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JAX-RS, An Object with One-TO-Many - Seeing the 'aggregated' object when fetching XML

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Using JAX-RS, and using RestEasy ( do not think that matters here, or it could matter ....)

Having 2 Entities, Post and Tag
One Post can have many Tag:s

The Post object looks something like this :

The Tag object looks something like this :

When fetching the Post, using the Query, I can see the following - when calling the restful-service:

The question is :
I can see that this actual Post has 2 tags when looking at the code in debug mode.
The relationship is working, I have stuff in my database.

Why can't I see the List with those 2 tags in my XML-feed - The List with tags belongs to the Post-object and should be visible , should not the @XmlRootElement on the tag-object solve this ?

Best regards, Ingo

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