null skipping for array elements

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I've recently came across this problem where the REST api returns a json string representing a inventory where the array index represents the slot ID and the object the item in it. Empty slots will have a null value.

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I would like to have the ability to skip these null values in arrays when deserializing.

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[pjfanning]

This seems like a very specialized feature, ie a feature that is not needed by many users.
There are lots of ways to filter Java collections now (deserializing with Jackson and then filtering the collection).
You could also write a custom deserializer.
Jackson already has so many features and at some stage, you need to choose which features are the most useful to support.