Some errors occur after dnd active elements from visual part of editor to any view.

EXECUTE: Create default Seam project
EXECUTE: Open login.xhtml page
EXECUTE: Make dnd of login button to outline view
FAILURE: Event Handling Error
Log attached.
EXECUTE: Create Entity in seam project (NewEntity for example)
EXECUTE: Open created NewEntity.xhtml
EXECUTE: Make dnd of Done button near Selection Bar
FAILURE: One more exception occures.
Log attached.