Hello Team,

We are currently facing issue while upgrading the plugins. We are getting below SSL handshake error.

There were errors checking the update sites: SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Current version of jenkins is __ 

<version>2.289.2</version>

Current version of java on system is

openjdk version "11.0.12" 2021-07-20 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.12+7-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.12+7-LTS, mixed mode, sharing)

Below is JDK configuration from jenkins config.xml

<jdks>
<jdk>
<name>java 8</name>
<home>/usr/lib/jvm/java-1.8.0-openjdk/</home>
<properties/>
</jdk>
</jdks>

Can someone help me to understand why this error is popping? We are using quite latest version jenkins and java but still it is failing to validate. 

Seeking help to resolve this issue.

Thanks and Regards,

Sagar Nachare.