code: @Test public void testBindingSshIgnored(){
    ShellProperties props=new ShellProperties();
    RelaxedDataBinder binder=new RelaxedDataBinder(props,"shell");
    binder.setConversionService(new DefaultConversionService());
    Map<String,String> map=new HashMap<String,String>();
    map.put("shell.ssh.enabled","false");
    map.put("shell.ssh.port","2222");
    map.put("shell.ssh.key_path","~/.ssh/test.pem");
    binder.bind(new MutablePropertyValues(map));
    assertFalse(binder.getBindingResult().hasErrors());
    Properties p=props.asCrshShellConfig();
    assertNull(p.get("crash.ssh.port"));
    assertNull(p.get("crash.ssh.keypath"));
  }
  