Java Spring bean with private constructor

Question

Is possible in Spring that class for bean doesn\'t have public constructor but only private ? Will this private constructor invoked when bean is created? Thanks.

Answer 1

Yes ! Spring can access private constructor. It will works internally like below code.

       try{
    Class c= Class.forName("A"); // A - className
    Constructor c1[]=c.getDeclaredConstructors();
    c1[0].setAccessible(true);
    A a= (A)c1[0].newInstance();
    }
    catch (Exception e){
        e.printStackTrace();
    }