errael opened a new issue, #9376:
URL: https://github.com/apache/netbeans/issues/9376
### Apache NetBeans version
Apache NetBeans 30 latest release candidate
### What happened
Exception during refactor rename.
### Language / Project Type / NetBeans Component
Refactor rename in java source
### How to reproduce
1. Position the caret on `comp` in `for (Comp comp : some_list)`
2. Select `Menu > Refactor > Rename ...`
3. change comp to xxx (or anythgin)
4. <ENTER>
Observe exception
```
package com.raelity.play.refactor_switch;
import java.util.List;
import javax.swing.JLabel;
public class Refactor_switch {
enum CompDim { H1 }
private record Comp(JLabel label, CompDim dim){};
private List<Comp> some_list = null;
public static void main(String[] args) {
}
public void buildGui_dim()
{
for (Comp comp : some_list) { // REFACTOR RENAME comp GETS EXCEPTION
comp.label.setPreferredSize( switch (comp.dim) {
default -> null;
});
}
}
}
```
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Linux harmony 6.17.9-76061709-generic #202511241048~1764704751~22.04~b24b425
SMP PREEMPT_DYNAMIC Tue D x86_64 x86_64 x86_64 GNU/Linux
### JDK
openjdk 26 2026-03-17 OpenJDK Runtime Environment (build 26+35-2893) OpenJDK
64-Bit Server VM (build 26+35-2893, mixed mode, sharing)
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
Happens every time.
### Are you willing to submit a pull request?
No
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