I'm not 100% sure this is a Java bug, it may be a server or doc bug.

The following code fails to insert an object. If you change the last param (in the update method - multi = true) to false then this works as expected.

If this is the expected behavior, let me know and I will update the Javadoc comment for the method.

final ObjectId OBJ_ID = new ObjectId("4d09359b1cc223ebd7f9797f");

final BasicDBObject version = new BasicDBObject(ID, OBJ_ID);
version.put("prodVersion", pProdVersion);
version.put("devVersion", pDevVersion);

version.put("modified", now());

collection.update(new BasicDBObject(ID, OBJ_ID), version, true, true);