java.lang.AssertionError: [] expected null, but was:<jenkins.plugins.openstack.compute.JCloudsComputer@26efe57b>
	at org.junit.Assert.fail(Assert.java:89)
	at org.junit.Assert.failNotNull(Assert.java:756)
	at org.junit.Assert.assertNull(Assert.java:738)
	at jenkins.plugins.openstack.compute.JCloudsCleanupThreadTest.discardTemporarilyOfflineSlave(JCloudsCleanupThreadTest.java:72)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at jenkins.plugins.openstack.PluginTestRule$3.evaluate(PluginTestRule.java:621)
	at org.jvnet.hudson.test.JenkinsRule$1.evaluate(JenkinsRule.java:648)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.lang.Thread.run(Thread.java:840)

0.111 [id=185]	INFO	o.jvnet.hudson.test.JenkinsRule#createWebServer2: Running on http://localhost:34861/jenkins/
   0.222 [id=185]	INFO	jenkins.model.Jenkins#<init>: Starting version 2.504.1
   0.227 [id=198]	INFO	jenkins.InitReactorRunner$1#onAttained: Started initialization
   0.228 [id=204]	INFO	jenkins.InitReactorRunner$1#onAttained: Listed all plugins
   0.229 [id=201]	INFO	j.b.api.BouncyCastlePlugin#start: /home/jenkins/agent/workspace/ns_openstack-cloud-plugin_PR-450/plugin/target/tmp/j h13579084620227576926/plugins/bouncycastle-api/WEB-INF/optional-lib not found; for non RealJenkinsRule this is fine and can be ignored.
   0.374 [id=201]	INFO	jenkins.InitReactorRunner$1#onAttained: Prepared all plugins
   0.377 [id=197]	INFO	jenkins.InitReactorRunner$1#onAttained: Started all plugins
   0.377 [id=203]	INFO	jenkins.InitReactorRunner$1#onAttained: Augmented all extensions
   0.559 [id=202]	INFO	jenkins.InitReactorRunner$1#onAttained: System config loaded
   0.583 [id=198]	INFO	jenkins.InitReactorRunner$1#onAttained: System config adapted
   0.583 [id=204]	INFO	jenkins.InitReactorRunner$1#onAttained: Loaded all jobs
   0.584 [id=203]	INFO	jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated
   0.587 [id=199]	INFO	jenkins.InitReactorRunner$1#onAttained: Completed initialization
   0.601 [id=86]	INFO	j.p.o.c.JCloudsSlaveTemplate#provisionServer: Provisioning new openstack server template0-2 with options jenkins.plugins.openstack.compute.SlaveOptions@2abe8bcf[bootSource=<null>,hardwareId=<null>,networkId=<null>,userDataId=<null>,instanceCap=10,instancesMin=0,floatingIpPool=<null>,securityGroups=default,availabilityZone=<null>,startTimeout=600000,keyPairName=<null>,numExecutors=1,jvmOptions=<null>,fsRoot=/tmp/jenkins,launcherFactory=jenkins.plugins.openstack.compute.slaveopts.LauncherFactory$JNLP@1f,nodeProperties=<null>,retentionTime=30,configDrive=false]
   0.602 [id=86]	WARNING	j.p.o.c.JCloudsSlaveTemplate#provisionServer: No BootSource set for JCloudsSlaveTemplate with name='template0'.
   0.604 [id=86]	INFO	j.p.o.c.JCloudsSlaveTemplate#provisionServer: Provisioned: Mock for Object, hashCode: 190011818
   0.605 [id=86]	INFO	j.p.o.compute.JCloudsSlave#createComputer: Creating a new computer for template0-2
Autolaunching agent for slave: template0-2
template0-2 err: WARNING: The "-jnlpUrl" argument is deprecated. Use "-url" and "-name" instead, potentially also passing in "-webSocket", "-tunnel", and/or work directory options as needed.
   1.039 [id=191]	WARNING	hudson.slaves.SlaveComputer#doJenkinsAgentJnlp: Agent "template0-2" is connecting with the "-jnlpUrl" argument, which is deprecated. Use "-url" and "-name" instead, potentially also passing in "-webSocket", "-tunnel", and/or work directory options as needed.
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher createEngine
template0-2 err: INFO: Setting up agent: template0-2
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Engine startEngine
template0-2 err: INFO: Using Remoting version: 3301.v4363ddcca_4e7
template0-2 err: Aug 26, 2025 6:05:47 PM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir
template0-2 err: INFO: Using /tmp/jenkins/remoting as a remoting work directory
template0-2 err: Aug 26, 2025 6:05:47 PM org.jenkinsci.remoting.engine.WorkDirManager setupLogging
template0-2 err: INFO: Both error and output logs will be printed to /tmp/jenkins/remoting
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Locating server among [http://localhost:34861/jenkins/]
template0-2 err: Aug 26, 2025 6:05:47 PM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
template0-2 err: INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
   1.265 [id=229]	INFO	h.TcpSlaveAgentListener$ConnectionHandler#run: Connection #7 from /127.0.0.1:50076 failed: null
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Agent discovery successful
template0-2 err:   Agent address: localhost
template0-2 err:   Agent port:    35677
template0-2 err:   Identity:      97:02:49:55:db:38:85:13:9c:1f:bf:9c:8a:8f:f2:3e
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Handshaking
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Connecting to localhost:35677
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Server reports protocol JNLP4-connect-proxy not supported, skipping
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Trying protocol: JNLP4-connect
template0-2 err: Aug 26, 2025 6:05:47 PM org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader run
template0-2 err: INFO: Waiting for ProtocolStack to start.
   1.309 [id=230]	INFO	h.TcpSlaveAgentListener$ConnectionHandler#run: Accepted JNLP4-connect connection #8 from /127.0.0.1:50090
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Remote identity confirmed: 97:02:49:55:db:38:85:13:9c:1f:bf:9c:8a:8f:f2:3e
template0-2 err: Aug 26, 2025 6:05:47 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Connected
  11.418 [id=251]	SEVERE	j.p.o.c.JCloudsCleanupThread#terminatesNodesWithoutServers: JCloudsCleanupThread incorrectly detected orphaned computer for Mock for Object, hashCode: 190011818
  12.616 [id=185]	INFO	j.s.DefaultJnlpSlaveReceiver#channelClosed: Executing discardTemporarilyOfflineSlave(jenkins.plugins.openstack.compute.JCloudsCleanupThreadTest) for template0-2 terminated: java.nio.channels.ClosedChannelException
  12.619 [id=185]	INFO	hudson.lifecycle.Lifecycle#onStatusUpdate: Stopping Jenkins
template0-2 err: Aug 26, 2025 6:05:59 PM hudson.remoting.Launcher$CuiListener status
template0-2 err: INFO: Terminated
  12.627 [id=185]	INFO	hudson.lifecycle.Lifecycle#onStatusUpdate: Jenkins stopped
  12.682 [id=185]	INFO	o.j.h.t.TemporaryDirectoryAllocator#dispose: deleting /home/jenkins/agent/workspace/ns_openstack-cloud-plugin_PR-450/plugin/target/tmp/j h13579084620227576926

=== Starting discardTemporarilyOfflineSlave(jenkins.plugins.openstack.compute.JCloudsCleanupThreadTest)
$ /opt/jdk-17/bin/java -jar -DstartedBy=discardTemporarilyOfflineSlave(jenkins.plugins.openstack.compute.JCloudsCleanupThreadTest) /home/jenkins/agent/workspace/ns_openstack-cloud-plugin_PR-450@tmp/m2repo/org/jenkins-ci/main/remoting/3301.v4363ddcca_4e7/remoting-3301.v4363ddcca_4e7.jar -jnlpUrl http://localhost:34861/jenkins/computer/template0-2/slave-agent.jnlp