Snapshot builds are created from the current source in the SVN repository. They are assembled automatically by Jenkins and become available a few hours after the last change. They can be downloaded from here. In addition, the corresponding Maven artifacts are deployed automatically to the Apache snapshot repository. To use them as dependencies in your Maven project, add the following repository configuration to your POM file:

<repositories>
    <repository>
        <id>apache.snapshots</id>
        <name>Apache Snapshot Repository</name>
        <url>http://repository.apache.org/snapshots</url>
        <releases>
            <enabled>false</enabled>
        </releases>
    </repository>
</repositories>

If you also want to use snapshot versions of the Maven plugins for Axis, then you need to add that repository as a pluginRepository as well.