[Bug] The parameters of method ```CollectionUtils#sort``` should be comparable type

[codingkiddo]

Pre-check

• I am sure that all the content I provide is in English.

Search before asking

• I had searched in the issues and found no similar issues.

Apache Dubbo Component

Java SDK (apache/dubbo)

Dubbo Version

Dubbo - 3.3, JDK - 21, OS - MacOS(26.3.1 (a) (25D771280a))

Steps to reproduce this issue

Improve generic type safety of CollectionUtils.sort

What you expected to happen

Motivation

CollectionUtils.sort currently accepts any List<T> and internally calls Collections.sort using a raw cast / suppressed warnings.

This allows code like CollectionUtils.sort(List<NonComparableType>) to compile, but it may fail at runtime because natural ordering requires elements to implement Comparable.

Proposed change

Change the method signature from:

public static <T> List<T> sort(List<T> list)

to

public static <T extends Comparable<? super T>> List<T> sort(List<T> list)

and remove the raw cast

Collections.sort(list);

Anything else

This aligns the method with java.util.Collections.sort, improves compile-time type safety, and preserves the original return type List.

Do you have a (mini) reproduction demo?

• Yes, I have a minimal reproduction demo to help resolve this issue more effectively!

Are you willing to submit a pull request to fix on your own?

• Yes I am willing to submit a pull request on my own!

Code of Conduct

• I agree to follow this project's Code of Conduct