Which class define wt.workflow.WorkItem info page?

Hi!

I am try to find class that define wt.workflow.WorkItem info page, but I've no success result. In codebase/netmarkets/jsp/wokItem/info.jsp I can find the string that call MVC component:

<jsp:include page="${mvc:getComponentURL('wt.workflow.work.WorkItem.infoPage')}" />

But I can't to find this component.

Please help.