Windows Self-Hosted Runner Offline with Error Logs.

[GT HAN]

Hi,

I've been using Windows Self-Hosted Runner.
However, since today, the following logs appear and the Runner is currently offline.

[2024-02-26 03:00:28,932] [d3a11005, L:/10.28.230.33:54824 - R:auth.atlassian.com/43.202.69.24:443] The connection observed an error
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297)
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434)
... 37 common frames omitted
Wrapped by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439)
at java.base/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306)
at java.base/sun.security.validator.Validator.validate(Validator.java:264)
at java.base/sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:313)
.
.
.
Wrapped by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439)
at java.base/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306)
at java.base/sun.security.validator.Validator.validate(Validator.java:264)
at java.base/sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:313)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustMan
.
.
.
Wrapped by: javax.net.ssl.SSLHandshakeException: General OpenSslEngine problem
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.handshakeException(ReferenceCountedOpenSslEngine.java:1945)
at io.netty.handler.ssl.ReferenceCountedOpenSslEngine.wrap(ReferenceCountedOpenSslEngine.java:852)

Please help me solve this issue.

Thanks.

[Theodora Boudale]

Hi @GT HAN and welcome to the community!

I see that you created a support ticket as well and you managed to resolve the issue. I just wanted to post here the resolution for any other users who may come across your post because they face the same error.

This error can occur when the runner is using a certificate issued by a certificate authority whose root and intermediate certificates are not present in your JDK.

The issue was resolved by importing the certificate as per the following knowledge base article:

• https://confluence.atlassian.com/kb/how-to-import-a-public-ssl-certificate-into-a-jvm-867025849.html

Kind regards,
Theodora