This repository contains a modified version of OpenJDK9 adding support of SCTP protocol under OS X by utilizing sctplab/SCTP_NKE_ElCapitan project (SCTP implementation of the FreeBSD kernel modified to work within the Mac OS X kernel infrastructure as a network kernel extension).
Making JVM supports SCTP also in OS X, gave me the idea to try the same approach to try to add Windows SCTP support as well, by using any of the SCTP drivers currently available for this operating system. For now, let's cross our fingers...
- Linux (native support by all JVMs, no need to use this project)
- OS X (tested with El Capitan, working fine)
- Windows x64 *(not currently supported but planned, i'm trying to see what i can do with any of the available Sctp Drivers for Windows)
I started this project in order to make my life even easier when working with the RestComm/jss7 stack which utilizes RestComm/sctp. Since i'm working using OS X, it was always difficult to deploy my telco app all the time to a linux box in order to test it, since all JVMs natively supports SCTP operations, so, i decided to modify the JVM including native code and NIO java code in order to add the so-much-wanted SCTP support for OS X. At first I was not sure that this effort will succeed but finally i was wrong. This JVM is based on JDK9 sources, everything is untouched except the OS X part of SCTP protocol (which till now always threw "Unsupported Platform" Exceptions).
If you want to run an application that uses SCTP protocol and you don't want to build the JVM from sources using this repo, you may download my build here.
ATTENTION: This JVM's SCTP requires installation of SCTP NKE. In order to be able to use SCTP protocol under OSX, you should follow the protocol installation guide as described at sctplab/SCTP_NKE_ElCapitan
cd openjdk9-sctp
./configure --disable-warnings-as-errors
make clean images
Then, you may find both JRE and JDK builds of this JVM under images subdirectory of the directory you will find under build directory. It would be something like build/macosx-x86_64-normal-server-release/images/*
- A cleanup of this project, especially mercurial (hg) related leftover files, since this version of JVM will be git based. I tried to clean-up the most but i am pretty sure that other mercurial leftovers are here :-)
- Extend SCTP features of this JVM also for the Windows platform.
Inherits OpenJDK's license as seen in LICENSE and (The GNU General Public License (GPL)) and THIRD_PARTY_README files.
- I am a multilingual developer (regarding this JVM patch i can asure you that i am a pretty good JAVA developer and a moderate to good c developer, good enough to patch the JVM but not that good to build an OS from scratch). The above statement does not means that i am able to read and understand a bytecode stream like this: 03 3b 84 00 01 1a 05 68 3b a7 ff f9 without using a good manual :) Patching a JVM to add a new feature is far away easier than reading directly bytecode at all.
- I initially modified this JVM just for my everyday needs but since it is always worth to share your toolkits with others (at last i am using a lot of tools freely provided by others everyday), i decided to share this project to everyone. As an old Windows user and now as an OSX user i always wanted a JVM able to work with SCTP in OSes other than Linux, something that has never been created. So after so many years, i decided to do it my self.
- I do not own anything. Java and all trademarks related to this project are owned by the copyright holders of the OpenJDK, Oracle e.t.c. I am just responsible for the patched parts under jdk.sctp/macosx folder and for all these source files are based to the source files of jdk.sctp/unix folder.
- I hope this project helps you to develop great JAVA based apps that utilizes SCTP protocol, directly from OSX and soon from Windows without the need to deploy your project all the time to a linux box in order to see if and how it works.
My name is Diamantis Kyriakakis and you may contact me by using any of the following:
- Email: [email protected]
- Linked-In: https://www.linkedin.com/in/diamantis-kyriakakis-131b9a66