ADDITIONAL SYSTEM INFORMATION :
~ $ uname -a
Linux [redacted] 4.18.0-513.24.1.el8_9.x86_64 #1 SMP Thu Mar 14 14:20:09 EDT 2024 x86_64 x86_64 x86_64 GNU/Linux
~ $ rpm -q glibc
glibc-2.28-236.el8_9.13.x86_64
~ $ getconf GNU_LIBPTHREAD_VERSION
NPTL 2.28

A DESCRIPTION OF THE PROBLEM :
javac can no longer successfully compile the attached source code when upgrading from version 22.0.2 to 23. Needless to say, I could not find any release notes that indicates that this is expected behavior.

REGRESSION : Last worked in version 22.0.2

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
In a terminal, do
$ [path-to-jdk]/bin/javac Main.java
>error: cannot select a static class from a parameterized type
>1 error
Here "Main.java" refers to the file containing the source code pasted in the source-code section below


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Compiled Java 23 class-files on the working directory
ACTUAL -
An error message from the javac command:
>error: cannot select a static class from a parameterized type
>1 error
And no class-files present

---------- BEGIN SOURCE ----------
public class Main {
    public static void main(String[] args) {
        var result = switch (get()) {
            case MyInterface.MyBoolean(var key, var value) -> key.toString() + value.toString();
            case MyInterface.MyString(var key, var value) -> key.toString() + value.toLowerCase();
        };
        System.out.println("result = " + result);
    }

    public sealed interface MyInterface<K extends MyInterface.KeyType, T> {
        K key();
        T value();

        record MyString(KeyType.A key, String value) implements MyInterface<KeyType.A, String> {
        }
        record MyBoolean(KeyType.B key, Boolean value) implements MyInterface<KeyType.B, Boolean> {
        }

        sealed interface KeyType {
            enum A implements KeyType {A1, A2}
            enum B implements KeyType {B1, B2}
        }

    }
    private static MyInterface<?, ?> get() {
        return null;
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
The problem can be avoided by replacing the 'var'-keyword with an explicit type. Note that this is only necessary for the KeyType-variables. The String and Boolean parameter works fine with 'var'

FREQUENCY : always