int embDocsNumber = embDocs.size();
// the document "Object 1/
OdfDocument embDoc = embDocs.get("Object 1/");
String pathOfSecondInnerDoc = "Object in Object1/";
embDoc.insertDocument(OdfTextDocument.newTextDocument(), pathOfSecondInnerDoc);
OdfFileEntry fileEntry = embDoc.getPackage().getFileEntry(embDoc.getDocumentPath() + pathOfSecondInnerDoc);
Assert.assertNotNull(fileEntry);
// get "Object 1/content.xml"
OdfContentDom contentDom = embDoc.getContentDom();
XPath xpath = contentDom.getXPath();