Hi,

It does seem to be an issue related to your server’s certificate being 
unable to match your host name. By any chance, would you be using a proxy? 

Alternatively, you can test if it works through another network.

On Thursday, October 13, 2016 at 6:23:59 AM UTC-4, Divya B wrote:
>
> Hi,
>
> I'm using Java GAE, suddenly today I cant able to upload my application 
> using "appcfg.cmd   update \war" command.
>
> I'm getting "CertificateException: No name matching appengine.google.com 
> found" error.
>
> I have also tried to upload the app after 
> deleting .appcfg_oauth2_tokens_java file but not luck. Please advise.
>
>
> *Error Trace:*
> Oct 13, 2016 3:44:21 PM 
> com.google.appengine.tools.info.RemoteVersionFactory getVersion
> INFO: Unable to access 
> https://appengine.google.com/api/updatecheck?runtime=java&release=1.9.30&timestamp=1446685788&api_versions=['1.0
> ']
> javax.net.ssl.SSLHandshakeException: 
> java.security.cert.CertificateException: No name matching 
> appengine.google.com found
>         at sun.security.ssl.Alerts.getSSLException(Unknown Source)
>         at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
>         at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
>         at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
>         at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown 
> Source)
>         at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
>         at sun.security.ssl.Handshaker.processLoop(Unknown Source)
>         at sun.security.ssl.Handshaker.process_record(Unknown Source)
>         at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
>         at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown 
> Source)
>         at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
>         at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
>         at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown 
> Source)
>         at 
> sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown 
> Source)
>         at 
> sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
>         at 
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
>         at 
> sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown 
> Source)
>         at java.net.URL.openStream(Unknown Source)
>         at 
> com.google.appengine.tools.info.RemoteVersionFactory.getVersion(RemoteVersionFactory.java:76)
>         at 
> com.google.appengine.tools.info.UpdateCheck.getApplicationVersionInfo(UpdateCheck.java:153)
>         at 
> com.google.appengine.tools.info.UpdateCheck.maybePrintNagScreen(UpdateCheck.java:361)
>         at com.google.appengine.tools.admin.AppCfg.<init>(AppCfg.java:188)
>         at com.google.appengine.tools.admin.AppCfg.<init>(AppCfg.java:127)
>         at com.google.appengine.tools.admin.AppCfg.main(AppCfg.java:123)
> Caused by: java.security.cert.CertificateException: No name matching 
> appengine.google.com found
>         at sun.security.util.HostnameChecker.matchDNS(Unknown Source)
>         at sun.security.util.HostnameChecker.match(Unknown Source)
>         at sun.security.ssl.X509TrustManagerImpl.checkIdentity(Unknown 
> Source)
>         at sun.security.ssl.X509TrustManagerImpl.checkIdentity(Unknown 
> Source)
>         at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown 
> Source)
>         at 
> sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
>         ... 20 more
>
> Reading application configuration data...
> Oct 13, 2016 3:44:22 PM 
> com.google.apphosting.utils.config.IndexesXmlReader readConfigXml
> INFO: Successfully processed 
> C:\Bala\Phonegap\svn\branches\GAE\serverNotification\war\WEB-INF\appengine-generated\datastore-indexes-auto.xml
>
>
> Beginning interaction for module default...
>
> javax.net.ssl.SSLHandshakeException: 
> java.security.cert.CertificateException: No name matching 
> appengine.google.com found
> Unable to update app: java.security.cert.CertificateException: No name 
> matching appengine.google.com found
> Please see the logs 
> [C:\Users\CHITTA~1\AppData\Local\Temp\appcfg3857449247097391609.log] for 
> further information.
>

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