When trying to work with Github enterprise and jenkins ghprb plugin, the webhook looks ok on github enterprise but in jenkins.log I see that there are exceptions that make the pull request trigger to fail.

Also, my github enterprise server is based on an ssl certificate, maybe that's the problem?

Jun 16, 2015 11:35:00 AM org.jenkinsci.plugins.ghprb.GhprbGitHubAuth getConnection
SEVERE: Unable to connect using credentials: fab49720-e9f1-4fac-aad0-f4de321a6b42
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1676)
at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1674)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1672)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1245)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at org.kohsuke.github.Requester.handleApiError(Requester.java:482)
at org.kohsuke.github.Requester._to(Requester.java:245)
at org.kohsuke.github.Requester.to(Requester.java:191)
at org.kohsuke.github.GitHub.getMyself(GitHub.java:261)
at org.kohsuke.github.GitHub.<init>(GitHub.java:137)
at org.kohsuke.github.GitHubBuilder.build(GitHubBuilder.java:195)
at org.jenkinsci.plugins.ghprb.GhprbGitHubAuth.getConnection(GhprbGitHubAuth.java:118)
at org.jenkinsci.plugins.ghprb.GhprbTrigger.getGitHub(GhprbTrigger.java:266)
at org.jenkinsci.plugins.ghprb.GhprbGitHub.get(GhprbGitHub.java:23)
at org.jenkinsci.plugins.ghprb.GhprbRepository.initGhRepository(GhprbRepository.java:61)
at org.jenkinsci.plugins.ghprb.GhprbRepository.check(GhprbRepository.java:88)
at org.jenkinsci.plugins.ghprb.Ghprb.run(Ghprb.java:134)
at org.jenkinsci.plugins.ghprb.GhprbTrigger.run(GhprbTrigger.java:204)
at hudson.triggers.Trigger.checkTriggers(Trigger.java:266)
at hudson.triggers.Trigger$Cron.doRun(Trigger.java:215)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:51)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1904)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:279)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:273)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1446)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:209)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:901)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:837)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1023)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1332)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1359)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1343)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at org.kohsuke.github.Requester.parse(Requester.java:447)
at org.kohsuke.github.Requester._to(Requester.java:224)
... 21 more
Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:350)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:260)
at sun.security.validator.Validator.validate(Validator.java:260)
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1428)
... 35 more
Caused by: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:208)
at java.security.cert.CertPathValidator.validate(CertPathValidator.java:279)
at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:345)
... 41 more