context1.rebind("myinteger", i);
String s = "";
context2.bind("mystring", s);
Context context3 = (Context) context2.lookup("");
context3.rename("java:comp/env/jdbc/myds", "jdbc/myds");
context3.unbind("myobject");
assertTrue("Correct environment", context3.getEnvironment() != context2.getEnvironment());
context3.addToEnvironment("key2", "value2");
assertTrue("key2 added", "value2".equals(context3.getEnvironment().get("key2")));