class Test {
void test(Object o, Integer integer) {
switch (o) {
case String s && integer -> System.out.println();
default -> {}
}
switch (o) {
case String s && isBool() -> System.out.println();
default -> {}
}
switch (o) {
case Integer i && isInt():
break;
default:
break;
}
switch (o) {
case Integer i && null:
break;
default:
break;
}
}
private native boolean isBool();
private native int isInt();
}