code: @Override
  	public IHttpTransport getTransport() {
  		 IAggregatorExtension ext = getExtensions(IHttpTransportExtensionPoint.ID).iterator().next();
  		 return (IHttpTransport)(ext != null ? ext.getInstance() : null);
  	}
docs: /* (non-Javadoc)
  @see com.ibm.jaggr.service.IAggregator#getTransport()