RS: portfolio list of documents if documents directory doesn't exist

Fehlernummer: I147-J Vorherige Business Pfad: https://testing.frentix.com/test9/url/HomeSite/32079872/PortfolioV2/0/MyBinders/0/Binder/11/Entries/0
Business Pfad: https://testing.frentix.com/test9/url/HomeSite/32079872/PortfolioV2/0/MyBinders/0/Binder/11/Entries/0/Entry/23
Datum und Zeit: 28.04.2020 14:26 ---------------------------------------------
Neuen Eintrag in Mappe erstellt --> im Dialog den Titel ausgefällt und Speichern geklickt --> RS. ------------------------------------------ --- 
from user: 32079872 ---2020-04-28 14:26:24.381 [ajp-nio-8029-exec-4] 
https://testing.frentix.com/test9/auth/HomeSite/32079872/PortfolioV2/0/MyBinders/0/Binder/11/Entries/0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15
Throwable occurred, logging the full stacktrace: java.lang.NullPointerException
 at java.util.Objects.requireNonNull(Objects.java:203)
 at java.util.Arrays$ArrayList.(Arrays.java:3813)
 at java.util.Arrays.asList(Arrays.java:3800)
 at org.olat.modules.portfolio.ui.PageMetadataController.initAssignments(PageMetadataController.java:225)
 at org.olat.modules.portfolio.ui.PageMetadataController.(PageMetadataController.java:124)
 at org.olat.modules.portfolio.ui.PageRunController.loadMeta(PageRunController.java:343)
 at org.olat.modules.portfolio.ui.PageRunController.(PageRunController.java:184)
 at org.olat.modules.portfolio.ui.AbstractPageListController.doOpenPage(AbstractPageListController.java:925)
 at org.olat.modules.portfolio.ui.BinderPageListController.event(BinderPageListController.java:557)
 at org.olat.core.gui.control.DefaultController$1.run(DefaultController.java:250)
 at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
 at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:247)
 at org.olat.core.gui.control.DefaultController.fireEvent(DefaultController.java:194)
 at org.olat.modules.portfolio.ui.PageMetadataEditController.formOK(PageMetadataEditController.java:573)
 at org.olat.core.gui.components.form.flexible.impl.FormBasicController.event(FormBasicController.java:389)
 at org.olat.core.gui.control.DefaultController.dispatchEvent(DefaultController.java:206)
 at org.olat.core.gui.components.AbstractComponent$1.run(AbstractComponent.java:240)
 at org.olat.core.logging.activity.ThreadLocalUserActivityLoggerInstaller.runWithUserActivityLogger(ThreadLocalUserActivityLoggerInstaller.java:108)
 at org.olat.core.gui.components.AbstractComponent.fireEvent(AbstractComponent.java:238)
 at org.olat.core.gui.components.form.flexible.impl.FormWrapperContainer.fireValidation(FormWrapperContainer.java:124)
 at org.olat.core.gui.components.form.flexible.impl.Form.submit(Form.java:461)
 at org.olat.core.gui.components.form.flexible.impl.Form.submit(Form.java:448)
 at org.olat.core.gui.components.form.flexible.impl.elements.FormSubmit.dispatchFormRequest(FormSubmit.java:72)
 at org.olat.core.gui.components.form.flexible.impl.FormItemImpl.doDispatchFormRequest(FormItemImpl.java:561)
 at org.olat.core.gui.components.form.flexible.impl.Form.evalFormRequest(Form.java:316)
 at org.olat.core.gui.components.form.flexible.impl.FormWrapperContainer.doDispatchRequest(FormWrapperContainer.java:105)
 at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
 at org.olat.core.gui.components.Window.doDispatchToComponent(Window.java:1248)
 at org.olat.core.gui.components.Window.dispatchRequest(Window.java:428)
 at org.olat.core.gui.components.Window.doDispatchRequest(Window.java:309)
 at org.olat.core.gui.components.AbstractComponent.dispatchRequest(AbstractComponent.java:193)
 at org.olat.dispatcher.AuthenticatedDispatcher.processValidDispatchURI(AuthenticatedDispatcher.java:272)
 at org.olat.dispatcher.AuthenticatedDispatcher.execute(AuthenticatedDispatcher.java:192)
 at org.olat.core.servlets.OpenOLATServlet.executeUserRequest(OpenOLATServlet.java:269)
 at org.olat.core.servlets.OpenOLATServlet.doPost(OpenOLATServlet.java:216)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)