Build failed in Jenkins: java-idp-testbed » idp-testbed #1684

[Shibboleth Jenkins]

See <https://build.shibboleth.net/jenkins/job/java-idp-testbed/net.shibboleth.idp$idp-testbed/1684/display/redirect>

------------------------------------------
Established TCP socket on 37379
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$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:133)
	at jenkins.maven3.agent.Maven35Main.main(Maven35Main.java:64)
Established TCP socket on 45316
<===[JENKINS REMOTING CAPACITY]===>   channel started
Executing Maven:  -B -f <https://build.shibboleth.net/jenkins/job/java-idp-testbed/net.shibboleth.idp$idp-testbed/ws/pom.xml> clean -Prelease install
[INFO] Scanning for projects...
[INFO] 
[INFO] -------------------< net.shibboleth.idp:idp-testbed >-------------------
[INFO] Building idp-testbed 0.8.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.0.0:clean (default-clean) @ idp-testbed ---
[INFO] Deleting <https://build.shibboleth.net/jenkins/job/java-idp-testbed/net.shibboleth.idp$idp-testbed/ws/target>
[INFO] 
[INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ idp-testbed ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 9 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.7.0:compile (default-compile) @ idp-testbed ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 11 source files to <https://build.shibboleth.net/jenkins/job/java-idp-testbed/net.shibboleth.idp$idp-testbed/ws/target/classes>
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] javac: invalid target release: 1.8
Usage: javac <options> <source files>
use -help for a list of possible options

[INFO] 1 error
[INFO] -------------------------------------------------------------
[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/