(Reported by Kristian Thomassen.)

Consider code like:
---
public class UnaryMinus {
    public static void main(String... args) {
        Character var = (char) - (false ? (char) args.length : (char) 2);
    }
}
---

When run, this will cause a crash:
---
$ java UnaryMinus.java
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index -2 out of bounds for length 128
        at java.base/java.lang.Character.valueOf(Character.java:8595)
        at UnaryMinus.main(UnaryMinus.java:3)
---