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java.lang.IllegalArgumentException: host parameter is null at org.apache.commons.httpclient.HttpConnection.<init>( at org.apache.commons.httpclient.HttpConnection.<init>( at org.apache.commons.httpclient.SimpleHttpConnectionManager.getConnectionWithTimeout( at org.apache.commons.httpclient.HttpMethodDirector.executeMethod( at org.apache.commons.httpclient.HttpClient.executeMethod( at org.apache.commons.httpclient.HttpClient.executeMethod( at org.gftp.FlickrDownload.IOUtils.getRemoteFilename( at org.gftp.FlickrDownload.IOUtils.getVideoExtension( at org.gftp.FlickrDownload.AbstractSet.processPhoto( at at org.gftp.FlickrDownload.AbstractSet.createSetlevelXml( at org.gftp.FlickrDownload.Sets.downloadAllPhotos( at org.gftp.FlickrDownload.FlickrDownload.main(