private TreeElement addInternal(TreeElement child, ASTNode anchor, boolean before) throws IncorrectOperationException { final PomModel model = PomManager.getModel(getProject()); if (anchor != null && child.getElementType() == XmlElementType.XML_TEXT) { XmlText psi = null; if (anchor.getPsi() instanceof XmlText) { psi = (XmlText) anchor.getPsi(); } else { final ASTNode other = before ? anchor.getTreePrev() : anchor.getTreeNext(); if (other != null && other.getPsi() instanceof XmlText) { before = !before; psi = (XmlText) other.getPsi(); } } if (psi != null) { if (before) { psi.insertText(((XmlText) child.getPsi()).getValue(), 0); } else { psi.insertText(((XmlText) child.getPsi()).getValue(), psi.getValue().length()); } return (TreeElement) psi.getNode(); } } LOG.assertTrue(child.getPsi() instanceof XmlAttribute || child.getPsi() instanceof XmlTagChild); final InsertTransaction transaction; if (child.getElementType() == XmlElementType.XML_ATTRIBUTE) { transaction = new InsertAttributeTransaction(child, anchor, before, model); } else if (anchor == null) { transaction = getBodyInsertTransaction(child); } else { transaction = new GenericInsertTransaction(child, anchor, before); } model.runTransaction(transaction); return transaction.getFirstInserted(); }