
There has been a number of important bug fixes since ALPHA3. All upstream
projects are encouraged to upgrade to the latest release.
-------------------
HttpClient 3.x features that have NOT yet been ported:
-------------------
* NTLM authentication scheme
-------------------
Changelog:
-------------------
* [HTTPCLIENT-765] String.toLowerCase() / toUpperCase() should specify
Locale.ENGLISH
Contributed by Sebastian Bazley <sebb at apache.org>
* [HTTPCLIENT-769] Do not pool connection marked non-reusable.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-763] Fixed problem with AbstractClientConnAdapter#abortConnection()
not releasing the connection if called from the main execution thread while
there is no blocking I/O operation.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-652] Added optional state attribute to managed client connections.
This enables connection managers to correctly handle stateful connections.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-673] Revised max connections per route configuration
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-753] Class Scheme and related classes moved to a separate package
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-757] Improved request wrapping in the DefaultClientRequestDirector.
This also fixed the problem with the default proxy set at the client level
having no effect.
Contributed by Oleg Kalnichevski <olegk at apache.org>
* [HTTPCLIENT-734] Request abort will unblock the thread waiting for a connection
Contributed by Sam Berlin <sberlin at gmail.com>
* [HTTPCLIENT-759] Ensure release of connections back to the connection manager
on exceptions.
Contributed by Sam Berlin <sberlin at gmail.com>
* [HTTPCLIENT-758] Fixed the use of generics in AbstractHttpClient
#removeRequestInterceptorByClass and #removeResponseInterceptorByClass