session.save();
File ssh1File = new File(System.getProperty("java.io.tmpdir"), "repo.ssh1");
InputStream isSSH1 = new FileInputStream(ssh1File);
ValueSsh1Comparator ssh1Comparator = new ValueSsh1Comparator(session.getTransientNodesManager(), isSSH1);
((NodeImpl)root.getNode("testNode")).getData().accept(ssh1Comparator);
};