Established TCP socket on 34417 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:791) 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.Maven33Main.main(Maven33Main.java:133) at jenkins.maven3.agent.Maven33Main.main(Maven33Main.java:64) Established TCP socket on 40177 <===[JENKINS REMOTING CAPACITY]===>channel started Executing Maven: -B -f /var/lib/jenkins/jobs/guilib/workspace/pom.xml -Dmaven.repo.local=/var/lib/jenkins/maven-repositories/1 deploy -Panon-cc-dev [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building guilib 00.00.230-SNAPSHOT [INFO] ------------------------------------------------------------------------ [WARNING] The POM for anon:anonlib:jar:00.20.044-SNAPSHOT is missing, no dependency information available [WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenArtifactArchiver$2; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/ [WARNING] Attempt to (de-)serialize anonymous class hudson.maven.reporters.MavenFingerprinter$1; see: https://jenkins.io/redirect/serialization-of-anonymous-classes/ [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.428 s [INFO] Finished at: 2018-04-12T10:19:32+02:00 [INFO] Final Memory: 11M/150M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project guilib: Could not resolve dependencies for project anon:guilib:jar:00.00.230-SNAPSHOT: Failure to find anon:anonlib:jar:00.20.044-SNAPSHOT in http://anon.inf.tu-dresden.de/artifactory/repo was cached in the local repository, resolution will not be reattempted until the update interval of anon.inf.tu-dresden.de has elapsed or updates are forced -> [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