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You can download the complete WSO2 Carbon platform, which is recommended if you intend to modify the source. You can check out the complete source anonymously from SVN with the following commands (note that this version of the ESB is based on Carbon 4.0.5). The Carbon project comes in three sub projects: Orbit, Kernel, and Platform. Download and build them in that particular order.
Orbit:
$ svn checkout https://svn.wso2.org/repos/wso2/carbon/orbit/tags/4.0.5 wso2carbonKernel:
$ svn checkout https://svn.wso2.org/repos/wso2/carbon/kernel/tags/4.0.5 wso2carbonPlatform:
$ svn checkout https://svn.wso2.org/repos/wso2/carbon/platform/tags/4.0.5 wso2carbon Following are the commands you can run to create complete release artifacts of WSO2 ESB, including the binary and source distributions. If you only want to build the ESB, use the -Dproduct=esb option as shown. If you want to build the entire Carbon core project, omit the -Dproduct=esb option.
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If you are a committer, you can commit your changes using the following command (SVN will prompt you for your password):
$ svn commit --username your-username -m "A message"...