Major Description
Currently the 0.1.5 warmup logic is very basic when compared to prior versions. The reason for the change it that the warmup logic is not compatible with Lucene 4 code.
Basically the idea of the warmup is prefetch and populate the blockcache with preconfigured fields, so that queries that involve those fields will be in memory. The previous version used reflection to access the terminfos in the segmentreaders to the positions in the various files that needed to be read into memory on a field by field basis. We need to figure out how to do this in Lucene 4