Selecting top k items from a list efficiently in Java / GroovyI recently ran into an interesting problem to solve for my side project: how can I efficiently select the top k elements from a very large list in Java / Groovy? There are many recommendations about how to do that, but I didn't find a comparison of the suggested implementations. This is a crucial problem for my application so I tried out a number of them and here are the results. I chose Groovy fo
