Gitlab cannot open git-upload-pack error

eclipse egit gitlab
Laurent Le Moux picture Laurent Le Moux · Sep 26, 2014 · Viewed 27.1k times · Source

I have been using Gitlab without problems for a couple of months now. But, since yesterday, I can not "reach" (fetch, push,...) Gitlab from my Eclipse IDE anymore.

No matter whether I'm working in my firm (could have been a proxy problem) or at home.

I get the following error message :

https://gitlab.com/XXX/XXX.git: 
    cannot open git-upload-pack
    cannot open git-upload-pack

Looking at my Eclipse .log, the cause is :

Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.recvAlert(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.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at org.eclipse.jgit.transport.http.JDKHttpConnection.getResponseCode(JDKHttpConnection.java:98)
    at org.eclipse.jgit.util.HttpSupport.response(HttpSupport.java:168)
    at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:460)
    ... 10 more

Adding http.sslVerify=false in my Eclipse/Git configuration did not help...

Any idea why this is (suddenly) happening?

Answer

jgibson picture jgibson · Oct 6, 2014

I've encountered a similar error with another Gitlab server. I dug into it and discovered that all of the available ciphers on the server were at least 256 bits. Standard Oracle Java ships with crypto that's restricted to 128 bits for some algorithms. After installing the unlimited strength crypto package from Oracle the issue went away.

Almost forgot, the unlimited strength package is only legally available in the US. If you're outside of the US then I think that OpenJDK will work instead.

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