public short[] allocEncodingHash(int suggestedSize) {
        short[] buf = encodingHash;
        if (buf == null || buf.length < suggestedSize) {
            buf = new short[suggestedSize];
        } else {
            encodingHash = null;
        }
        return buf;
    }
Accessor to get thread-local recycler instance
codec/codec-api/src/main/java/com/alipay/sofa/rpc/codec/snappy/BufferRecycler.java