[hibernate-issues] [Hibernate-JIRA] Created: (HV-466) Avoid repeated validation of constraints in certain type hierarchies

[Gunnar Morling (JIRA)]

Avoid repeated validation of constraints in certain type hierarchies
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                 Key: HV-466
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-466
             Project: Hibernate Validator
          Issue Type: Bug
          Components: engine
            Reporter: Gunnar Morling
            Priority: Minor
             Fix For: 4.x


Let there be the following type hierarchy where the same interface is implemented by two types in an inheritance hierarchy:

{code:java}
public interface A {
		
	@NotNull
	String getA();
}
	
public class B implements A {

	public String getA() {
		return null;
	}
}

public class C extends B implements A {
		
}
{code}

When validating an instance of {{C}} the {{@NotNull}} constraint on {{A#getA()}} is evaluated twice when traversing the type hierarchy of {{C}} in {{ValidatorImpl}}.

This seems to be against the BV spec. which says in chapter 3.5: 

{quote}
Note that this [algorithm] implies that a given validation constraint will not be processed more than once per validation.
{quote}

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