JAX-RS: Header "Accept-Encoding:gzip/deflate" sufficient for compression

Question

I am using jax-rs and I want to enable compression.

Is setting the header sufficient to enable compression?

headers.add("Accept-Encoding", "gzip, deflate");

According to How to enable gzip compression for content encoding with Jersey (JAX-RS 2.0) client?, there is a "GZipEncoder.class" but Jax-RS has not such a class.

client.register(GZipEncoder.class);