core/play/src/main/java/play/core/cookie/encoding/ClientCookieEncoder.java
public String encode(Cookie cookie) {
    if (cookie == null) {
      throw new NullPointerException("cookie");
    }
    StringBuilder buf = new StringBuilder();
    encode(buf, cookie);
    return stripTrailingSeparator(buf);
  }
public String encode(Cookie cookie) {
    if (cookie == null) {
      throw new NullPointerException("cookie");
    }
    StringBuilder buf = new StringBuilder();
    encode(buf, cookie);
    return stripTrailingSeparator(buf);
  }
public String encode ( Cookie cookie ) { if ( cookie == null ) { throw new NullPointerException ( "cookie" ) ; } StringBuilder buf = new StringBuilder ( ) ; encode ( buf , cookie ) ; return stripTrailingSeparator ( buf ) ; }
Encodes the specified cookie into a Cookie header value.

@param cookie specified the cookie
@return a Rfc6265 style Cookie header value
Encodes the specified cookie into a Cookie header value .