[NETBEANS-4829] Incorrect hint about unused assigned value in switch statement

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 12.1
• Component/s: java - Hints

Environment

Java 15, Windows 10

• Assignee: Unassigned
• Reporter: dennis lucero
• Created: 21/Sep/20 16:30
• Updated: 21/Sep/20 16:30

Description

In some switch statements NetBeans displays a hint saying the assigned value is never used even though it is:

public final class SwitchAssignedValueNeverUsed {

    public enum E {
        A,
        B;
    }

    public static void main(final String[] args) {
        E e = E.A;
        String s;
        switch (e) {
            case A -> s = "a"; // Hint: The assigned value is never used
            case B -> s = "b";
            default ->
                throw new AssertionError(e.name());
        }
        System.out.println(s);
    }
}