title: getNodeText() does not return text for object manager search tree
body: <p>I see the following search tree in SAP:</p>
  
  <p><img src="https://i.stack.imgur.com/R7fLH.png" alt="SAP object manager search tree"></p>
  
  <p>I'm trying to verify the contents of that tree, mainly I want to get the text that is displayed for the nodes. I'm using <a href="http://documentation.microfocus.com/help/index.jsp?topic=%2Fcom.borland.silktest.silk4net.doc%2Flangref%2FSAP%2FGetNodeTextMethodSapTree_ref.html" rel="nofollow noreferrer">getNodeText() [MicroFocus]</a> to get the text of the node, but it returns an empty string for all nodes.</p>
  
  <p>As an alternative, I tried <a href="http://documentation.microfocus.com/help/index.jsp?topic=%2Fcom.borland.silktest.silk4net.doc%2Flangref%2FSAP%2FGetItemTextMethodSapTree_ref.html" rel="nofollow noreferrer">getItemText() [MicroFocus]</a> with <code>"HierarchyHeader"</code> as the <code>itemName</code> parameter. Still no luck.</p>
  
  <p>So from Silk4J point of view, the tree looks like this, which makes it impossible to identify the nodes:</p>
  
  <p><img src="https://i.stack.imgur.com/G4l4s.png" alt="SAP object manager search tree from Silk4J"></p>
  
  <p>I even tried to identify nodes using the icon returned by <a href="http://documentation.microfocus.com/help/index.jsp?topic=%2Fcom.borland.silktest.silk4net.doc%2Flangref%2FSAP%2FGetAbapImageMethodSapTree_ref.html" rel="nofollow noreferrer">getNodeAbapImage() [MicroFocus]</a>, but this also returns an empty string.</p>
  
  <p>For now I don't have any chance to identify the nodes in the search tree. Is there a way to get the node text? A workaround is also acceptable.</p>
  
  <p>I am using Silk4J 15.5 Hotfix 5 (15.5.5.7099).</p>