We have an {{OrderedSet}} which basically is a {{Set}} allowing index based access with the {{List}} interface (or a {{List}} with additional {{Set}} semantics). The implemented looks like this:
{code:java}
public class OrderedSet<E> extends ArrayList<E> implements Set<E> {
... implementation itself is not relevant for this test case...
}
{code}
When such an implementation is used with a {{List}} property
{code:java}
@Valid
public List<...> getDataAsList() // return instance of OrderedSet
{code}
we do get the expected results: {code:java}dataAsList[42]....{code} if something is invalid.
However if you use it with a {{Set}} property
{code:java}
@Valid
public Set<...> getDataAsSet() // return instance of OrderedSet
{code}
the index based access is no longer supported and we only get {code:java}dataAsSet[]....{code}
Please note that both versions returned an index in 5.4.2.
You may find a test case here: https://github.com/abenneke/sandbox/tree/master/hibernate-validator-listset |
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