Datastore.ensureIndexes() breaks morphia

[cmoetzing]

Description

When I call Datastore.ensureIndexes() morphia breaks and subsequent queries fail with
java.lang.IllegalArgumentException: BasicBSONList can only work with numeric keys, not: [elementData]
The query works before calling Datastore.ensureIndexes() (see example).

Workaround

I create separate Morphia and Datastore instances to call ensureIndexes(). These instances are then deleted and new ones created for application queries.

Versions

• org.mongodb.morphia:morphia:1.1.1
• org.mongodb:mongo-java-driver:3.2.2
• MongoDB 3.2.4
• Java 8 (build 1.8.0_66-b18)

Stacktrace

Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgumentException: BasicBSONList can only work with numeric keys, not: [elementData] at org.mongodb.morphia.mapping.EmbeddedMapper.fromDBObject(EmbeddedMapper.java:74) at org.mongodb.morphia.mapping.Mapper.readMappedField(Mapper.java:772) at org.mongodb.morphia.mapping.Mapper.fromDb(Mapper.java:230) at org.mongodb.morphia.mapping.Mapper.fromDBObject(Mapper.java:191) at org.mongodb.morphia.query.MorphiaIterator.convertItem(MorphiaIterator.java:134) at org.mongodb.morphia.query.MorphiaIterator.processItem(MorphiaIterator.java:146) at org.mongodb.morphia.query.MorphiaIterator.next(MorphiaIterator.java:117) at org.mongodb.morphia.query.QueryImpl.asList(QueryImpl.java:150) at it.test.Main.run(Main.java:44) at it.test.Main.main(Main.java:24) Caused by: java.lang.IllegalArgumentException: BasicBSONList can only work with numeric keys, not: [elementData] at org.bson.types.BasicBSONList._getInt(BasicBSONList.java:168) at org.bson.types.BasicBSONList._getInt(BasicBSONList.java:160) at org.bson.types.BasicBSONList.get(BasicBSONList.java:105) at org.mongodb.morphia.mapping.MappedField.getDbObjectValue(MappedField.java:190) at org.mongodb.morphia.converters.Converters.fromDBObject(Converters.java:121) at org.mongodb.morphia.mapping.ValueMapper.fromDBObject(ValueMapper.java:20) at org.mongodb.morphia.mapping.Mapper.readMappedField(Mapper.java:766) at org.mongodb.morphia.mapping.Mapper.fromDb(Mapper.java:230) at org.mongodb.morphia.mapping.EmbeddedMapper.readMapOrCollectionOrEntity(EmbeddedMapper.java:206) at org.mongodb.morphia.mapping.EmbeddedMapper.readCollection(EmbeddedMapper.java:142) at org.mongodb.morphia.mapping.EmbeddedMapper.fromDBObject(EmbeddedMapper.java:45) ... 9 more

Example

See it.test.Main#run() for data setup. Then run it.test.Main#main()
morphia-index-bug.zip

[ghost]

Have the same problem. After removing datastore.ensureIndexes(); from code it works.

[evanchooly]

See comment on #923