Try the code like:
HttpServer httpServer = GrizzlyHttpServerFactory.createHttpServer(
BASE_URI, rc, false);
CompressionConfig compressionConfig =
httpServer.getListener("grizzly").getCompressionConfig();
compressionConfig.setCompressionMode(CompressionConfig.CompressionMode.ON); // the mode
compressionConfig.setCompressionMinSize(1); // the min amount of bytes to compress
compressionConfig.setCompressableMimeTypes("text/plain", "text/html"); // the mime types to compress
httpServer.start();