Gallery 1.6 Applet Problem

The following information is required to get an answer:
Get this information from the PHP diagnostic (in the configuration wizard).
Gallery URL (optional but very useful): http://gallery.shadownetworks.org
Gallery version: 1.6-RC1-svn-b84
Apache version: 2.0.58-r2
PHP version (don't just say PHP 4, please): PHP Version 5.2.2
Graphics Toolkit: ImageMagick 6.3.4
Operating system: Gentoo (2.6.19 Kernel)
Web browser/version (if applicable): Firefox 2.0.0.2

I seem to be having an issue with the applet uploading feature on my gallery. It loads and initializes, when upload is pressed, a dialog box informs it's working on image N of M, and then just sticks there. I have included a Java error log snippet below.

Exception in thread "Thread-11" java.lang.NullPointerException
	at HTTPClient.HTTPConnection.assembleHeaders(HTTPConnection.java:3648)
	at HTTPClient.HTTPConnection.sendRequest(HTTPConnection.java:2882)
	at HTTPClient.HTTPConnection.handleRequest(HTTPConnection.java:2820)
	at HTTPClient.HTTPConnection.setupRequest(HTTPConnection.java:2612)
	at HTTPClient.HTTPConnection.Post(HTTPConnection.java:1107)
	at HTTPClient.HTTPConnection.Post(HTTPConnection.java:1067)
	at HTTPClient.HTTPConnection.Post(HTTPConnection.java:989)
	at HTTPClient.HTTPConnection.Post(HTTPConnection.java:962)
	at com.gallery.GalleryRemote.GalleryComm2.requestResponse(GalleryComm2.java:1367)
	at com.gallery.GalleryRemote.GalleryComm2$GalleryTask.login(GalleryComm2.java:382)
	at com.gallery.GalleryRemote.GalleryComm2$GalleryTask.run(GalleryComm2.java:281)
	at java.lang.Thread.run(Unknown Source)
  16406|TRACE|GalComm   |Sending cookie: GallerySession=2e51e0bb96ae4691fca32ade94873608; path=/; domain=.www.shadownetworks.org
Applet stop
Shutting down Gallery Remote