Description
All methods in ZlibCompressor.c are named like "Java_org_apache_hadoop_io_compress_zlib_ZlibCompressor_METHODNAME"
There is one that is called: Java_org_apache_hadoop_io_compress_ZlibCompressor_setDictionary
Should be: Java_org_apache_hadoop_io_compress_zlib_ZlibCompressor_setDictionary