2016-06-15 11:44:05.608+0100 [id=91]    WARNING j.util.ProgressiveRendering$1#run: failed to compute /jenkins/job/Delivery%20Pipeline%20Job/java.lang.UnsupportedOperationException: getAttribute
    at jenkins.util.ProgressiveRendering$2.invoke(ProgressiveRendering.java:190)
    at com.sun.proxy.$Proxy118.getAttribute(Unknown Source)
    at javax.servlet.ServletRequestWrapper.getAttribute(ServletRequestWrapper.java:120)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getUserDesiredVersionFromRequest(InheritanceProject.java:2172)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getUserDesiredVersion(InheritanceProject.java:2335)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getUserDesiredVersion(InheritanceProject.java:2328)
    at hudson.plugins.project_inheritance.projects.inheritance.InheritanceGovernor.retrieveFullyDerivedField(InheritanceGovernor.java:183)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getAllProperties(InheritanceProject.java:3226)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getProperty(InheritanceProject.java:3360)
    at hudson.plugins.project_inheritance.projects.InheritanceProject.getProperty(InheritanceProject.java:3352)
    at nectar.plugins.rbac.groups.JobProxyGroupContainer$GroupContainerLocatorImpl$1.findAttached(JobProxyGroupContainer.java:206)
    at nectar.plugins.rbac.groups.JobProxyGroupContainer$GroupContainerLocatorImpl$1.findAttached(JobProxyGroupContainer.java:203)
    at nectar.plugins.rbac.groups.GroupContainerLocator$PersistenceHelper.getOrCreateGroupContainer(GroupContainerLocator.java:184)
    at nectar.plugins.rbac.groups.JobProxyGroupContainer$GroupContainerLocatorImpl.get(JobProxyGroupContainer.java:232)
    at nectar.plugins.rbac.groups.GroupContainerLocator.locate(GroupContainerLocator.java:116)
    at nectar.plugins.rbac.strategy.RoleMatrixAuthorizationStrategyImpl.getACL(RoleMatrixAuthorizationStrategyImpl.java:146)
    at hudson.model.Job.getACL(Job.java:1482)
    at hudson.model.AbstractItem.hasPermission(AbstractItem.java:505)
    at com.cloudbees.hudson.plugins.folder.AbstractFolder.getItems(AbstractFolder.java:568)
    at hudson.model.Items.getAllItems(Items.java:357)
    at hudson.model.Items.getAllItems(Items.java:377)
    at hudson.model.Items.getAllItems(Items.java:377)
    at hudson.model.Items.getAllItems(Items.java:377)
    at hudson.model.Items.getAllItems(Items.java:353)
    at jenkins.model.Jenkins.getAllItems(Jenkins.java:1409)
    at com.cloudbees.hudson.plugins.modeling.impl.entity.ProgressiveInstances.compute(ProgressiveInstances.java:50)
    at jenkins.util.ProgressiveRendering$1.run(ProgressiveRendering.java:123)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)