The 'k-state-' classes are supposed to be updated when UI for JSP is used. However, the classes are still present in some of the ItemsTag.java files, thus the classes are added to the rendering.
Both classes 'k-state-active' and 'k-active' are applied (screencast).
Other classes that appear in the ITemTag.java files are k-state-disabled and k-state-selected. Components that should be revised are - - ContextMenu,
The state classes should be upgraded when using the UI for JSP wrappers according to the new rendering.
https://docs.telerik.com/kendo-ui/styles-and-layout/components-rendering-overview#state-classes