Minor Description
GremlinGroovyScriptEngine sometimes doesn't handle null arguments terribly well given the overloads available to it. There are a number of exceptions in the GLV tests around this as seen in the various generate.groovy files. See if there is a way to improve this and to remove those exceptions in the GLVs. It's possible that using the gremlin-language might help us get rid of those exceptions, but that would still leave the GremlinGroovyScriptEngine suboptimal. Perhaps this is another reason to deprecate Groovy support.