java.net.UnknownHostException: appengine.google.com

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Root Cause Analysis

  1. java.net.UnknownHostException

    appengine.google.com

    at java.net.PlainSocketImpl.connect()
  2. Java RT
    Socket.connect
    1. java.net.PlainSocketImpl.connect(PlainSocketImpl.java:195)
    2. java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    3. java.net.Socket.connect(Socket.java:529)
    3 frames
  3. Java JSSE
    BaseSSLSocketImpl.connect
    1. com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:559)
    2. com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:141)
    2 frames
  4. Java RT
    URL.openStream
    1. sun.net.NetworkClient.doConnect(NetworkClient.java:163)
    2. sun.net.www.http.HttpClient.openServer(HttpClient.java:395)
    3. sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
    4. sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:272)
    5. sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:329)
    6. sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:172)
    7. sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
    8. sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:158)
    9. sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1172)
    10. sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:234)
    11. java.net.URL.openStream(URL.java:1010)
    11 frames
  5. com.google.appengine
    UpdateCheck.maybePrintNagScreen
    1. com.google.appengine.tools.info.RemoteVersionFactory.getVersion(RemoteVersionFactory.java:76)
    2. com.google.appengine.tools.info.UpdateCheck.checkForUpdates(UpdateCheck.java:99)
    3. com.google.appengine.tools.info.UpdateCheck.doNagScreen(UpdateCheck.java:174)
    4. com.google.appengine.tools.info.UpdateCheck.maybePrintNagScreen(UpdateCheck.java:142)
    4 frames
  6. AppEngine Testing
    DevAppServerMain$StartAction.apply
    1. com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:289)
    1 frame
  7. com.google.appengine
    Parser$ParseResult.applyArgs
    1. com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
    1 frame
  8. AppEngine Testing
    DevAppServerMain.main
    1. com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:249)
    2. com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:225)
    2 frames