Unsupported major.minor version 52.0

Kubernetes plugin requires Java 8

On Wed, Jan 25, 2017 at 6:28 PM, J <[email protected]> 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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