HTTPCLIENT-1625 Completely overhaul GSS-API-based authentication backend

rename AuthSchemeV2 to AuthScheme2, and some internal GSS variable renames

rename gss serverName to PeerName (was spn in previous commit)

don't add SPNEGO to DefaultAuthenticationStrategy

rename GGSSchemeBase to GSSchemeBase

remove KerberosScheme

rename SPNegoScheme to SpnegoScheme

Author: stoty

httpclient5-testing/src/test/java/org/apache/hc/client5/testing/extension/async/StandardTestClientBuilder.java

@@ -33,6 +33,7 @@
 import org.apache.hc.client5.http.HttpRequestRetryStrategy;
 import org.apache.hc.client5.http.UserTokenHandler;
 import org.apache.hc.client5.http.auth.AuthSchemeFactory;
+import org.apache.hc.client5.http.auth.CredentialsProvider;
 import org.apache.hc.client5.http.config.ConnectionConfig;
 import org.apache.hc.client5.http.config.TlsConfig;
 import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient;
@@ -153,6 +154,12 @@ public TestAsyncClientBuilder setDefaultAuthSchemeRegistry(final Lookup<AuthSche
         return this;
     }
 
+    @Override
+    public TestAsyncClientBuilder setDefaultCredentialsProvider(final CredentialsProvider credentialsProvider) {
+        this.clientBuilder.setDefaultCredentialsProvider(credentialsProvider);
+        return this;
+    }
+
     @Override
     public TestAsyncClient build() throws Exception {
         final PoolingAsyncClientConnectionManager connectionManager = connectionManagerBuilder

httpclient5-testing/src/test/java/org/apache/hc/client5/testing/extension/async/TestAsyncClientBuilder.java

@@ -33,6 +33,7 @@
 import org.apache.hc.client5.http.HttpRequestRetryStrategy;
 import org.apache.hc.client5.http.UserTokenHandler;
 import org.apache.hc.client5.http.auth.AuthSchemeFactory;
+import org.apache.hc.client5.http.auth.CredentialsProvider;
 import org.apache.hc.client5.http.config.TlsConfig;
 import org.apache.hc.core5.http.Header;
 import org.apache.hc.core5.http.HttpRequestInterceptor;
@@ -101,6 +102,10 @@ default TestAsyncClientBuilder setDefaultAuthSchemeRegistry(Lookup<AuthSchemeFac
         throw new UnsupportedOperationException("Operation not supported by " + getProtocolLevel());
     }
 
+    default TestAsyncClientBuilder setDefaultCredentialsProvider(CredentialsProvider credentialsProvider) {
+        throw new UnsupportedOperationException("Operation not supported by " + getProtocolLevel());
+    }
+
     TestAsyncClient build() throws Exception;
 
 }

httpclient5-testing/src/test/java/org/apache/hc/client5/testing/extension/sync/StandardTestClientBuilder.java

@@ -33,6 +33,7 @@
 import org.apache.hc.client5.http.HttpRequestRetryStrategy;
 import org.apache.hc.client5.http.UserTokenHandler;
 import org.apache.hc.client5.http.auth.AuthSchemeFactory;
+import org.apache.hc.client5.http.auth.CredentialsProvider;
 import org.apache.hc.client5.http.classic.ExecChainHandler;
 import org.apache.hc.client5.http.config.ConnectionConfig;
 import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
@@ -150,6 +151,12 @@ public TestClientBuilder addExecInterceptorLast(final String name, final ExecCha
         return this;
     }
 
+    @Override
+    public TestClientBuilder setDefaultCredentialsProvider(final CredentialsProvider credentialsProvider) {
+        this.clientBuilder.setDefaultCredentialsProvider(credentialsProvider);
+        return this;
+    }
+
     @Override
     public TestClient build() throws Exception {
         final HttpClientConnectionManager connectionManagerCopy = connectionManager != null ? connectionManager :

httpclient5-testing/src/test/java/org/apache/hc/client5/testing/extension/sync/TestClientBuilder.java

@@ -33,6 +33,7 @@
 import org.apache.hc.client5.http.HttpRequestRetryStrategy;
 import org.apache.hc.client5.http.UserTokenHandler;
 import org.apache.hc.client5.http.auth.AuthSchemeFactory;
+import org.apache.hc.client5.http.auth.CredentialsProvider;
 import org.apache.hc.client5.http.classic.ExecChainHandler;
 import org.apache.hc.client5.http.io.HttpClientConnectionManager;
 import org.apache.hc.core5.http.Header;
@@ -98,6 +99,10 @@ default TestClientBuilder addExecInterceptorLast(String name, ExecChainHandler i
         throw new UnsupportedOperationException("Operation not supported by " + getProtocolLevel());
     }
 
+    default TestClientBuilder setDefaultCredentialsProvider(CredentialsProvider credentialsProvider) {
+        throw new UnsupportedOperationException("Operation not supported by " + getProtocolLevel());
+    }
+
     TestClient build() throws Exception;
 
 }