Github enterprise returns 404 http://mygithubserver.com/api/v3/rate_limit and the body of this request is

. This is the expected behavior of github since there is no limit for white listed users, so it returns 404 and a friendly message.

This link has an exemple of this problem affecting other application:
https://github.com/joomla/joomla-framework/issues/280

ghprb doesn't see that way, It raises an exception as follows:

Mar 31, 2014 3:39:15 PM SEVERE org.jenkinsci.plugins.ghprb.GhprbRepository checkState
Error while accessing rate limit API
java.io.FileNotFoundException: http://mygithubserver.com/api/v3/rate_limit
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1610)
at org.kohsuke.github.Requester.parse(Requester.java:298)
at org.kohsuke.github.Requester._to(Requester.java:175)
at org.kohsuke.github.Requester.to(Requester.java:141)
at org.kohsuke.github.GitHub.getRateLimit(GitHub.java:220)
at org.jenkinsci.plugins.ghprb.GhprbRepository.checkState(GhprbRepository.java:57)
at org.jenkinsci.plugins.ghprb.GhprbRepository.check(GhprbRepository.java:77)
at org.jenkinsci.plugins.ghprb.Ghprb.run(Ghprb.java:72)
at org.jenkinsci.plugins.ghprb.GhprbTrigger.run(GhprbTrigger.java:181)
at hudson.triggers.Trigger.checkTriggers(Trigger.java:261)
at hudson.triggers.Trigger$Cron.doRun(Trigger.java:209)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)

ghprb should handle 404 as unlimit in this request, since an user in white list, doesn't have a limit.