Go to file
jaymode f0c76cacc3 Replace reflective access of Throwable#addSuppressed with version guarded access
Motivation:

In environments with a security manager, the reflective access to get the reference to
Throwable#addSuppressed can cause issues that result in Netty failing to load. The main
motivation in this pull request is to remove the use of reflection to prevent issues in
these environments.

Modifications:

ThrowableUtil no longer uses Class#getDeclaredMembers to get the Method that references
Throwable#addSuppressed and instead guards the call to Throwable#addSuppressed with a
Java version check.

Additionally, a annotation was added that suppresses the animal sniffer java16 signature
check on the given method. The benefit of the annotation is that it limits the exclusion
of Throwable to just the ThrowableUtil class and has string text indicating the reason
for suppressing the java16 signature check.

Result:

Netty no longer requires the use of Class#getDeclaredMethod for ThrowableUtil and will
work in environments restricted by a security manager without needing to grant reflection
permissions.

Fixes #7614
2018-01-25 19:56:17 +01:00
.github Use GitHub Issue/PR Template Feature 2016-12-07 11:40:26 -08:00
all [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
bom [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
buffer HttpResponseStatus object allocation reduction 2018-01-24 22:01:52 -08:00
codec Use FastThreadLocal for CodecOutputList 2018-01-23 11:34:28 +01:00
codec-dns [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-http Fix HttpPostMultipartRequestDecoder.splitMultipartHeader() String index out of range: -1 with empty header 2018-01-25 14:03:35 +01:00
codec-http2 HttpResponseStatus object allocation reduction 2018-01-24 22:01:52 -08:00
codec-memcache [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-mqtt [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-redis [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-smtp [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-socks [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
codec-stomp Reduce memory allocations in StompSubframeDecoder.readHeaders 2018-01-23 15:27:57 +01:00
codec-xml [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
common Replace reflective access of Throwable#addSuppressed with version guarded access 2018-01-25 19:56:17 +01:00
dev-tools [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +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 2018-01-21 12:53:51 +00:00
handler [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
handler-proxy [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
license Remove reference to akka code and ArrayDeque which is not part of netty anymore 2017-03-07 21:30:51 +01:00
microbench Use FastThreadLocal for CodecOutputList 2018-01-23 11:34:28 +01:00
resolver [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
resolver-dns Fix race-condition when using DnsCache in DnsNameResolver 2018-01-23 08:04:33 +01:00
tarball [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
testsuite [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
testsuite-autobahn [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
testsuite-http2 [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport DefaultChannelPipeline will not invoke handler if events are fired from handlerAdded 2018-01-24 10:32:48 +01:00
transport-native-epoll [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-native-kqueue [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-native-unix-common [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-native-unix-common-tests [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-rxtx [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-sctp [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
transport-udt [maven-release-plugin] prepare for next development iteration 2018-01-21 12:53:51 +00:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.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
NOTICE.txt Remove reference to akka code and ArrayDeque which is not part of netty anymore 2017-03-07 21:30:51 +01:00
pom.xml Replace reflective access of Throwable#addSuppressed with version guarded access 2018-01-25 19:56:17 +01:00
README.md Adding stable JDK9 module names that follow reverse-DNS style 2017-11-29 11:50:24 +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.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.