"jenkins.util.Timer [#10]" #346 daemon prio=5
 java.lang.Thread.State: RUNNABLE
 at java.net.SocketInputStream.socketRead0(Native Method)
 at java.net.SocketInputStream.read(SocketInputStream.java:129)
 at com.sun.net.ssl.internal.ssl.InputRecord.readFully(InputRecord.java:422)
 at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:460)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:863)
 - locked <0x1c04e1e3> (a java.lang.Object)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1188)
 - locked <0x48a0c74> (a java.lang.Object)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1215)
 at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1199)
 at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:434)
 at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:166)
 at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1195)
 - locked <0xea9b657> (a sun.net.www.protocol.https.DelegateHttpsURLConnection)
 at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:379)
 at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:318)
 at org.kohsuke.github.Requester.parse(Requester.java:447)
 at org.kohsuke.github.Requester._to(Requester.java:224)
 at org.kohsuke.github.Requester.to(Requester.java:191)
 at org.kohsuke.github.GitHub.getRateLimit(GitHub.java:243)
 at org.jenkinsci.plugins.ghprb.GhprbRepository.initGhRepository(GhprbRepository.java:54)
 at org.jenkinsci.plugins.ghprb.GhprbRepository.check(GhprbRepository.java:76)
 at org.jenkinsci.plugins.ghprb.Ghprb.run(Ghprb.java:104)
 at org.jenkinsci.plugins.ghprb.GhprbTrigger.run(GhprbTrigger.java:165)
 at hudson.triggers.Trigger.checkTriggers(Trigger.java:266)
 at hudson.triggers.Trigger$Cron.doRun(Trigger.java:214)
 at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
 at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
 at java.lang.Thread.run(Thread.java:662)

 Locked ownable synchronizers:
 - <0x6df9460b> (a java.util.concurrent.locks.ReentrantLock$NonfairSync)

def cron = new hudson.triggers.Trigger.Cron();
jenkins.util.Timer.get().scheduleAtFixedRate(cron, 0, cron.getRecurrencePeriod(), java.util.concurrent.TimeUnit.MILLISECONDS);