Started by [email protected] on request of 'mcmonkey' Building in workspace /var/lib/jenkins/jobs/DenizenCore/workspace > git rev-parse --is-inside-work-tree # timeout=10 Fetching changes from the remote Git repository > git config remote.origin.url git://github.com/DenizenScript/DenizenCore.git # timeout=10 Fetching upstream changes from git://github.com/DenizenScript/DenizenCore.git > git --version # timeout=10 > git fetch --tags --progress git://github.com/DenizenScript/DenizenCore.git +refs/heads/*:refs/remotes/origin/* > git rev-parse origin/master^{commit} # timeout=10 Checking out Revision d594acd4b520b9a8aa75e64ba9a5106878369519 (origin/master) > git config core.sparsecheckout # timeout=10 > git checkout -f d594acd4b520b9a8aa75e64ba9a5106878369519 Commit message: "fix flag identify" > git rev-list --no-walk 028f7d396fabaecb4af62ed60d6b7fd8b839cba9 # timeout=10 > git tag -a -f -m Jenkins Build #110 jenkins-DenizenCore-110 # timeout=10 Parsing POMs Established TCP socket on 35393 [workspace] $ /var/lib/jenkins/tools/hudson.model.JDK/JDK/bin/java -Djava.awt.headless=true -cp /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-agent-1.12-alpha-1.jar:/var/lib/jenkins/tools/hudson.tasks.Maven_MavenInstallation/Maven_3.0.3/boot/plexus-classworlds-2.4.jar org.jvnet.hudson.maven3.agent.Maven3Main /var/lib/jenkins/tools/hudson.tasks.Maven_MavenInstallation/Maven_3.0.3 /var/cache/jenkins/war/WEB-INF/lib/remoting-3.17.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-1.12-alpha-1.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-commons-1.12-alpha-1.jar 35393 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:386) at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:244) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:230) at org.jvnet.hudson.maven3.agent.Maven3Main.main(Maven3Main.java:138) at org.jvnet.hudson.maven3.agent.Maven3Main.main(Maven3Main.java:70) ERROR: ================================================================================ ERROR: Invalid project setup: Connection reset ERROR: [JENKINS-18403][JENKINS-28294] JDK 'JDK' not supported to run Maven projects. ERROR: Maven projects have to be launched with a Java version greater or equal to the minimum version required by the master. ERROR: Use the Maven JDK Toolchains (plugin) to build your maven project with an older JDK. ERROR: Retrying with slave Java and setting compile/test properties to point to /var/lib/jenkins/tools/hudson.model.JDK/JDK. ERROR: ================================================================================ Established TCP socket on 38737 [workspace] $ /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.161-0.b14.el7_4.x86_64/jre/bin/java -Djava.awt.headless=true -cp /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-agent-1.12-alpha-1.jar:/var/lib/jenkins/tools/hudson.tasks.Maven_MavenInstallation/Maven_3.0.3/boot/plexus-classworlds-2.4.jar org.jvnet.hudson.maven3.agent.Maven3Main /var/lib/jenkins/tools/hudson.tasks.Maven_MavenInstallation/Maven_3.0.3 /var/cache/jenkins/war/WEB-INF/lib/remoting-3.17.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-1.12-alpha-1.jar /var/lib/jenkins/plugins/maven-plugin/WEB-INF/lib/maven3-interceptor-commons-1.12-alpha-1.jar 38737 <===[JENKINS REMOTING CAPACITY]===>