+(void) throwIfTrueWithParam: (Boolean) param {
    @try {
        if (param) {
            @throw [NSException
                exceptionWithName:@"TestException"
                reason:@"test exception"
                userInfo:nil];;
        }
    }
    @catch (NSException *exception) {
        NSLog(@"%@", @"catch");
    }
    @finally {
        NSLog(@"%@", @"finally");
    }
}

[self throwIfTrueWithParam:true];
//printed: "catch" and "finally"
[self throwIfTrueWithParam:false];
//printed only "finally"