Motivation: HTTP/2 codec does not properly test exception passed to exceptionCaught() for instanceof Http2Exception (since the exception will always be wrapped in a PipelineException), so it will never properly handle Http2Exceptions in the pipeline. Also if any streams are present, the connection close logic will execute twice when a pipeline exception. This is because the exception logic calls ctx.close() which then triggers the handleInActive() logic to execute. This clears all of the remaining streams and then attempts to run the closeListener logic (which has already been run). Modifications: Changed exceptionCaught logic to properly extract Http2Exception from the PipelineException. Also added logic to the closeListener so that is only run once. Changed Http2CodecUtil.toHttp2Exception() to avoid NPE when creating an exception with cause.getMessage(). Refactored Http2ConnectionHandler to more cleanly separate inbound and outbound flows (Http2ConnectionDecoder/Http2ConnectionEncoder). Added a test for verifying that a pipeline exception closes the connection. Result: Exception handling logic is tidied up.
Netty Project
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
Links
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:
- Latest stable Oracle JDK 7
- Latest stable Apache Maven
- If you are on Linux, you need additional development packages installed on your system, because you'll build the native transport.
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
The 'master' branch is where the development of the latest major version lives on. The development of all other 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.