When attempting to download a new plugin through the plugin update center,
Hudson receives an UnknownHostException. I believe this is becuase of our
internet proxy blocking the connection. However, I cannot determine how to
tell Hudson what the proxy setting is. Below is the actual message I am
getting:

*
Checking internet connectivity

*
java.net.UnknownHostException: www.google.com
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.http.HttpClient.(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:788)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:767)
at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:654)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:977)
at
hudson.model.UpdateCenter$ConnectionCheckJob.testConnection(UpdateCenter.java:376)
at
hudson.model.UpdateCenter$ConnectionCheckJob.run(UpdateCenter.java:358)
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$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)

FindBugs Plugin
Failure

java.net.UnknownHostException: hudson.dev.java.net
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$6.run(HttpURLConnection.java:1296)
at java.security.AccessController.doPrivileged(Native Method)
at
sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1290)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:944)
at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:234)
at hudson.model.UpdateCenter$InstallationJob.run(UpdateCenter.java:418)
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$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.UnknownHostException: hudson.dev.java.net
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.protocol.https.HttpsClient.(HttpsClient.java:271)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:328)
at
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:172)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:767)
at
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:158)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:977)
at
sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2031)
at java.net.URLConnection.getHeaderFieldInt(URLConnection.java:579)
at java.net.URLConnection.getContentLength(URLConnection.java:474)
at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getContentLength(HttpsURLConnectionImpl.java:378)
at hudson.model.UpdateCenter$InstallationJob.run(UpdateCenter.java:417)
... 6 more