https://help.eclipse.org/latest/nftopic/org.eclipse.platform.doc.isv/reference/api/org/eclipse/ui/internal/class-use/WorkbenchHandlerServiceHandler.html
Uses of Class org.eclipse.ui.internal.WorkbenchHandlerServiceHandler (Eclipse Platform API...
use: package: org.eclipse.ui.internal, class: WorkbenchHandlerServiceHandler
eclipse uiusesclassinternalplatform