hudson.util.IOException2

There are no available Samebug tips for this exception. Do you have an idea how to solve this issue? A short tip would help users who saw this issue last week.

  • When I try to update behind proxy, jenkins can not connect to update center. hudson.util.IOException2: Failed to download from http://updates.jenkins-ci.org/download/plugins/dashboard-view/2.3/dashboard-view.hpi at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:676) at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1015) at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1165) at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:994) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1491) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1485) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:646) ... 9 more Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1446) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2300) at java.net.URLConnection.getHeaderFieldInt(URLConnection.java:579) at java.net.URLConnection.getContentLength(URLConnection.java:474) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:645) ... 9 more
    via by Allen Cheng,
  • When I try to update behind proxy, jenkins can not connect to update center. hudson.util.IOException2: Failed to download from http://updates.jenkins-ci.org/download/plugins/dashboard-view/2.3/dashboard-view.hpi at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:676) at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1015) at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1165) at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:994) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1491) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1485) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:646) ... 9 more Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1446) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2300) at java.net.URLConnection.getHeaderFieldInt(URLConnection.java:579) at java.net.URLConnection.getContentLength(URLConnection.java:474) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:645) ... 9 more
    via by Allen Cheng,
  • db:: 4.09::Unknown server version 3d
    via by Unknown author,
    • hudson.util.IOException2: Failed to download from http://updates.jenkins-ci.org/download/plugins/dashboard-view/2.3/dashboard-view.hpi at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:676) at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1015) at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1165) at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:994) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1491) at java.security.AccessController.doPrivileged(Native Method) at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1485) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:646) ... 9 more Caused by: java.net.ProtocolException: Server redirected too many times (20) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1446) at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2300) at java.net.URLConnection.getHeaderFieldInt(URLConnection.java:579) at java.net.URLConnection.getContentLength(URLConnection.java:474) at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:645) ... 9 more

    Users with the same issue

    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    Unknown visitor
    Unknown visitor1 times, last one,
    7 more bugmates