I have a test like below:
public class TestSizeAnnotation
{
public static void main(String[] args)
{
System.out.println(Validation.buildDefaultValidatorFactory().getValidator().validate(new C()));
}
public static class P
{
private List<String> lst = newArrayList("AA");
@Size(max=0, message="P")
public List<String> getLst()
{
return lst;
}
public void setLst(List<String> lst)
{
this.lst = lst;
}
}
public static class C extends P
{
@Override
@Size(max=5, message="C")
public List<String> getLst()
{
return super.getLst();
}
}
}
with the following output:
[ConstraintViolationImpl{interpolatedMessage='P', propertyPath=lst, rootBeanClass=class com....validator.TestSizeAnnotation$C, messageTemplate='P'}]
However, I expected that the annotation can @Size
be overridden, and no warning will appear.
Is there a way to accomplish that?
EDIT: I found a bug seems related to that, but I run 4.2.0 final and still get the above behavior.
Overriding validation annotations is actually not supported for JSR-303. Instead annotations on overridden methods in the subclass will be applied cumulatively: From section 3.3 of the specification:
A constraint declaration can be placed on an interface. For a given class, constraint declarations held on super- classes as well as interfaces are evaluated by the Bean Validation provider. Rules are formally described in Section 3.4.5. The effect of constraint declarations is cumulative. Constraints declared on a superclass getter will be validated along with any constraints defined on an overridden version of the getter according to the Java Language Specification visibility rules.