2007-11-15 Apache HttpComponents AsyncClient Java library implementing an asynchronous HTTP client based on HttpCore NIO and HttpClient components. HttpAsyncClient is a library for asynchronous client-side HTTP communication built on HttpCore NIO and HttpClient components. It is a complementary library to Apache HttpClient for special cases where ability to handle a great number of concurrent connections is more important than performance in terms of a raw data throughput. Java Hypertext Transfer Protocol -- HTTP/1.1 IETF RFC 2616 Hypertext Transfer Protocol -- HTTP/1.0 IETF RFC 1945 Upgrading to TLS Within HTTP/1.1 IETF RFC 2817 HTTP Over TLS IETF RFC 2818 HTTP Authentication: Basic and Digest Access Authentication IETF RFC 2617 HTTP State Management Mechanism (Cookies) IETF RFC 2109 HTTP State Management Mechanism (Cookie2) IETF RFC 2965