Projection Test Failing

org.bson.codecs.configuration.CodecConfigurationException: Can’t find a codec for class [Ljava.lang.String;.

What is this all about? I get it when trying to test my projection code - both from the test suite and the web page.

Found the problem. The eq filter accepts a filename, and a comma delimited string of values. It does not accept an array of Strings, or a list of Strings for the values to be searched.