harness.check(param.getQTables() == null);
harness.check(param.getDCHuffmanTables() == null);
harness.check(param.getACHuffmanTables() == null);
// check that tiling is not supported
harness.check(!param.canWriteTiles());
// check that progressive encoding is supported
harness.check(param.canWriteProgressive());
// check the default progressive mode