Apache NetBeans version

Apache NetBeans 27

What happened

A record class that is package-private is always shown as unused, unless there is a constructor invocation ("new" expression) in the same source file. The record class name is syntax-highlighted as unused, and a hint 'Remove unused "{record name}"' is shown, although the class is used within the same package.

Language / Project Type / NetBeans Component

No response

How to reproduce

Create a package-private record class:

package net.example;
record Example(int n) { }

Add a use of it in the same package:

package net.example;
class Test { { System.out.println(new Example(0).n()); } }

=> The declaration of record Example erroneously shows it as unused.

Add a usage within the same source file as the record class:

package net.example;
record Example(int n) { }
class Test2 { { new Example(0); } }

=> The "unused" disappears.

Replace the record class by a regular class:

package net.example;
class Example { int n; Example(int n) { } int n() { return n; } }

=> The "unused" disappears as well.

Did this work correctly in an earlier version?

No / Don't know

Operating System

Windows 10

JDK

21

Apache NetBeans packaging

Apache NetBeans binary zip

Anything else

No response

Are you willing to submit a pull request?

No