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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: 3.5.0
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Component/s: GridFS
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None
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Environment:macOS Sierra (10.12.6)
GridFSFileCodec throws an exception when the file's "metadata" field is null. GridFSFileCodec.java#73
Underlying problem in the BsonDocument class (containsKey("metadata") return true when the value is BsonNull.
public BsonDocument getDocument(final Object key, final BsonDocument defaultValue) { if (!containsKey(key)) { return defaultValue; } return get(key).asDocument(); }
Full stacktrace:
Exception in thread "main" org.bson.BsonInvalidOperationException: Value expected to be of type DOCUMENT is of unexpected type NULL
at org.bson.BsonValue.throwIfInvalidType(BsonValue.java:419)
at org.bson.BsonValue.asDocument(BsonValue.java:47)
at org.bson.BsonDocument.getDocument(BsonDocument.java:506)
at com.mongodb.client.gridfs.codecs.GridFSFileCodec.decode(GridFSFileCodec.java:73)
at com.mongodb.client.gridfs.codecs.GridFSFileCodec.decode(GridFSFileCodec.java:48)
at com.mongodb.operation.CommandResultArrayCodec.decode(CommandResultArrayCodec.java:52)
at com.mongodb.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:60)
at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:84)
at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:41)
at org.bson.codecs.configuration.LazyCodec.decode(LazyCodec.java:47)
at org.bson.codecs.BsonDocumentCodec.readValue(BsonDocumentCodec.java:101)
at com.mongodb.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:63)
at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:84)
at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:41)
at com.mongodb.connection.ReplyMessage.<init>(ReplyMessage.java:50)
at com.mongodb.connection.CommandProtocol.getResponseDocument(CommandProtocol.java:132)
at com.mongodb.connection.CommandProtocol.execute(CommandProtocol.java:111)
at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:159)
at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:289)
at com.mongodb.connection.DefaultServerConnection.command(DefaultServerConnection.java:176)
at com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol(CommandOperationHelper.java:216)
at com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol(CommandOperationHelper.java:207)
at com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol(CommandOperationHelper.java:113)
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:715)
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:709)
at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:433)
at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:406)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:709)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:81)
at com.mongodb.Mongo.execute(Mongo.java:810)
at com.mongodb.Mongo$2.execute(Mongo.java:797)
at com.mongodb.OperationIterable.iterator(OperationIterable.java:47)
at com.mongodb.FindIterableImpl.iterator(FindIterableImpl.java:200)
at com.mongodb.client.gridfs.GridFSFindIterableImpl.iterator(GridFSFindIterableImpl.java:88)