[JAVA-3605] NullPointerException: DecoderContext.decodeWithChildContext Created: 24/Jan/20  Updated: 29/Jan/20  Resolved: 29/Jan/20

Status: Closed
Project: Java Driver
Component/s: POJO
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Carlos S Assignee: Jeffrey Yemin
Resolution: Duplicate Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Cloners
clones JAVA-3376 NullPointerException: DecoderContext.... Closed
Duplicate
duplicates JAVA-3606 NullPointerException: DecoderContext.... Closed

 Description   

Hi,

I'm getting a NPE at DecoderContext.decodeWithChildContext, but I'm not able to reproduce it at will..
The query works for some time, and suddenly starts to fail erratically (some times it fails some times it doestn't).
I tried to find if it was a concurrency type of issue, tried to syncronize access but didn't mattered.

Also happens with many version of the server (3.6.x, 4.0.x).
Tried changing the driver version (now running 3.11.0-rc0) but also didn't mattered.

Anything else you think I can try to corner it?

Regards,

Juan.

Caused by: java.lang.NullPointerException
 at org.bson.codecs.DecoderContext.decodeWithChildContext(DecoderContext.java:93) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decodePropertyModel(PojoCodecImpl.java:213) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decodeProperties(PojoCodecImpl.java:197) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decode(PojoCodecImpl.java:121) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decode(PojoCodecImpl.java:125) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.MapPropertyCodecProvider$MapCodec.decode(MapPropertyCodecProvider.java:92) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.MapPropertyCodecProvider$MapCodec.decode(MapPropertyCodecProvider.java:60) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.DecoderContext.decodeWithChildContext(DecoderContext.java:93) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decodePropertyModel(PojoCodecImpl.java:213) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decodeProperties(PojoCodecImpl.java:197) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decode(PojoCodecImpl.java:121) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.pojo.PojoCodecImpl.decode(PojoCodecImpl.java:125) ~[bson-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandResultArrayCodec.decode(CommandResultArrayCodec.java:52) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:60) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:84) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:41) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.configuration.LazyCodec.decode(LazyCodec.java:47) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.BsonDocumentCodec.readValue(BsonDocumentCodec.java:101) ~[bson-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandResultDocumentCodec.readValue(CommandResultDocumentCodec.java:63) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:84) ~[bson-3.11.0-rc0.jar:?]
 at org.bson.codecs.BsonDocumentCodec.decode(BsonDocumentCodec.java:41) ~[bson-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.ReplyMessage.<init>(ReplyMessage.java:51) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.InternalStreamConnection.getCommandResult(InternalStreamConnection.java:413) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:309) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:259) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.UsageTrackingInternalConnection.sendAndReceive(UsageTrackingInternalConnection.java:99) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection.sendAndReceive(DefaultConnectionPool.java:450) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.CommandProtocolImpl.execute(CommandProtocolImpl.java:72) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:218) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:269) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.DefaultServerConnection.command(DefaultServerConnection.java:131) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.internal.connection.DefaultServerConnection.command(DefaultServerConnection.java:123) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandOperationHelper.executeCommand(CommandOperationHelper.java:341) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandOperationHelper.executeCommand(CommandOperationHelper.java:332) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.CommandOperationHelper.executeCommandWithConnection(CommandOperationHelper.java:218) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.FindOperation$1.call(FindOperation.java:730) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.FindOperation$1.call(FindOperation.java:724) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:463) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.FindOperation.execute(FindOperation.java:724) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.operation.FindOperation.execute(FindOperation.java:88) ~[mongodb-driver-core-3.11.0-rc0.jar:?]
 at com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor.execute(MongoClientDelegate.java:189) ~[mongodb-driver-3.11.0-rc0.jar:?]
 at com.mongodb.client.internal.MongoIterableImpl.execute(MongoIterableImpl.java:143) ~[mongodb-driver-3.11.0-rc0.jar:?]
 at com.mongodb.client.internal.MongoIterableImpl.iterator(MongoIterableImpl.java:92) ~[mongodb-driver-3.11.0-rc0.jar:?]
 at com.mongodb.client.internal.MongoIterableImpl.forEach(MongoIterableImpl.java:121) ~[mongodb-driver-3.11.0-rc0.jar:?]
 at com.mongodb.client.internal.MongoIterableImpl.into(MongoIterableImpl.java:133) ~[mongodb-driver-3.11.0-rc0.jar:?]
 at [my code]



 Comments   
Comment by Ross Lawley [ 29/Jan/20 ]

Dup of JAVA-3606

Comment by Carlos S [ 24/Jan/20 ]

Please ignore this clone of JAVA-3376 , I added a new ticket instead : JAVA-3605

I cant seem to have the privileges to close this ticket myself

Comment by Jeffrey Yemin [ 24/Jan/20 ]

Hi csamail@gmail.com

Can you upload your POJO classes as well as sample documents from the collection that would be returned from your query?

Also, please include any options you use for the query, especially any projections.

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