Dmitry Roo

var result  =  component.getChildComponents().stream()
                    .sorted(Comparator.comparingInt(TextComponent::getCountChildElements))
                    .collect(Collectors.toList());
component.getChildComponents().clear();
component.getChildComponents().addAll(result);

public void setChildComponents(List<TextComponent> childComponents) {
       this.childComponents = childComponents;
    }

class A {
 private String xPath;
...
 public String getXPath() {
  return this.xPath;
 }
}

class B { 
  private A a;
...
  void someVoid() { 
...
  String xPath = a.getXPath();
...
 }
}

class Example {
    public static void main(String[] args) {
        var licenses = List.of(
                new License(1, true),
                new License(2, false),
                new License(3, true)
                );
        
        var licenseMap = licenses.stream()
                .collect(Collectors.toMap(License::getId, License::isActive));
    }

    @Getter
    @RequiredArgsConstructor
    private static class License {
        private final Integer id;
        private final boolean isActive;
    }
}