After installing the Job Config History plugin on the CloudBees Operations Center, we see the following error trying to do something with the file bundle-update.properties. 

The contents of that file are:

bash-4.4$ cat bundle-update.properties
#Wed May 08 15:49:28 UTC 2024
restart.automatic=false
reload.skip=false
reload.automatic=false
reject.warnings=false
reload.always.onrestart=false

$ cat error.out
[Fatal Error] bundle-update.properties:1:1: Content is not allowed in prolog.
2024-05-10 15:26:48.524+0000 [id=95310] WARNING h.p.j.FileHistoryDao#saveItem: Error occurred while trying to extract changeReasonComment from config file: {0}
org.xml.sax.SAXParseException; systemId: file:/var/jenkins_home/bundle-update.properties; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
        at java.xml/com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:262)
        at java.xml/com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:342)
        at java.xml/javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:206)
        at hudson.plugins.jobConfigHistory.FileHistoryDao.removeChangeReasonComment(FileHistoryDao.java:371)
        at hudson.plugins.jobConfigHistory.FileHistoryDao.saveItem(FileHistoryDao.java:414)
        at hudson.plugins.jobConfigHistory.JobConfigHistorySaveableListener.onChange(JobConfigHistorySaveableListener.java:62)
        at hudson.model.listeners.SaveableListener.fireOnChange(SaveableListener.java:82)
        at com.cloudbees.jenkins.plugins.casc.config.BundleUpdateTimingConfiguration.notifyListeners(BundleUpdateTimingConfiguration.java:190)
        at com.cloudbees.jenkins.plugins.casc.config.BundleUpdateTimingConfiguration.save(BundleUpdateTimingConfiguration.java:175)
        at com.cloudbees.jenkins.plugins.casc.config.BundleUpdateTimingConfiguration.configure(BundleUpdateTimingConfiguration.java:196)
        at jenkins.model.Jenkins.configureDescriptor(Jenkins.java:4117)
        at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:4081)
        at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:732)
        at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:397)
        at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:409)
        at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:207)
        at org.kohsuke.stapler.SelectionInterceptedFunction$Adapter.invoke(SelectionInterceptedFunction.java:36)
        at org.kohsuke.stapler.verb.HttpVerbInterceptor.invoke(HttpVerbInterceptor.java:48)
        at org.kohsuke.stapler.SelectionInterceptedFunction.bindAndInvoke(SelectionInterceptedFunction.java:26)
        at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:140)
        at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:558)
        at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:59)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:770)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:900)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:836)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:900)
        at org.kohsuke.stapler.MetaClass$9.dispatch(MetaClass.java:475)
        at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:770)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:900)
        at org.kohsuke.stapler.Stapler.invoke(Stapler.java:698)
        at org.kohsuke.stapler.Stapler.service(Stapler.java:248)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764)
        at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1665)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:163)
        at com.cloudbees.jenkins.support.impl.cloudbees.UnrestrictedApiCallsMonitor$ApiMonitorFilter.doFilter(UnrestrictedApiCallsMonitor.java:124)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at com.cloudbees.analytics.gatherer.InboundLink$1.doFilter(InboundLink.java:113)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at org.jenkinsci.plugins.ssegateway.Endpoint$SSEListenChannelFilter.doFilter(Endpoint.java:248)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:89)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at com.cloudbees.jenkins.support.slowrequest.SlowRequestFilter.doFilter(SlowRequestFilter.java:37)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at com.cloudbees.opscenter.security.ClusterSessionFilter._doFilter(ClusterSessionFilter.java:67)
        at com.cloudbees.opscenter.security.ClusterSessionFilter.doFilter(ClusterSessionFilter.java:42)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at com.cloudbees.analytics.gatherer.SetupWizardStepsFilter.doFilter(SetupWizardStepsFilter.java:203)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at jenkins.util.HttpServletFilter$1.doFilter(HttpServletFilter.java:76)
        at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:160)
        at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:166)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at jenkins.ErrorAttributeFilter.doFilter(ErrorAttributeFilter.java:29)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:154)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:94)
        at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:54)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126)
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:110)
        at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:227)
        at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:221)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:97)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:117)
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
        at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:63)
        at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:99)
        at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:111)
        at de.theit.jenkins.crowd.CrowdServletFilter.doFilter(CrowdServletFilter.java:187)
        at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:172)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:53)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:86)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:38)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:569)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
        at org.eclipse.jetty.server.Server.handle(Server.java:563)
        at org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:287)
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
        at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
        at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)
        at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)
        at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)
        at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
        at java.base/java.lang.Thread.run(Thread.java:840)