Yep that fixed it. Thanks Carlos. It would be good if you mentioned that on 
the plugin page or the the github README.

For anyone else that stumbles here, I had to completely remove jdk-7 before 
this started working.

On Wednesday, 25 January 2017 09:51:35 UTC-8, Carlos Sanchez wrote:
>
> Unsupported major.minor version 52.0
>
> Kubernetes plugin requires Java 8
>
> On Wed, Jan 25, 2017 at 6:28 PM, J <[email protected] <javascript:>> 
> wrote:
>
>> I did a new install and I see a bunch of warnings all failing to load 
>>> modules and all citing the same major minor version error (highlighted 
>>> below):
>>>
>>
>>
>> INFO: Jenkins is fully up and running 
>>
>> Jan 25, 2017 5:20:12 PM hudson.model.UpdateSite$Plugin 
>> getNeededDependencies 
>>
>> WARNING: Could not find dependency cloudbees-registration of 
>> mansion-cloud 
>>
>> Jan 25, 2017 5:20:12 PM hudson.model.UpdateSite$Plugin 
>> getNeededDependencies 
>>
>> WARNING: Could not find dependency cloudbees-registration of 
>> mansion-cloud 
>>
>> Jan 25, 2017 5:20:14 PM hudson.model.UpdateSite$Plugin 
>> getNeededDependencies 
>>
>> WARNING: Could not find dependency cloudbees-registration of 
>> mansion-cloud 
>>
>> Jan 25, 2017 5:20:14 PM hudson.model.UpdateSite$Plugin 
>> getNeededDependencies 
>>
>> WARNING: Could not find dependency cloudbees-registration of 
>> mansion-cloud 
>>
>> Jan 25, 2017 5:20:22 PM hudson.model.UpdateCenter$DownloadJob run 
>>
>> INFO: Starting the installation of Kubernetes plugin on behalf of admin 
>>
>> Jan 25, 2017 5:20:23 PM 
>> hudson.model.UpdateCenter$UpdateCenterConfiguration download 
>>
>> INFO: Downloading Kubernetes plugin 
>>
>> Jan 25, 2017 5:20:23 PM hudson.PluginManager dynamicLoad 
>>
>> INFO: Attempting to dynamic load /var/lib/jenkins/plugins/kubernetes.jpi 
>>
>> Jan 25, 2017 5:20:24 PM hudson.ExtensionFinder$Sezpoz _find 
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.KubectlBuildWrapper$DescriptorImpl 
>>
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.OpenShiftTokenCredentialImpl$DescriptorImpl
>>  
>>
>>
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.KubernetesCloud$DescriptorImpl 
>>
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.pipeline.PodTemplateStep$DescriptorImpl
>>  
>>
>>
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.PodTemplate$DescriptorImpl 
>>
>> WARNING: Failed to load 
>> org.csanchez.jenkins.plugins.kubernetes.volumes.NfsVolume$DescriptorImpl 
>>
>> java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: 
>> org/csanchez/jenkins/plugins/kubernetes/volumes/NfsVolume$DescriptorImpl : 
>> Unsupported major.minor version 52.0 
>>>
>>>  
>>>
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>>
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>
>

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