jenkins 启动报错hudson.util.HudsonFailedToLoad error in Jenkins

at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)atorg.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: 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:497)
at hudson.init.TaskMethodFinder.invoke(TaskMethodFinder.java:105)
… 8 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at com.thoughtworks.xstream.core.util.OrderRetainingMap.entrySet(OrderRetainingMap.java:77)
at java.util.HashMap.putMapEntries(HashMap.java:511)
at java.util.HashMap.putAll(HashMap.java:784)
at com.thoughtworks.xstream.core.util.OrderRetainingMap.(OrderRetainingMap.java:36)
at com.thoughtworks.xstream.converters.reflection.FieldDictionary.buildMap(FieldDictionary.java:135)
at com.thoughtworks.xstream.converters.reflection.FieldDictionary.fieldsFor(FieldDictionary.java:76)
at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:127)
at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:149)
at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:108)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:898)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:887)
at com.thoughtworks.xstream.XStream.toXML(XStream.java:860)
at hudson.XmlFile.write(XmlFile.java:178)
at hudson.model.Descriptor.save(Descriptor.java:758)
at hudson.plugins.git.GitTool.onLoaded(GitTool.java:108)
… 13 more
解决办法
stopped jenkins service and deleted that file and folder from

Jenkins_HOME/plugin
cloudbees-folder.jpi
cloudbees-folder [directory]
and then restart jenkins service.

jenkins一直卡着 显示正在启动,请稍后…
解决办法：
修改/var/lib/jenkins/updates/default.json中的
“connectionCheckUrl”:“http://www.google.com/” 改为 “connectionCheckUrl”:“http://www.baidu.com/”