Instantiated bean with private Constructor

[Gaurav Ram]

Hi,

I have created one bean with Default Private Constructor like below:

  public class Test
{
 
private Test()
{
System.out.println("----- test bean constructor ------");
}
 
}  

and i make its entry in applicationContext.xml, now when i run my server it run successfully and also instantiated my Test bean but i think it should give error as my constructor is Private.

Can you please tell me why it allows this scenerio?

Thanks
Gaurav

[Stevi Deter]

Gaurav,

This is explained in the Spring forums in this thread.

The short answer is that Spring is using reflection to set the constructor's accessibility to true for the purpose of instantiating it. The thread also explains why and how to use a security manager to override that behavior if you need to.

[Gaurav Ram]

Again thank you very much sir for explaining me so well and giving me such a good link to study, that really helpful and open many windows of my mind and also removed many hidden queries.

Thanks again Sir,
Gaurav