Build failed in Jenkins: spring-extensions-v5-nightly #1346

[Shibboleth Jenkins]

See <https://build.shibboleth.net/jenkins/job/spring-extensions-v5-nightly/1346/display/redirect>

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Started by upstream project "java-support-v7-nightly" build number 1348
originally caused by:
 Started by upstream project "java-parent-project-v7-nightly" build number 1344
 originally caused by:
  Started by user Scott Cantor
Building on master in workspace <https://build.shibboleth.net/jenkins/job/spring-extensions-v5-nightly/ws/>
 > git rev-parse --is-inside-work-tree # timeout=10
Fetching changes from the remote Git repository
 > git config remote.origin.url git://git.shibboleth.net/spring-extensions # timeout=10
Fetching upstream changes from git://git.shibboleth.net/spring-extensions
 > git --version # timeout=10
 > git fetch --tags --progress git://git.shibboleth.net/spring-extensions +refs/heads/*:refs/remotes/origin/*
 > git rev-parse refs/remotes/origin/maint-5^{commit} # timeout=10
 > git rev-parse refs/remotes/origin/origin/maint-5^{commit} # timeout=10
Checking out Revision c127e0f5f01785869c4237b33fbbb4a5595de120 (refs/remotes/origin/maint-5)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f c127e0f5f01785869c4237b33fbbb4a5595de120
Commit message: "Bump java-support dependency."
 > git rev-list --no-walk c127e0f5f01785869c4237b33fbbb4a5595de120 # timeout=10
[workspace] $ /opt/maven/bin/mvn -Dmaven.repo.local=<https://build.shibboleth.net/jenkins/job/spring-extensions-v5-nightly/ws/.repository> clean -Prelease,central-disabled -U deploy
[INFO] Scanning for projects...
[INFO] 
[INFO] ----------------< net.shibboleth.ext:spring-extensions >----------------
[INFO] Building Spring Framework Extension 5.4.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from shib-snapshot: https://build.shibboleth.net/nexus/content/repositories/snapshots/net/shibboleth/utilities/java-support/7.4.2-SNAPSHOT/maven-metadata.xml
Downloading from shib-thirdparty-snapshot: https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots/net/shibboleth/utilities/java-support/7.4.2-SNAPSHOT/maven-metadata.xml
[WARNING] Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-snapshot (https://build.shibboleth.net/nexus/content/repositories/snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[WARNING] Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-thirdparty-snapshot (https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[WARNING] Failure to transfer net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from https://build.shibboleth.net/nexus/content/repositories/snapshots was cached in the local repository, resolution will not be reattempted until the update interval of shib-snapshot has elapsed or updates are forced. Original error: Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-snapshot (https://build.shibboleth.net/nexus/content/repositories/snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[WARNING] Failure to transfer net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots was cached in the local repository, resolution will not be reattempted until the update interval of shib-thirdparty-snapshot has elapsed or updates are forced. Original error: Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-thirdparty-snapshot (https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Downloading from shib-snapshot: https://build.shibboleth.net/nexus/content/repositories/snapshots/net/shibboleth/utilities/java-support/7.4.2-SNAPSHOT/java-support-7.4.2-SNAPSHOT.pom
Downloading from shib-thirdparty-snapshot: https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots/net/shibboleth/utilities/java-support/7.4.2-SNAPSHOT/java-support-7.4.2-SNAPSHOT.pom
[WARNING] Failure to transfer net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from https://build.shibboleth.net/nexus/content/repositories/snapshots was cached in the local repository, resolution will not be reattempted until the update interval of shib-snapshot has elapsed or updates are forced. Original error: Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-snapshot (https://build.shibboleth.net/nexus/content/repositories/snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[WARNING] Failure to transfer net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots was cached in the local repository, resolution will not be reattempted until the update interval of shib-thirdparty-snapshot has elapsed or updates are forced. Original error: Could not transfer metadata net.shibboleth.utilities:java-support:7.4.2-SNAPSHOT/maven-metadata.xml from/to shib-thirdparty-snapshot (https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.594 s
[INFO] Finished at: 2018-12-27T10:54:09-05:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project spring-extensions: Could not resolve dependencies for project net.shibboleth.ext:spring-extensions:jar:5.4.1-SNAPSHOT: Failed to collect dependencies at net.shibboleth.utilities:java-support:jar:7.4.2-SNAPSHOT: Failed to read artifact descriptor for net.shibboleth.utilities:java-support:jar:7.4.2-SNAPSHOT: Could not transfer artifact net.shibboleth.utilities:java-support:pom:7.4.2-SNAPSHOT from/to shib-snapshot (https://build.shibboleth.net/nexus/content/repositories/snapshots): sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
Build step 'Invoke top-level Maven targets' marked build as failure
Publishing Javadoc
TestNG Reports Processing: START
Looking for TestNG results report in workspace using pattern: **/target/surefire-reports/testng-results.xml
testng-results.xml was last modified before this build started. Ignoring it.
Saving reports...
Found matching files but did not find any TestNG results.