Version: 3.4.0.SNAPSHOT
ClientMetadataHelper tries to get DriverVersion using

Class<InternalStreamConnectionInitializer> clazz = InternalStreamConnectionInitializer.class;
URL versionPropertiesFileURL = clazz.getResource("/version.properties");

but there is another "version.properties" file in classpath - it leads to IllegalArgumentException("Value can not be null") in BsonString constructor.

This prevents any connections from being established to the MongoDB server.