Recent CentOS upgrade is causing errors under LTS 1.466.1

[Robert Middleswarth]

I upgraded CentOS on my master server last night and found that I couldn't update or manage any of my slaves started getting errors and there are additional fields inside the launcher section.  Is any one else see this?  I am seeing lots of errors then is one I get when I attempt to update my settings.  I see this error when attempting to update my Fedora, Ubuntu, and CentOS slaves so I assume this is an issue on the master.

Thanks
Robert

Error:

Status Code: 500

Exception: java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"labelString":"ubuntu","launcher":{"":"0","account":{"stapler-class":"hudson.os.windows.ManagedWindowsServiceAccount$LocalSystem"},"command":"","host":["XXX.XXX.XXX.XXX",""],"javaPath":"","jvmOptions":"","password":["passowrd",""],"port":"22222","prefixStartSlaveCmd":"","privatekey":"","stapler-class":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"],"suffixStartSlaveCmd":"","tunnel":"","userName":"","username":"jenkins","vmargs":["",""]},"mode":"NORMAL","name":"vm02.ubuntu.ovirt.info","nodeDescription":"Ubuntu 12.04","nodeProperties":{"hudson-slaves-EnvironmentVariablesNodeProperty":{"env":{"key":"PATH","value":"$PATH:/sbin:/bin:/usr/sbin:/usr/bin"}},"hudson-tools-ToolLocationNodeProperty":{"locations":[{"home":"/usr/lib/jvm/java-1.7.0-openjdk-amd64","key":"hudson.model.JDK$Descrip...@java-1.7.0-openjdk.x86_64"},{"home":"/usr/bin/git","key":"hudson.plugins.git.GitTool$Descrip...@1.7.1-2"}]},"stapler-class-bag":"true"},"numExecutors":"5","remoteFS":"/home/jenkins/slave","retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always"}}
Stacktrace:

javax.servlet.ServletException: java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"labelString":"ubuntu","launcher":{"":"0","account":{"stapler-class":"hudson.os.windows.ManagedWindowsServiceAccount$LocalSystem"},"command":"","host":["96.234.181.4",""],"javaPath":"","jvmOptions":"","password":["lb-rocks",""],"port":"22222","prefixStartSlaveCmd":"","privatekey":"","stapler-class":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"],"suffixStartSlaveCmd":"","tunnel":"","userName":"","username":"jenkins","vmargs":["",""]},"mode":"NORMAL","name":"vm02.ubuntu.ovirt.info","nodeDescription":"Ubuntu 12.04","nodeProperties":{"hudson-slaves-EnvironmentVariablesNodeProperty":{"env":{"key":"PATH","value":"$PATH:/sbi
 n:/bin:/u
sr/sbin:/usr/bin"}},"hudson-tools-ToolLocationNodeProperty":{"locations":[{"home":"/usr/lib/jvm/java-1.7.0-openjdk-amd64","key":"hudson.model.JDK$Descrip...@java-1.7.0-openjdk.x86_64"},{"home":"/usr/bin/git","key":"hudson.plugins.git.GitTool$Descrip...@1.7.1-2"}]},"stapler-class-bag":"true"},"numExecutors":"5","remoteFS":"/home/jenkins/slave","retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always"}}
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:616)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:659)
	at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:384)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:574)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:659)
	at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:203)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:574)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:659)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:488)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:162)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
	at winstone.ServletConfiguration.execute(ServletConfiguration.java:248)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:95)
	at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:66)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:98)
	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:98)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:206)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:179)
	at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:86)
	at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:84)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:98)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:87)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
	at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:166)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at jenkins.security.ApiTokenFilter.doFilter(ApiTokenFilter.java:63)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
	at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
	at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:50)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
	at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
	at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
	at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
	at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:215)
	at winstone.RequestHandlerThread.run(RequestHandlerThread.java:138)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.RuntimeException: Failed to instantiate class hudson.slaves.DumbSlave from {"":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"labelString":"ubuntu","launcher":{"":"0","account":{"stapler-class":"hudson.os.windows.ManagedWindowsServiceAccount$LocalSystem"},"command":"","host":["96.234.181.4",""],"javaPath":"","jvmOptions":"","password":["lb-rocks",""],"port":"22222","prefixStartSlaveCmd":"","privatekey":"","stapler-class":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"],"suffixStartSlaveCmd":"","tunnel":"","userName":"","username":"jenkins","vmargs":["",""]},"mode":"NORMAL","name":"vm02.ubuntu.ovirt.info","nodeDescription":"Ubuntu 12.04","nodeProperties":{"hudson-slaves-EnvironmentVariablesNodeProperty":{"env":{"key":"PATH","value":"$PATH:/sbin:/bin:/usr/sbin:/usr/bin"}},"
 hudson-to
ols-ToolLocationNodeProperty":{"locations":[{"home":"/usr/lib/jvm/java-1.7.0-openjdk-amd64","key":"hudson.model.JDK$Descrip...@java-1.7.0-openjdk.x86_64"},{"home":"/usr/bin/git","key":"hudson.plugins.git.GitTool$Descrip...@1.7.1-2"}]},"stapler-class-bag":"true"},"numExecutors":"5","remoteFS":"/home/jenkins/slave","retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always"}}
	at hudson.model.Descriptor.newInstance(Descriptor.java:575)
	at hudson.model.Node.reconfigure(Node.java:410)
	at hudson.model.Computer.doConfigSubmit(Computer.java:1075)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:288)
	at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:28)
	at org.kohsuke.stapler.Function$InterceptedFunction.invoke(Function.java:389)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:151)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:90)
	at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:111)
	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:574)
	... 68 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.slaves.DumbSlave from {"":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.RetentionStrategy$Always"],"labelString":"ubuntu","launcher":{"":"0","account":{"stapler-class":"hudson.os.windows.ManagedWindowsServiceAccount$LocalSystem"},"command":"","host":["96.234.181.4",""],"javaPath":"","jvmOptions":"","password":["lb-rocks",""],"port":"22222","prefixStartSlaveCmd":"","privatekey":"","stapler-class":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"],"suffixStartSlaveCmd":"","tunnel":"","userName":"","username":"jenkins","vmargs":["",""]},"mode":"NORMAL","name":"vm02.ubuntu.ovirt.info","nodeDescription":"Ubuntu 12.04","nodeProperties":{"hudson-slaves-EnvironmentVariablesNodeProperty":{"env":{"key":"PATH","value":"$PATH:/sbin:/bin:/usr/sbin:/usr/
 bin"}},"h
udson-tools-ToolLocationNodeProperty":{"locations":[{"home":"/usr/lib/jvm/java-1.7.0-openjdk-amd64","key":"hudson.model.JDK$Descrip...@java-1.7.0-openjdk.x86_64"},{"home":"/usr/bin/git","key":"hudson.plugins.git.GitTool$Descrip...@1.7.1-2"}]},"stapler-class-bag":"true"},"numExecutors":"5","remoteFS":"/home/jenkins/slave","retentionStrategy":{"stapler-class":"hudson.slaves.RetentionStrategy$Always"}}
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:633)
	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:377)
	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:373)
	at hudson.model.Descriptor.newInstance(Descriptor.java:566)
	... 82 more
Caused by: java.lang.IllegalArgumentException: Failed to convert the launcher parameter of the constructor public hudson.slaves.DumbSlave(java.lang.String,java.lang.String,java.lang.String,java.lang.String,hudson.model.Node$Mode,java.lang.String,hudson.slaves.ComputerLauncher,hudson.slaves.RetentionStrategy,java.util.List) throws java.io.IOException,hudson.model.Descriptor$FormException
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:627)
	... 85 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.slaves.ComputerLauncher from {"":"0","account":{"stapler-class":"hudson.os.windows.ManagedWindowsServiceAccount$LocalSystem"},"command":"","host":["96.234.181.4",""],"javaPath":"","jvmOptions":"","password":["lb-rocks",""],"port":"22222","prefixStartSlaveCmd":"","privatekey":"","stapler-class":["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"],"suffixStartSlaveCmd":"","tunnel":"","userName":"","username":"jenkins","vmargs":["",""]}
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:633)
	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:377)
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:625)
	... 85 more
Caused by: java.lang.IllegalArgumentException: Class ["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"] is specified in JSON, but no such class found in classLoader hudson.PluginManager$UberClassLoader
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:606)
	... 87 more
Caused by: java.lang.ClassNotFoundException: ["hudson.plugins.sshslaves.SSHLauncher","hudson.slaves.JNLPLauncher","hudson.slaves.CommandLauncher","hudson.os.windows.ManagedWindowsServiceLauncher","hudson.plugins.libvirt.VirtualMachineLauncher"]
	at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:779)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:601)
	... 87 more

-- 
Thanks
Robert Middleswarth
@rmiddle (twitter/Freenode IRC)
@RobertM (OFTC IRC)