--- jk_isapi_plugin.c-original	2014-03-31 21:41:50.000000000 -0600
+++ jk_isapi_plugin.c-original	2015-04-21 12:59:40.920127100 -0600
@@ -3183,6 +3183,10 @@ 
     GET_SERVER_VARIABLE_VALUE_INT("SERVER_PORT", s->server_port, 80);
     GET_SERVER_VARIABLE_VALUE("SERVER_SOFTWARE", s->server_software);
     GET_SERVER_VARIABLE_VALUE_INT("SERVER_PORT_SECURE", s->is_ssl, 0);
+    
+    if (s->remote_user && !s->remote_user[0]) {
+        s->remote_user = NULL;      
+    }
 
     s->method = private_data->lpEcb->lpszMethod;
     /* Check for Transfer Encoding */