Snappy - Port of Snappy to Java

This is a rewrite (port) of Snappy writen in pure Java. This compression code produces a byte-for-byte exact copy of the output created by the original C++ code, and extremely fast.

The Snappy micro-benchmark has been ported, and can be used to measure the performance of this code against the excellent Snappy JNI wrapper from xerial. As you can see in the results below, the pure Java port is 20-30% faster for block compress, 0-10% slower for block uncompress, and 0-5% slower for round-trip block compression. These results were run with Java 7 on a Core i7, 64-bit Mac.