public class X {
    public static void main(String [] args) {
        Object o = args;
        switch (o) {
           case int x:
               System.out.println("int x");
               break;
        }
    }
}

while compiling results in:

/home/srikanth/tmp/X.java:1: error: bad operand types for binary operator '=='
public class X {
^
  first type: int
  second type: Object
1 error