[Bug][Pull Up Refactoring] Pull up refactoring for Multiple Anonymous Classes produces confusing warning message

[RETester66]

Steps to reproduce

The input program is following:

public class A {
    public class BaseTargetClass {}

    public class OriginalClass {
        public int memberVariable = 40;

        public void memberMethod() {
            new BaseTargetClass() {
                void methodToBePulledUp() {
                    System.out.println("First anonymous class: ");
                }
            };
            new BaseTargetClass() {
                void methodToBePulledUp() {
                    System.out.println("Second anonymous class: ");
                }
            };
        }
    }
}

Left click the first or the second methodToBePulledUp(), then right click -> Refactor -> Pull Up, a confusing warning message is shown:

Environment

OS Version

Windows 10, 64-bit Operating System, x64-based processor

Eclipse Version

Eclipse IDE for Enterprise Java and Web Developers (includes Incubating components)
Version: 2024-09 (4.33.0)
Build id: 20240905-0614

JDK Version

java version "22.0.1" 2024-04-16
Java(TM) SE Runtime Environment (build 22.0.1+8-16)
Java HotSpot(TM) 64-Bit Server VM (build 22.0.1+8-16, mixed mode, sharing)