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Failed to initialize
java.io.IOException: Failed to initialize at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:441) at hudson.PluginManager$2$1$1.run(PluginManager.java:384) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282) at jenkins.model.Jenkins$8.runTask(Jenkins.java:915) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)Caused by: java.lang.ClassCircularityError: org/jruby/RubyClass at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.jenkinsci.bytecode.ClassWriter.loadClass(ClassWriter.java:97) at org.jenkinsci.bytecode.ClassWriter.getCommonSuperClass(ClassWriter.java:64) at org.kohsuke.asm5.ClassWriter.getMergedType(ClassWriter.java:1654) at org.kohsuke.asm5.Frame.merge(Frame.java:1426) at org.kohsuke.asm5.Frame.merge(Frame.java:1374) at org.kohsuke.asm5.MethodWriter.visitMaxs(MethodWriter.java:1475) at org.kohsuke.asm5.tree.MethodNode.accept(MethodNode.java:833) at org.kohsuke.asm5.commons.JSRInlinerAdapter.visitEnd(JSRInlinerAdapter.java:187) at org.jenkinsci.bytecode.Transformer$1$1.visitEnd(Transformer.java:107) at org.kohsuke.asm5.MethodVisitor.visitEnd(MethodVisitor.java:877) at org.kohsuke.asm5.ClassReader.readMethod(ClassReader.java:1021) at org.kohsuke.asm5.ClassReader.accept(ClassReader.java:693) at org.kohsuke.asm5.ClassReader.accept(ClassReader.java:506) at org.jenkinsci.bytecode.Transformer.transform(Transformer.java:113) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:800) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1310) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1366) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1326) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1079) at java.lang.ClassLoader.loadClass(Unknown Source) at org.jenkinsci.jruby.RubyClassConverter.<init>(RubyClassConverter.java:12) at org.jenkinsci.jruby.JRubyXStream.register(JRubyXStream.java:25) at ruby.RubyRuntimePlugin.initRubyXStreams(RubyRuntimePlugin.java:44) at ruby.RubyRuntimePlugin.start(RubyRuntimePlugin.java:28) at hudson.ClassicPluginStrategy.startPlugin(ClassicPluginStrategy.java:449) at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:438) ... 9 more