code: public Map<String, CmsJspResourceWrapper> getReadResource() {
  
          if (m_resources == null) {
              // create lazy map only on demand
              m_resources = CmsCollectionsGenericWrapper.createLazyMap(new CmsResourceLoaderTransformer());
          }
          return m_resources;
      }
docs: Returns a map that lazily reads resources from the OpenCms VFS.<p>
  
  Usage example on a JSP with the EL:<pre>
  Root path of the "/index.html" resource: ${cms:vfs(pageContext).readResource['/index.html'].rootPath}
  </pre>
  
  Usage example on a JSP with the <code>&lt;cms:contentaccess&gt;</code> tag:<pre>
  &lt;cms:contentload ... &gt;
  &lt;cms:contentaccess var="content" /&gt;
  Root path of the "/index.html" resource: ${content.vfs.readResource['/index.html'].rootPath}
  &lt;/cms:contentload&gt;</pre>
  
  @return a map that lazily reads resources from the OpenCms VFS
  
  @see #getResource() for a short form of this method