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java.net.SocketTimeoutException: connect timed out	at java.net.PlainSocketImpl.socketConnect(Native Method)	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)	at java.net.Socket.connect(Socket.java:589)	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)	at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)	at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)	at sun.net.www.http.HttpClient.(HttpClient.java:211)	at sun.net.www.http.HttpClient.New(HttpClient.java:308)	at sun.net.www.http.HttpClient.New(HttpClient.java:326)	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1168)	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1104)	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:998)	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:932)	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1512)	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)	at hudson.model.DownloadService.loadJSON(DownloadService.java:166)	at hudson.model.UpdateSite.updateDirectlyNow(UpdateSite.java:176)	at hudson.model.UpdateCenter.updateDefaultSite(UpdateCenter.java:2165)	at jenkins.install.SetupWizard.init(SetupWizard.java:167)	at jenkins.install.InstallState$3.initializeState(InstallState.java:105)	at jenkins.model.Jenkins.setInstallState(Jenkins.java:998)	at jenkins.install.InstallUtil.proceedToNextStateFrom(InstallUtil.java:94)	at jenkins.model.Jenkins.(Jenkins.java:915)	at hudson.model.Hudson.(Hudson.java:85)	at hudson.model.Hudson.(Hudson.java:81)	at hudson.WebAppMain$3.run(WebAppMain.java:227)