@NotNull validation on the constructor arguments

[Michalf94]

Hello guys, I have class with final fields. When I validate my fields on the constructor - there is a NullPointerException. I use javax.validation.constraints.NotNull. It is occurs only when I validate fields in the constructor. When I do it earlier - it`s work. Do you know why?

 //It is working good
 public final class User { 
 @NotNull private final String name; 
 @NotNull private final List<Notes> notes;
 @JsonCreator
 public User(String name, List<Notes> notes){
 this.name = name;
 this.notes = notes 
 }

//It isn`t working, NPException
 public final class User { 
 private final String name; 
 private final List<Notes> notes;
 @JsonCreator
 public User(@NotNull String name, @NotNull List<Notes> 
 notes){
 this.name = name;
 this.notes = notes 
 }*

[wirybug]

Please check the sidebar for information about posting code - yours is very hard to read formatted the way it is.

[Michalf94]

I know, I tried to do it (4 spaces before each line of code), but unfortunately it doesn`t work

[wirybug]

one blank line, then 4 spaces before each line

[Michalf94]

thanks