WSRFlite jars are available on a public repository. Using Maven, you can use WSRFlite for your own projects quite easily.
The following pom.xml snippet shows which repository to use and which dependencies to include.
<repositories>
<repository>
<id>vsgc-public</id>
<name>VSGC repository</name>
<url>http://zam904.zam.kfa-juelich.de/maven</url>
</repository>
</repositories>
<dependencies>
<!-- wsrflite core -->
<dependency>
<groupId>de.fzj.unicore.wsrflite</groupId>
<artifactId>wsrflite</artifactId>
<version>1.6</version>
</dependency>
</dependencies>
This will transitively add XFire, XMLBeans and all other dependencies to your project.