I deployed the v8 sample jar and war, in the sample-widget-maps.xml file, I modify it as
<bean name="CoTTextWidget" class="vignette.customer.widget.SampleWidgetMap">
<!-- widgetClass property:
name: must be "widgetClass"
value: the fully qualified class name of the custom 8.0 widget
-->
<property name="widgetClass" value="vignette.customer.widget.SampleWidget"/>
</bean>
CoTTextWidget is my customized widget, almost as same as VCMTextWidget, but when I try to create instance on content workspace, it displays "This field cannot be displayed. Contact your system administrator." I added a log "System.out.println("SampleWidgetMap has been triggered.");" in SmapleWidgetMap, but never can find it. Any additional step I should do?