Valuelist creation throws error

When you create a new Value List, an error pops up:

Hippo CMS Error report
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version : 2.26.00
time : 2014.06.27-3.12pm
user : admin
server : localhost
java : 1.7.0_25

error :
java.lang.NullPointerException: null
java.lang.NullPointerException
at org.hippoecm.frontend.plugins.standardworkflow.FolderWorkflowPlugin.select(FolderWorkflowPlugin.java:436)
at org.hippoecm.frontend.plugins.standardworkflow.FolderWorkflowPlugin$4.execute(FolderWorkflowPlugin.java:320)
at org.hippoecm.frontend.plugins.standardworkflow.FolderWorkflowPlugin$4.execute(FolderWorkflowPlugin.java:272)
at org.hippoecm.addon.workflow.StdWorkflow.execute(StdWorkflow.java:219)
at org.hippoecm.addon.workflow.StdWorkflow.execute(StdWorkflow.java:207)
at org.hippoecm.addon.workflow.StdWorkflow.invokeWorkflow(StdWorkflow.java:236)
at org.hippoecm.addon.workflow.AbstractWorkflowDialog.onOk(AbstractWorkflowDialog.java:54)
at org.hippoecm.frontend.dialog.AbstractDialog.handleSubmit(AbstractDialog.java:519)
at org.hippoecm.frontend.dialog.AbstractDialog$2.onSubmit(AbstractDialog.java:277)
at org.hippoecm.frontend.dialog.ButtonWrapper$1.onSubmit(ButtonWrapper.java:80)
at org.apache.wicket.ajax.markup.html.form.AjaxButton$1.onSubmit(AjaxButton.java:108)
at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior$1.onSubmit(AjaxFormSubmitBehavior.java:179)
at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1266)
at org.hippoecm.frontend.dialog.AbstractDialog.delegateSubmit(AbstractDialog.java:527)
at org.apache.wicket.markup.html.form.Form.process(Form.java:938)
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:770)
at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:156)
at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:123)
at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:626)
at sun.reflect.GeneratedMethodAccessor85.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:258)
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:241)
at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:250)
at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:236)
at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:862)
at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:261)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:218)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:289)
at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:259)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:201)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:282)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.hippoecm.frontend.plugins.login.ConcurrentLoginFilter.doFilter(ConcurrentLoginFilter.java:54)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)

session :

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To reproduce:

1. Create a 7.9 archetype project

2. Add the selection plugin CMS dependencies as indicated here http://selection.forge.onehippo.org/install.html

3. Rebuild, restart, create the valuelist

I think this has something to do with the document variant changes in 7.9. The valuelist still works as expected once you close the error window.

Maybe it is time to reconsider the design decision to make valuelists have no workflow (why?). If that can be done without breaking backwards compatability.