Tree x = r.getChild("x");
Tree y = r.getChild("y");
assertFalse(y.hasChild("x"));
assertEquals("", x.getParent().getName());
root.move("/x", "/y/x");
assertTrue(y.hasChild("x"));
// assertEquals("y", x.getParent().getName()); // passed on JR2, fails on Oak
assertEquals("", x.getParent().getName()); // fails on JR2, passes on Oak
}