this.requestExec = new HttpRequestExecutor();
this.proxyAuthStrategy = new ProxyAuthenticationStrategy();
this.authenticator = new HttpAuthenticator();
this.proxyAuthState = new AuthState();
this.authSchemeRegistry = new AuthSchemeRegistry();
this.authSchemeRegistry.register(AuthSchemes.BASIC, new BasicSchemeFactory());
this.authSchemeRegistry.register(AuthSchemes.DIGEST, new DigestSchemeFactory());
this.authSchemeRegistry.register(AuthSchemes.NTLM, new NTLMSchemeFactory());
this.authSchemeRegistry.register(AuthSchemes.SPNEGO, new SPNegoSchemeFactory());
this.authSchemeRegistry.register(AuthSchemes.KERBEROS, new KerberosSchemeFactory());
this.reuseStrategy = new DefaultConnectionReuseStrategy();