Build failed in Jenkins: HttpComponents » HttpComponents Core 5.0.x #1

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See <https://ci-builds.apache.org/job/HttpComponents/job/HttpComponents%20Core%205.0.x/1/display/redirect>

Changes:


------------------------------------------
Started by user Oleg Kalnichevski
Running as SYSTEM
[EnvInject] - Loading node environment variables.
Building remotely on h49-shared (ubuntu) in workspace <https://ci-builds.apache.org/job/HttpComponents/job/HttpComponents%20Core%205.0.x/ws/>
No credentials specified
Cloning the remote Git repository
Cloning repository https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git
 > git init <https://ci-builds.apache.org/job/HttpComponents/job/HttpComponents%20Core%205.0.x/ws/> # timeout=10
Fetching upstream changes from https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git
 > git --version # timeout=10
 > git fetch --tags --progress -- https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git config remote.origin.url https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git # timeout=10
 > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git config remote.origin.url https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git # timeout=10
Fetching upstream changes from https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git
 > git fetch --tags --progress -- https://git-wip-us.apache.org/repos/asf/httpcomponents-core.git +refs/heads/*:refs/remotes/origin/* # timeout=10
 > git rev-parse refs/remotes/origin/master^{commit} # timeout=10
 > git rev-parse refs/remotes/origin/origin/master^{commit} # timeout=10
Checking out Revision 964775edb9cbe4095964f038b2aa088ac6393624 (refs/remotes/origin/master)
 > git config core.sparsecheckout # timeout=10
 > git checkout -f 964775edb9cbe4095964f038b2aa088ac6393624 # timeout=10
Commit message: "Fix integer overflow in IOWorkers selector (#203)"
First time build. Skipping changelog.
Parsing POMs
Discovered a new module org.apache.httpcomponents.core5:httpcore5-parent Apache HttpComponents Core Parent
Discovered a new module org.apache.httpcomponents.core5:httpcore5 Apache HttpComponents Core HTTP/1.1
Discovered a new module org.apache.httpcomponents.core5:httpcore5-h2 Apache HttpComponents Core HTTP/2
Discovered a new module org.apache.httpcomponents.core5:httpcore5-reactive Apache HttpComponents Core Reactive Extensions
Discovered a new module org.apache.httpcomponents.core5:httpcore5-testing Apache HttpComponents Core Integration Tests
Modules changed, recalculating dependency graph
Established TCP socket on 44571
maven35-agent.jar already up to date
maven35-interceptor.jar already up to date
maven3-interceptor-commons.jar already up to date
[HttpComponents Core 5.0.x] $ /home/jenkins/tools/java/latest1.7/bin/java -cp /home/jenkins/h49-shared/712657a4/maven35-agent.jar:/home/jenkins/tools/maven/latest3/boot/plexus-classworlds-2.6.0.jar:/home/jenkins/tools/maven/latest3/conf/logging jenkins.maven3.agent.Maven35Main /home/jenkins/tools/maven/latest3/ /home/jenkins/h49-shared/slave.jar /home/jenkins/h49-shared/712657a4/maven35-interceptor.jar /home/jenkins/h49-shared/712657a4/maven3-interceptor-commons.jar 44571
Exception in thread "main" java.lang.UnsupportedClassVersionError: jenkins/maven3/agent/Maven35Main : 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$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
ERROR: Failed to launch Maven. Exit code = 1

Jenkins build is back to normal : HttpComponents » HttpComponents Core 5.0.x #2

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See <https://ci-builds.apache.org/job/HttpComponents/job/HttpComponents%20Core%205.0.x/2/display/redirect>