Fix NullPointerException in MongoSequenceIncrementer #4811
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When using a MongoDB repository for the first time, the collections used by MongoSequenceIncrementer don't yet exist, which results in the call to findOneAndUpdate().getLong() to reutrn a null, which then results in an NPE unboxing the Long into a long. Adding upsert(true) creates the initial document with a count of 0 and immediately increments it to 1. Signed-off-by: blake_bauman <[email protected]>
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When using a MongoDB repository for the first time, the collections used by MongoSequenceIncrementer don't yet exist, which results in the call to findOneAndUpdate().getLong() to reutrn a null, which then results in an NPE unboxing the Long into a long.
Adding upsert(true) creates the initial document with a count of 0 and immediately increments it to 1.