kubernetes-cd-plugin: io.kubernetes.client.openapi.models.V1Deployment Class not found exception

This seems to have started after a kubernetes 1.16 -> 1.17 cluster upgrade. We don’t have a lot of jobs using this cd plugin yet, so we didn’t notice right away.

19:14:55  ERROR: ERROR: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Deployment; exception=Class not found: io.kubernetes.client.openapi.models.V1Deployment
19:14:55   in 'reader', line 1, column 1:
19:14:55      apiVersion: apps/v1

The class file exists, and there doesn’t seem to be another plugin which has an older version of the kubernetes client jar.

$ find plugins -name \*.jar -print | while read i; do jar -tf "$i" | grep -q io.kubernetes.client.openapi.models && echo "$i" ; done
plugins/kubernetes-cd/WEB-INF/lib/client-java-api-7.0.0.jar

$ jar -tf plugins/kubernetes-cd/WEB-INF/lib/client-java-api-7.0.0.jar | grep io.kubernetes.client.openapi.models.V1Deployment
io/kubernetes/client/openapi/models/V1Deployment.class
io/kubernetes/client/openapi/models/V1DeploymentBuilder.class
io/kubernetes/client/openapi/models/V1DeploymentCondition.class
...

Full Error:

19:14:51  Starting Kubernetes deployment
19:14:55  Loading configuration: /var/lib/jenkins/workspace/internal-api-docs/docs/internal_api/deployment.yaml
19:14:55  ERROR: ERROR: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Deployment; exception=Class not found: io.kubernetes.client.openapi.models.V1Deployment
19:14:55   in 'reader', line 1, column 1:
19:14:55      apiVersion: apps/v1
19:14:55      ^
19:14:55  
19:14:55  hudson.remoting.ProxyException: Can't construct a java object for tag:yaml.org,2002:io.kubernetes.client.openapi.models.V1Deployment; exception=Class not found: io.kubernetes.client.openapi.models.V1Deployment
19:14:55   in 'reader', line 1, column 1:
19:14:55      apiVersion: apps/v1
19:14:55      ^
19:14:55  
19:14:55  	at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:336)
19:14:55  	at org.yaml.snakeyaml.constructor.BaseConstructor.constructObjectNoCheck(BaseConstructor.java:230)
19:14:55  	at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:219)
19:14:55  	at io.kubernetes.client.util.Yaml$CustomConstructor.constructObject(Yaml.java:337)
19:14:55  	at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:173)
19:14:55  	at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:157)
19:14:55  	at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:472)
19:14:55  	at org.yaml.snakeyaml.Yaml.loadAs(Yaml.java:438)
19:14:55  	at io.kubernetes.client.util.Yaml.loadAs(Yaml.java:224)
19:14:55  	at io.kubernetes.client.util.Yaml.modelMapper(Yaml.java:494)
19:14:55  	at io.kubernetes.client.util.Yaml.loadAll(Yaml.java:272)
19:14:55  	at com.microsoft.jenkins.kubernetes.wrapper.KubernetesClientWrapper.apply(KubernetesClientWrapper.java:236)
19:14:55  	at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.doCall(DeploymentCommand.java:172)
19:14:55  	at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.call(DeploymentCommand.java:124)
19:14:55  	at com.microsoft.jenkins.kubernetes.command.DeploymentCommand$DeploymentTask.call(DeploymentCommand.java:106)
19:14:55  	at hudson.FilePath.act(FilePath.java:1162)
19:14:55  	at com.microsoft.jenkins.kubernetes.command.DeploymentCommand.execute(DeploymentCommand.java:68)
19:14:55  	at com.microsoft.jenkins.kubernetes.command.DeploymentCommand.execute(DeploymentCommand.java:45)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.CommandService.runCommand(CommandService.java:88)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.CommandService.execute(CommandService.java:96)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.CommandService.executeCommands(CommandService.java:75)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.BaseCommandContext.executeCommands(BaseCommandContext.java:77)
19:14:55  	at com.microsoft.jenkins.kubernetes.KubernetesDeploy.perform(KubernetesDeploy.java:42)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.SimpleBuildStepExecution.run(SimpleBuildStepExecution.java:54)
19:14:55  	at com.microsoft.jenkins.azurecommons.command.SimpleBuildStepExecution.run(SimpleBuildStepExecution.java:35)
19:14:55  	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
19:14:55  	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
19:14:55  	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
19:14:55  	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
19:14:55  	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
19:14:55  	at java.lang.Thread.run(Thread.java:748)
19:14:55  Caused by: hudson.remoting.ProxyException: org.yaml.snakeyaml.error.YAMLException: Class not found: io.kubernetes.client.openapi.models.V1Deployment
19:14:55  	at org.yaml.snakeyaml.constructor.Constructor.getClassForNode(Constructor.java:664)
19:14:55  	at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.getConstructor(Constructor.java:322)
19:14:55  	at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:331)
19:14:55  	... 30 more