This template snippet evaluates properly in OGNL 2.6:

<showAll jwcid="@ShowAll"
count="ognl:components.doxList.model.listSource.total" title=""
pageName="MyDocuments" >
  <div class="shadeIconIndent">
    <br/>
    <myDocs jwcid="doxList@MyDocumentsList"
allowItemsPerPageSelection="false"/>
  </div>
</showAll>

The count expression "ognl:components.doxList.model.listSource.total" is the problem in 2.7. This error appears in the stack trace:

Unable to parse OGNL expression
'components.doxList.model.listSource.total': Error compiling expression on object $BuilderAccount_106@3c1[BuilderAccount] with expression node components.doxList.model.listSource.total getter body: { return ($w) (((java.util.List)((collective.listcontainer.model.BaseListContainerMode
l)((collective.mb.ui.components.MyDocumentsList)(($BuilderAccount_106)$2
).getComponents().get("doxList")).getModel()).getListSource()).get(total
));} setter body: null

getListSource().get(total) should be getListSource().getTotal(). The concrete implementation of listSource both extends ArrayList and implements the ListSource interface, which has a getTotal() method that returns an int (the intended method). Presumably since it also extends ArrayList, getListSource() is being cast to java.util.List, at which point the get() method is being called.

I think OGNL 2.6's interpretation of getListSource().getTotal() makes more sense here than calling the get() method on java.util.List.