Why ternary operation gives nullpointer while its ifelse counterpart doesn't? [duplicate]

Answer 1

Ok. Let's try in this way

public static void main(String[] args){
  System.out.println(withTernary(null, null));
}

private static Boolean withTernary(String val, Boolean defVal){
  return (val == null ? defVal : Boolean.valueOf("true".equalsIgnoreCase(val)));
}

Now it will works fine. Now there is no unboxing here and will not give you exception. But in other way due to null unbox you will get NPE

public static void main(String[] args){
    System.out.println(withTernary(null, null)); //Null Pointer
}

private static Boolean withTernary(String val, Boolean defVal){
    return (val == null ? defVal : "true".equalsIgnoreCase(val));
}