usersuis opened a new issue, #7428:
URL: https://github.com/apache/netbeans/issues/7428
### Apache NetBeans version
Apache NetBeans 21
### What happened
Using "introduce method" on "instanceof" caused compile error in output
program.
### Language / Project Type / NetBeans Component
Java Maven Project Java Application
### How to reproduce
Input program:
```
class X {
private void foo(Object o) {
if (o instanceof X x) { // select the entire o instanceof X x
System.out.println(x.toString());
x.foo(null);
}
}
}
```
Steps:
Select “o instanceof X x”
Refactor -> Introduce -> Method
Actual output:
```
class X {
private void foo(Object o) {
if (extract1(o)) { // select the entire o instanceof X x
System.out.println(x.toString());
x.foo(null);
}
}
private boolean extract1(Object o) {
return o instanceof X x;
}
}
```
Expected result:
Prevent from introducing method on "instanceof"
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Windows 11
### JDK
22.0.1
### Apache NetBeans packaging
Apache NetBeans provided installer
### Anything else
_No response_
### Are you willing to submit a pull request?
No
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