It sounds like HTTP::Daemon can't finish reading the request, for some reason. If you can upgrade LWP, I recommend trying that first. If that doesn't work, here's a patch that will improve the debugging output.

--- lib/Jellybean/Server/HTTP.pm~    2004-07-15 09:05:29.000000000 -07
+00
+++ lib/Jellybean/Server/HTTP.pm    2004-07-15 09:06:13.000000000 -070
+0
@@ -40,6 +40,9 @@
     my $base = $self->{Daemon}->url();
     my $peer = $conn->peerhost();
     my $req  = $conn->get_request( 1 );
+
+    croak( "Invalid connection: ", $conn->reason() ) unless $req;
+
     my $uri  = $req->uri();
     my @path = split('/', $uri->path() );
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