java.lang.Error: Unresolved compilation problem:
The type javax.servlet.http.Cookie cannot be resolved. It is indirectly referenced from required .class files
at org.apache.isis.viewer.wicket.ui.components.widgets.themepicker.ThemeChooser.<init>(ThemeChooser.java:96)
at org.apache.isis.viewer.wicket.ui.pages.PageAbstract.addThemePicker(PageAbstract.java:211)
at org.apache.isis.viewer.wicket.ui.pages.PageAbstract.<init>(PageAbstract.java:180)
at org.apache.isis.viewer.wicket.ui.pages.error.ErrorPage.<init>(ErrorPage.java:40)
at org.apache.isis.viewer.wicket.viewer.integration.wicket.WebRequestCycleForIsis.errorPageFor(WebRequestCycleForIsis.java:177)
at org.apache.isis.viewer.wicket.viewer.integration.wicket.WebRequestCycleForIsis.errorPageProviderFor(WebRequestCycleForIsis.java:147)
at org.apache.isis.viewer.wicket.viewer.integration.wicket.WebRequestCycleForIsis.onException(WebRequestCycleForIsis.java:138)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection$4.notify(RequestCycleListenerCollection.java:126)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection$4.notify(RequestCycleListenerCollection.java:122)
at org.apache.wicket.util.listener.ListenerCollection.notify(ListenerCollection.java:80)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection.onException(RequestCycleListenerCollection.java:121)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection$4.notify(RequestCycleListenerCollection.java:126)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection$4.notify(RequestCycleListenerCollection.java:122)
at org.apache.wicket.util.listener.ListenerCollection.notify(ListenerCollection.java:80)
at org.apache.wicket.request.cycle.RequestCycleListenerCollection.onException(RequestCycleListenerCollection.java:121)
at org.apache.wicket.request.cycle.RequestCycle.handleException(RequestCycle.java:347)