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Anuraag Agrawal 4cd39cc4b3 Filter DNS results so they only contain the expected type when multiple types are present. (#7875)
Motivation:

Currently, if a DNS server returns a non-preferred address type before the preferred one, then both will be returned as the result, and when only taking a single one, this usually ends up being the non-preferred type. However, the JDK requires lookups to only return the preferred type when possible to allow for backwards compatibility.

To allow a client to be able to resolve the appropriate address when running on a machine that does not support IPv6 but the DNS server returns IPv6 addresses before IPv4 addresses when querying.

Modification:

Filter the returned records to the expected type when both types are present.

Result:

Allows a client to run on a machine with IPv6 disabled even when a server returns both IPv4 and IPv6 results. Netty-based code can be a drop-in replacement for JDK-based code in such circumstances.

This PR filters results before returning them to respect JDK expectations.
2018-04-19 10:52:22 +02:00
.github Use GitHub Issue/PR Template Feature 2016-12-07 11:40:26 -08:00
.mvn/wrapper Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
all [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
bom [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
buffer Makes EmptyByteBuf#hashCode and AbstractByteBuf#hashCode consistent (#7870) 2018-04-16 12:11:42 +02:00
codec Extract common parts from if statements (#7831) 2018-04-11 14:36:56 +02:00
codec-dns [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
codec-http Fixes NPE in Corshandler for unauthorized prefligt requests (#7865) 2018-04-13 14:36:45 +02:00
codec-http2 Do not enforce arbitrary max header list size in HpackEncoder (#7853) 2018-04-16 14:27:36 -07:00
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common Fix eternal loop in Recycler.WeakOrderQueue.Head#run() that blocks ObjectCleaner thread (#7878) 2018-04-19 09:40:38 +02:00
dev-tools [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
docker Provide a Docker image for reproducible builds 2018-01-22 20:02:17 +01:00
example [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
handler Extract common parts from if statements (#7831) 2018-04-11 14:36:56 +02:00
handler-proxy [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
license Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
microbench [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
resolver [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
resolver-dns Filter DNS results so they only contain the expected type when multiple types are present. (#7875) 2018-04-19 10:52:22 +02:00
tarball [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
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testsuite-http2 [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
transport Only reset readIsPending if outboundBuffer is not empty. (#7874) 2018-04-19 09:39:16 +02:00
transport-native-epoll Added IP_TRANSPARENT option for UDP (#7872) 2018-04-17 09:07:02 +02:00
transport-native-kqueue [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
transport-native-unix-common [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
transport-native-unix-common-tests [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
transport-rxtx [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
transport-sctp Extract common parts from if statements (#7831) 2018-04-11 14:36:56 +02:00
transport-udt [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Use shaded dependency on JCTools instead of copy and paste 2016-06-10 13:19:45 +02:00
.travis.yml Travis CI branch whitelisting 2013-03-11 09:55:43 +09:00
CONTRIBUTING.md Move the pull request guide to the developer guide 2014-03-12 13:13:58 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Add the NOTICE of the forked portion of Apache Harmony 2018-01-30 11:22:51 +01:00
pom.xml [maven-release-plugin] prepare for next development iteration 2018-04-04 10:44:46 +00:00
README.md Provide an Automatic-Module-Name for the netty-all artifact fixes #7644 2018-01-27 20:31:16 +01:00
run-example.sh Add UptimeServer and adjust UptimeClient's code style. 2017-04-28 07:41:07 +02:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.