Hello all
I am using Jenkins 2.452.2 which is a latest version and java 17.0.10. Everything was working fine but from last 2 week whenever I am trying to install any plugins or update the plugins I am getting 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:148)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:129)
at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297)
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434)
Caused: sun.security.validator.ValidatorException: PKIX path building failed
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.checkTrusted(X509TrustManagerImpl.java:231)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132)
at java.base/sun.security.ssl.CertificateMessage$T13CertificateConsumer.checkServerCerts(CertificateMessage.java:1335)
Caused: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:378)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:321)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:316)
at java.base/sun.security.ssl.CertificateMessage$T13CertificateConsumer.checkServerCerts(CertificateMessage.java:1351)
at java.base/sun.security.ssl.CertificateMessage$T13CertificateConsumer.onConsumeCertificate(CertificateMessage.java:1226)
at java.base/sun.security.ssl.CertificateMessage$T13CertificateConsumer.consume(CertificateMessage.java:1169)
at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458)
at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:201)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1510)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1425)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:455)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:426)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:589)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:187)
at java.base/sun.net.www.protocol.http.HttpURLConnection.followRedirect0(HttpURLConnection.java:2944)
at java.base/sun.net.www.protocol.http.HttpURLConnection.followRedirect(HttpURLConnection.java:2853)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1949)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1611)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224)
at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1323)
Caused: java.io.IOException: Failed to load https://updates.jenkins.io/download/plugins/javadoc/243.vb_b_503b_b_45537/javadoc.hpi to /var/lib/jenkins/plugins/javadoc.jpi.tmp
at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1334)
Caused: java.io.IOException: Failed to download from https://updates.jenkins.io/download/plugins/javadoc/243.vb_b_503b_b_45537/javadoc.hpi (redirected to: https://mirrors.in.sahilister.net/jenkins/plugins/javadoc/243.vb_b_503b_b_45537/javadoc.hpi )
at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1368)
at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1925)
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:2237)
at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1899)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:121)
at java.base/java.lang.Thread.run(Thread.java:840)’

please someone help me with any solution

The error sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target during Jenkins plugin updates can often be resolved by updating the Java Runtime Environment (JRE). This ensures that the latest security certificates are available.

Another potential issue could be an outdated URL for the Jenkins update center. You can try updating the URL in the hudson.model.UpdateCenter.xml file to http://updates.jenkins-ci.org/update-center.json .

If the issue is related to certificate errors, you can try installing the CA certificates using the following command:

sudo yum install -y ca-certificates

Alternatively, if you are downloading plugins manually, you can use the --no-check-certificate option to download insecurely.

Ensure that Java properties are correctly set. Java properties are case-sensitive, so make sure you are using -Djava.net.ssl.trustStore instead of -DJava.net.ssl.trustStore. Also, verify that $JENKINS_HOME is correctly set and is different from $JAVA_HOME.

If Jenkins is using a test site certificate, the issue might be related to the jenkins-runner.sh script not passing the httpsPrivateKey and httpsCertificate variables from the plist file to the command line used to launch Jenkins. You can add the following lines to jenkins-runner.sh to fix it:

check also Okami: Seek How Know Now it might give you more info