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Type:
Bug
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Resolution: Works as Designed
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Priority:
Major - P3
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None
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Affects Version/s: 3.11.0
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Component/s: Codecs
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None
How to re-produce:
First, create an index that has partialFilterExpression which contains DBRef, such as:
db.user.createIndex({"organisation": 1, "email": 1}, {name: "org-uniq-email", unique: true, partialFilterExpression: {"organisation": DBRef("organisation", ObjectId("59ce08baf264b906810fe8c5")), "email": {$exists: true}}})
Then try to list and print those indexes:
public static void main(String[] args) { try (MongoClient mongo = new MongoClient("localhost")) { MongoDatabase db = mongo.getDatabase("test"); MongoCollection<Document> col = db.getCollection("user"); col.listIndexes().spliterator().forEachRemaining(index -> System.out.println(index.toJson())); } }
This results in exception:
Exception in thread "main" org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for class com.mongodb.DBRef. at org.bson.codecs.configuration.CodecCache.getOrThrow(CodecCache.java:46) at org.bson.codecs.configuration.ProvidersCodecRegistry.get(ProvidersCodecRegistry.java:63) at org.bson.codecs.configuration.ProvidersCodecRegistry.get(ProvidersCodecRegistry.java:37) at org.bson.codecs.DocumentCodec.writeValue(DocumentCodec.java:184) at org.bson.codecs.DocumentCodec.writeMap(DocumentCodec.java:199) at org.bson.codecs.DocumentCodec.writeValue(DocumentCodec.java:182) at org.bson.codecs.DocumentCodec.writeMap(DocumentCodec.java:199) at org.bson.codecs.DocumentCodec.encode(DocumentCodec.java:141) at org.bson.codecs.DocumentCodec.encode(DocumentCodec.java:45) at org.bson.Document.toJson(Document.java:439) at org.bson.Document.toJson(Document.java:412) at org.bson.Document.toJson(Document.java:399)