Problems with anonymous file downloads

I have this problem:
Once Jenkins has been running for a few days, it becomes impossible to download files anonymously. It always works when logged in and it works for a bit after a server-restart. But after a few days, not sure how long exactly, if I use e.g. wget from a CLI, I get the following error:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1"/>
<title>Error 403 No such user: anonymous</title>
</head>
<body><h2>HTTP ERROR 403 No such user: anonymous</h2>
<table>
<tr><th>URI:</th><td>/static-files/eDD1sRH9u0OGGhlYXKYYhnXJ5P6HKlbFlsyIPhTipYUxNzM0ODE1NTgzNTM4Ojk6YW5vbnltb3VzOmpvYi9GaXJtd2FyZS9qb2IvUmFkaW9BcHAvam9iL3BpcGUtYnVpbGQvbGFzdFN1Y2Nlc3NmdWxCdWlsZC9hcnRpZmFjdA==/pkgDir/QIDMR_FC_xmlDev.1809.ttfp</td></tr>
<tr><th>STATUS:</th><td>403</td></tr>
<tr><th>MESSAGE:</th><td>No such user: anonymous</td></tr>
<tr><th>SERVLET:</th><td>Stapler</td></tr>
</table>
<hr/><a href="https://jetty.org/">Powered by Jetty:// 12.0.13</a><hr/>

</body>
</html>

Any idea on what is causing it and how to fix it?

Jenkins setup:

  • Our Jenkins security is set up to use LDAP for user authentication and the “logged in users can do anything” authorization strategy.
  • “Allow anonymous users read access” is checked.
  • We do use a resource-root URL (jenkins-artefacts.<domain>) different from the main URL (jenkins.<domain>).

Jenkins: 2.479.2
OS: Linux - 6.8.0-49-generic
Java: 21.0.5 - Ubuntu (OpenJDK 64-Bit Server VM)

PrioritySorter:5.2.0
ace-editor:1.1
analysis-model-api:12.9.1
ansicolor:1.0.5
ant:511.v0a_a_1a_334f41b_
antisamy-markup-formatter:162.v0e6ec0fcfcf6
anything-goes-formatter:19.v3e2b_1b_3e0ee5
apache-httpcomponents-client-4-api:4.5.14-208.v438351942757
apache-httpcomponents-client-5-api:5.4-124.v31e2987e48f4
asm-api:9.7.1-97.v4cc844130d97
authentication-tokens:1.119.v50285141b_7e1
badge:2.5
bootstrap4-api:4.6.0-6
bootstrap5-api:5.3.3-1
bouncycastle-api:2.30.1.78.1-248.ve27176eb_46cb_
branch-api:2.1200.v4b_a_3da_2eb_db_4
build-blocker-plugin:166.vc82fc20b_a_ed6
build-failure-analyzer:2.5.3
build-monitor-plugin:1.14-947.vfec2cf655fe2
build-name-setter:2.4.3
build-pipeline-plugin:2.0.2
build-timeout:1.33
build-token-root:151.va_e52fe3215fc
build-user-vars-plugin:182.v378b_9f14b_487
build-with-parameters:76.v9382db_f78962
built-on-column:1.4
caffeine-api:3.1.8-133.v17b_1ff2e0599
checks-api:2.2.1
cloudbees-folder:6.973.vc9b_85a_61e4fc
cobertura:1.17
code-coverage-api:4.99.0
command-launcher:116.vd85919c54a_d6
commons-compress-api:1.26.1-2
commons-lang3-api:3.17.0-84.vb_b_938040b_078
commons-text-api:1.12.0-129.v99a_50df237f7
conditional-buildstep:1.4.3
config-file-provider:980.v88956a_a_5d6a_d
copy-to-agent:1.4.4
copyartifact:757.v05365583a_455
coverage:1.16.1
credentials:1393.v6017143c1763
credentials-binding:687.v619cb_15e923f
dashboard-view:2.521.v339b_a_f4d8da_8
data-tables-api:2.1.8-1
delete-log-plugin:1.0
description-setter:258.vcd25251271a_a_
display-url-api:2.209.v582ed814ff2f
docker-commons:445.v6b_646c962a_94
docker-workflow:580.vc0c340686b_54
downstream-buildview:69.v16da_b_2c36f6c
durable-task:581.v299a_5609d767
echarts-api:5.5.1-4
eddsa-api:0.3.0-4.v84c6f0f4969e
email-ext:1861.vdb_d991590994
emoji-symbols-api:13.v723a_b_8e234d1
envinject:2.919.v009a_a_1067cd0
envinject-api:1.199.v3ce31253ed13
extended-choice-parameter:382.v5697b_32134e8
external-monitor-job:215.v2e88e894db_f8
ez-templates:1.3.5
flexible-publish:0.16.1
font-awesome-api:6.6.0-2
forensics-api:2.6.0
git:5.6.0
git-client:6.1.0
git-server:126.v0d945d8d2b_39
gitlab-plugin:1.9.6
groovy-label-assignment:1.2.0
groovy-postbuild:267.va_df06de9fa_fa_
gson-api:2.11.0-85.v1f4e87273c33
handlebars:3.0.8
http_request:1.19
instance-identity:201.vd2a_b_5a_468a_a_6
ionicons-api:74.v93d5eb_813d5f
jackson2-api:2.17.0-379.v02de8ec9f64c
jakarta-activation-api:2.1.3-1
jakarta-mail-api:2.1.3-1
javadoc:280.v050b_5c849f69
javax-activation-api:1.2.0-7
javax-mail-api:1.6.2-10
jaxb:2.3.9-1
jdk-tool:80.v8a_dee33ed6f0
jenkins-multijob-plugin:659.v6633374ec624
jersey2-api:2.44-151.v6df377fff741
jnr-posix-api:3.1.19-2
job-dsl:1.90
jobConfigHistory:1283.veb_dfb_00b_5ec0
joda-time-api:2.13.0-93.v9934da_29b_a_e9
jquery:1.12.4-3
jquery-detached:1.2.1
jquery3-api:3.7.1-2
jsch:0.2.16-86.v42e010d9484b_
json-api:20240303-101.v7a_8666713110
json-path-api:2.9.0-118.v7f23ed82a_8b_8
junit:1311.v39e1716e4eb_e
keep-agent-disconnected:1.0
label-linked-jobs:6.0.1
ldap:770.vb_455e934581a_
lockable-resources:1327.ved786b_a_197e0
log-parser:2.3.7
logstash:2.5.0218.v0a_ff8fefc12b_
mail-watcher-plugin:1.19
mailer:489.vd4b_25144138f
managed-scripts:1.5.6
mapdb-api:1.0.9-40.v58107308b_7a_7
mashup-portlets-plugin:1.1.2
matrix-auth:3.2.3
matrix-project:840.v812f627cb_578
matrix-reloaded:1.1.3
maven-plugin:3.24
mercurial:1260.vdfb_723cdcc81
metrics:4.2.21-458.vcf496cb_839e4
mina-sshd-api-common:2.14.0-136.v4d2b_0853615e
mina-sshd-api-core:2.14.0-136.v4d2b_0853615e
momentjs:1.1.1
monitoring:2.4.0
msbuild:1.35
naginator:1.481.vcb_b_384a_3de89
nodelabelparameter:1.13.0
pam-auth:1.11
parameterized-trigger:806.vf6fff3e28c3e
pipeline-build-step:540.vb_e8849e1a_b_d8
pipeline-graph-analysis:216.vfd8b_ece330ca_
pipeline-groovy-lib:744.v5b_556ee7c253
pipeline-input-step:495.ve9c153f6067b_
pipeline-milestone-step:119.vdfdc43fc3b_9a_
pipeline-model-api:2.2218.v56d0cda_37c72
pipeline-model-definition:2.2218.v56d0cda_37c72
pipeline-model-extensions:2.2218.v56d0cda_37c72
pipeline-rest-api:2.34
pipeline-stage-step:312.v8cd10304c27a_
pipeline-stage-tags-metadata:2.2218.v56d0cda_37c72
pipeline-stage-view:2.34
pipeline-utility-steps:2.18.0
plain-credentials:183.va_de8f1dd5a_2b_
plot:2.2.0
plugin-util-api:5.1.0
popper-api:1.16.1-3
popper2-api:2.11.6-5
postbuildscript:3.4.1-695.vf6b_0b_8053979
powershell:2.2
preSCMbuildstep:71.v1f2990a_37e27
prism-api:1.29.0-18
project-description-setter:1.2
purge-build-queue-plugin:88.v23b_97b_f2c7a_d
pyenv-pipeline:2.1.2
rebuild:332.va_1ee476d8f6d
resource-disposer:0.25
robot:5.0.0
run-condition:1.7
saml:4.501.v4313a_01e3a_18
scm-api:698.v8e3b_c788f0a_6
script-security:1369.v9b_98a_4e95b_2d
shiningpanda:0.24
show-build-parameters:1.0
snakeyaml-api:2.3-123.v13484c65210a_
ssh-agent:376.v8933585c69d3
ssh-credentials:349.vb_8b_6b_9709f5b_
ssh-slaves:2.973.v0fa_8c0dea_f9f
sshd:3.330.vc866a_8389b_58
structs:338.v848422169819
subversion:1281.vc8837f91a_07a_
throttle-concurrents:2.16
timestamper:1.28
token-macro:400.v35420b_922dcb_
trilead-api:2.147.vb_73cc728a_32e
variant:60.v7290fc0eb_b_cd
versioncolumn:243.vda_c20eea_a_8a_f
versionnumber:1.11
view-job-filters:392.v2c0a_4dd46909
warnings-ng:11.12.0
windows-slaves:1.8.1
workflow-aggregator:600.vb_57cdd26fdd7
workflow-api:1336.vee415d95c521
workflow-basic-steps:1058.vcb_fc1e3a_21a_9
workflow-cps:4000.v5198556e9cea_
workflow-cps-global-lib:612.v55f2f80781ef
workflow-durable-task-step:1398.vf6c9e89e5988
workflow-job:1472.ve4d5eca_143c4
workflow-multibranch:795.ve0cb_1f45ca_9a_
workflow-scm-step:427.v4ca_6512e7df1
workflow-step-api:678.v3ee58b_469476
workflow-support:936.v9fa_77211ca_e1
ws-cleanup:0.48
xshell:325.v3fda_132b_2641
REST API
Jenkins 2.479.2

Create a log recorder with FINE logging for jenkins.security.ResourceDomainRootAction for additional information in the Jenkins system log.

Thanks this resulted in the following log:

Jan 24, 2025 9:37:59 PM FINE jenkins.security.ResourceDomainRootAction
Determined DBS URL: job/Tools/job/pca_cal_deb/lastSuccessfulBuild/artifact from restOfUrl: job/Tools/job/pca_cal_deb/lastSuccessfulBuild/artifact/bld/taitcal-version.deb and restOfPath: /bld/taitcal-version.deb
Jan 24, 2025 9:37:59 PM FINE jenkins.security.ResourceDomainRootAction
Performing a request as authentication: anonymous and restOfUrl: job/Tools/job/pca_cal_deb/lastSuccessfulBuild/artifact and restOfPath: /bld/taitcal-version.deb
Jan 24, 2025 9:37:59 PM FINE jenkins.security.ResourceDomainRootAction
Failed to impersonate anonymous
org.springframework.security.core.userdetails.UsernameNotFoundException: User anonymous not found in directory.
	at PluginClassLoader for ldap//org.springframework.security.ldap.search.FilterBasedLdapUserSearch.searchForUser(FilterBasedLdapUserSearch.java:107)
	at PluginClassLoader for ldap//hudson.security.LDAPSecurityRealm$LDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1298)
	at PluginClassLoader for ldap//hudson.security.LDAPSecurityRealm$DelegateLDAPUserDetailsService.loadUserByUsername(LDAPSecurityRealm.java:1239)
	at jenkins.security.ImpersonatingUserDetailsService2.loadUserByUsername(ImpersonatingUserDetailsService2.java:29)
	at hudson.model.User.getUserDetailsForImpersonation2(User.java:431)
	at hudson.model.User.impersonate2(User.java:399)
	at jenkins.security.ResourceDomainRootAction$InternalResourceRequest.doDynamic(ResourceDomainRootAction.java:227)
	at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:733)
	at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:484)
	at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:497)
	at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:218)
	at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:140)
	at org.kohsuke.stapler.MetaClass$11.dispatch(MetaClass.java:622)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
	at org.kohsuke.stapler.MetaClass$10.dispatch(MetaClass.java:590)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
	at org.kohsuke.stapler.MetaClass$10.dispatch(MetaClass.java:590)
	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:800)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:938)
	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:721)
	at org.kohsuke.stapler.Stapler.service(Stapler.java:253)
	at Jenkins Main ClassLoader//jakarta.servlet.http.HttpServlet.service(HttpServlet.java:587)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHolder.handle(ServletHolder.java:765)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1668)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:204)
	at PluginClassLoader for monitoring//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:237)
	at PluginClassLoader for monitoring//net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:213)
	at PluginClassLoader for monitoring//net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:87)
	at PluginClassLoader for monitoring//org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:120)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
	at io.jenkins.servlet.FilterChainWrapper$2.doFilter(FilterChainWrapper.java:53)
	at PluginClassLoader for metrics//jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
	at io.jenkins.servlet.FilterWrapper$1.doFilter(FilterWrapper.java:42)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
	at jenkins.util.HttpServletFilter$1.doFilter(HttpServletFilter.java:77)
	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:201)
	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:207)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at jenkins.ErrorAttributeFilter.doFilter(ErrorAttributeFilter.java:29)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:160)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:94)
	at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
	at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:54)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.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.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:145)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:101)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.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.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
	at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:98)
	at hudson.security.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.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.ChainedServletFilter2$1.doFilter(ChainedServletFilter2.java:99)
	at hudson.security.ChainedServletFilter2.doFilter(ChainedServletFilter2.java:111)
	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:173)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at org.kohsuke.stapler.UncaughtExceptionFilter.doFilter(UncaughtExceptionFilter.java:26)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:86)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:31)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:38)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.FilterHolder.doFilter(FilterHolder.java:202)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1638)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler.doHandle(ServletHandler.java:526)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.handle(ScopedHandler.java:127)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.security.SecurityHandler.handle(SecurityHandler.java:574)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HandlerWrapper.handle(HandlerWrapper.java:124)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextHandle(ScopedHandler.java:197)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.SessionHandler.doHandle(SessionHandler.java:612)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextHandle(ScopedHandler.java:195)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.doHandle(ContextHandler.java:1037)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:164)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.servlet.ServletHandler.doScope(ServletHandler.java:483)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:162)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.SessionHandler.doScope(SessionHandler.java:589)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.nextScope(ScopedHandler.java:162)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.doScope(ContextHandler.java:958)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ScopedHandler.handle(ScopedHandler.java:125)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler.handle(ContextHandler.java:1696)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1564)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel.dispatch(HttpChannel.java:723)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.HttpChannel.handle(HttpChannel.java:511)
	at Jenkins Main ClassLoader//org.eclipse.jetty.ee9.nested.ContextHandler$CoreContextHandler$CoreToNestedHandler.handle(ContextHandler.java:2873)
	at Jenkins Main ClassLoader//org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1060)
	at Jenkins Main ClassLoader//org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:611)
	at Jenkins Main ClassLoader//org.eclipse.jetty.server.Server.handle(Server.java:182)
	at Jenkins Main ClassLoader//org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662)
	at Jenkins Main ClassLoader//org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:418)
	at Jenkins Main ClassLoader//org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322)
	at Jenkins Main ClassLoader//org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99)
	at Jenkins Main ClassLoader//org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:480)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:443)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209)
	at Jenkins Main ClassLoader//org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164)
	at java.base/java.lang.Thread.run(Thread.java:1583)

Ok, the logger resulted in an error, but I cannot post that here for some reason. If I put it in the post, the post is immediately removed (or not even added or whatever) and if I try to attach it as a file, it tells me I’m not allowed to.

Never mind. I just got an email that my posts have apparently been flagged as spam and hidden until a staff member can review them. So hopefully they’ll appear shortly.

Thanks. I filed https://issues.jenkins.io/browse/JENKINS-75201 for this.

Could you try the PR build of [JENKINS-75201] Fix anonymous check by daniel-beck · Pull Request #10221 · jenkinsci/jenkins · GitHub (once it’s built) whether this fixes the issue for you? Haven’t gotten around to debugging this, but this looks like a possible reason this fails.

Thanks for looking into this. How do I use the PR build? We are normally using the debian packages.

Also, I don’t know how to reproduce this on-demand. It only happens after some time. From your fix, can you infer what is triggering it so I can test faster?

Ok, I now found the download links on the “incrementals pusher”. So I can install a test-server and replace the war etc that comes with the std package.

However, without a way to trigger the problem on-demand, I’m not sure how to test whether it is fixed.