}
public Executor authPreemptiveProxy(final HttpHost host) {
final BasicScheme basicScheme = new BasicScheme();
try {
basicScheme.processChallenge(new BasicHeader(AUTH.PROXY_AUTH, "BASIC "));
} catch (final MalformedChallengeException ingnore) {
}
this.authCache.put(host, basicScheme);
return this;
}