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Bug
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Resolution: Not A Defect
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Major
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None
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Operating system: CentOS release 6.10 x86_64
JRE running Jenkins: OpenJDK 1.8.0_181-b13
Jenkins version: 2.144 (updated from 2.142), installed via yum from repository
Gradle Plugin: 1.29
After updating Jenkins from 2.142 to 2.144 via yum, Jenkins does not successfully start up. On accessing the web UI the following exception is displayed:
java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.ComparableTimSort.mergeHi(ComparableTimSort.java:866) at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:483) at java.util.ComparableTimSort.mergeForceCollapse(ComparableTimSort.java:422) at java.util.ComparableTimSort.sort(ComparableTimSort.java:222) at java.util.Arrays.sort(Arrays.java:1312) at java.util.Arrays.sort(Arrays.java:1506) at java.util.ArrayList.sort(ArrayList.java:1462) at java.util.Collections.sort(Collections.java:141) at hudson.ExtensionList.sort(ExtensionList.java:400) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:320) at hudson.ExtensionList.iterator(ExtensionList.java:172) at jenkins.model.Jenkins.getDescriptorByType(Jenkins.java:1522) at hudson.plugins.copyartifact.BuildSelectorParameter.initAliases(BuildSelectorParameter.java:158) Caused: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:104) Caused: java.lang.Error at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:110) at hudson.init.TaskMethodFinder$TaskImpl.run(TaskMethodFinder.java:175) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:296) at jenkins.model.Jenkins$5.runTask(Jenkins.java:1066) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:214) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused: org.jvnet.hudson.reactor.ReactorException at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:282) at jenkins.InitReactorRunner.run(InitReactorRunner.java:48) at jenkins.model.Jenkins.executeReactor(Jenkins.java:1100) at jenkins.model.Jenkins.<init>(Jenkins.java:904) at hudson.model.Hudson.<init>(Hudson.java:85) at hudson.model.Hudson.<init>(Hudson.java:81) at hudson.WebAppMain$3.run(WebAppMain.java:233) Caused: hudson.util.HudsonFailedToLoad at hudson.WebAppMain$3.run(WebAppMain.java:250) Page generated: Oct 4, 2018 12:34:51 PM CESTJenkins ver. 2.144
In the jenkins.log log file there are many exceptions. I will attach text files with examples. Some of the exceptions seem to point to the Gradle Plugin but I may be wrong about that. I can't easily uninstall the Gradle Plugin to test, because we depend on two plugins which have the Gradle Plugin as a dependency.
For now a Jenkins downgrade to 2.142 solves the issue.
