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Activiti-explorer and Vaadin 6.7 has AbstractMethodError

Question asked by laszlo on Feb 15, 2012
I'm working with Explorer in OSGi and I use this patch. I updated to  Vaadin 6.7.5 and I got some exception.

Caused by: java.lang.AbstractMethodError: org.activiti.explorer.ui.util.ThemeImageColumnGenerator.generateCell(Lcom/vaadin/ui/Table;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
   at com.vaadin.ui.Table.getVisibleCellsNoCache(

I downgraded to Vaadin 6.6.2 and it works well. My assumption is it's a problem because the original Explorer was compiled with old Vaadin and the new is not entirely compatible with the binaries.

Please consider to upgrade the Vaadin so the binaries can be used with the lates Vaadin too.