Build failed in Jenkins: spring-extensions-v5 » Spring Framework Extension #300

[Shibboleth Jenkins]

See <https://build.shibboleth.net/jenkins/job/spring-extensions-v5/net.shibboleth.ext$spring-extensions/300/display/redirect?page=changes>

Changes:

[Brent Putman] Lock parent version for new minor release

[Brent Putman] Update files to be tagged for release

[Brent Putman] Bump version after release

[Brent Putman] Fix typo in post-tag version bump

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Established TCP socket on 37733
Exception in thread "main" java.lang.UnsupportedClassVersionError: hudson/remoting/Launcher : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:133)
	at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:64)
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Executing Maven:  -B -f <https://build.shibboleth.net/jenkins/job/spring-extensions-v5/net.shibboleth.ext$spring-extensions/ws/pom.xml> clean -Prelease install
[INFO] Scanning for projects...
[INFO] 
[INFO] ----------------< net.shibboleth.ext:spring-extensions >----------------
[INFO] Building Spring Framework Extension 5.4.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] Downloading from shib-snapshot: https://build.shibboleth.net/nexus/content/repositories/snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/maven-metadata.xml
[INFO] Downloading from shib-thirdparty-snapshot: https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/maven-metadata.xml
[INFO] Downloading from shib-snapshot: https://build.shibboleth.net/nexus/content/repositories/snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/java-support-7.4.1-SNAPSHOT.pom
[INFO] Downloading from shib-thirdparty-snapshot: https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/java-support-7.4.1-SNAPSHOT.pom
[WARNING] The POM for net.shibboleth.utilities:java-support:jar:7.4.1-SNAPSHOT is missing, no dependency information available
[INFO] Downloading from shib-snapshot: https://build.shibboleth.net/nexus/content/repositories/snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/java-support-7.4.1-SNAPSHOT.jar
[INFO] Downloading from shib-thirdparty-snapshot: https://build.shibboleth.net/nexus/content/repositories/thirdparty-snapshots/net/shibboleth/utilities/java-support/7.4.1-SNAPSHOT/java-support-7.4.1-SNAPSHOT.jar
[WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenArtifactArchiver$2; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/
[JENKINS] Archiving disabled
[WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenFingerprinter$1; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/