This addon is incompatible with 8.2.0, because of this expection:
java.lang.NoSuchMethodError: com.vaadin.ui.Grid$Column.setDescriptionGenerator(Lcom/vaadin/ui/components/grid/DescriptionGenerator;)Lcom/vaadin/ui/Grid$Column;
at com.wcs.wcslib.vaadin.widget.multifileupload.ui.UploadQueueGrid.(UploadQueueGrid.java:39)
at com.wcs.wcslib.vaadin.widget.multifileupload.ui.UploadStatePanel.(UploadStatePanel.java:53)
at com.wcs.wcslib.vaadin.widget.multifileupload.ui.UploadStatePanel.(UploadStatePanel.java:56)
at com.wcs.wcslib.vaadin.widget.multifileupload.ui.MultiFileUpload.createStatePanel(MultiFileUpload.java:71)
at com.wcs.wcslib.vaadin.widget.multifileupload.ui.MultiFileUpload.(MultiFileUpload.java:36)
Will be a new release of this addon?