Refactoring extraction methods leads to naming conflicts

[provide a description of the issue]

Environment

Operating System: Windows11
JDK version: 17
Visual Studio Code version: 1.88
Java extension version: 1.29

Steps to Reproduce:

1. select "extracted();'
2. click “Refacator-Extract to method”
3. new method name " extractedMethod() "

class ExtractMethodTest {
public void originalMethod() {};
public void methodA() {
// Extracted method
extracted();
}
private void extracted() {
extractedMethod();
}
private void extractedMethod() {
// TODO Auto-generated method stub
}
public void methodB() {
extracted();
}
}

refactoring result:

Reason: When extracting the method, there was no detection of naming conflicts between the new method name and the context

Expected behavior: Check for naming conflicts before and after refactoring, and provide warning prompts

Reproduce the Java “Refactor-Extract to method” flow with the supplied class on the listed Windows 11, JDK 17, and VS Code 1.88 setup, using the Java extension entry point. Trace how the requested extractedMethod name is checked against the surrounding class, then verify that a conflict is detected and a warning is shown before or after refactoring.