the bpel example has a empty folder that should not be there

I am working on bpel project examples: http://anonsvn.jboss.org/repos/jbosstools/workspace/grid/bpel-examples/
If I download a zip from the link, for example: HelloWorld.zip, then import into eclipse worksapce, it is ok.
But if I use project example framework to import the project zip, the HelloWorld project will have a empty sub-folder:HelloWorld, it should not be there.