Issue eclipse-ee4j#4897 - Support for Apache HTTP Client 5.x

Preparations steps from the migration guide - Address deprecations

Signed-off-by: Steffen Nießing <[email protected]>

connectors/apache-connector/src/main/java/org/glassfish/jersey/apache/connector/ApacheConnector.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, 2020 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2021 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0, which is available at
@@ -47,6 +47,7 @@
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSocketFactory;
 
+import org.apache.http.ssl.SSLContexts;
 import org.glassfish.jersey.client.ClientProperties;
 import org.glassfish.jersey.client.ClientRequest;
 import org.glassfish.jersey.client.ClientResponse;
@@ -86,7 +87,6 @@
 import org.apache.http.conn.socket.LayeredConnectionSocketFactory;
 import org.apache.http.conn.socket.PlainConnectionSocketFactory;
 import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
-import org.apache.http.conn.ssl.SSLContexts;
 import org.apache.http.entity.AbstractHttpEntity;
 import org.apache.http.entity.BufferedHttpEntity;
 import org.apache.http.entity.ContentLengthStrategy;
@@ -170,7 +170,6 @@
  * @author Arul Dhesiaseelan (aruld at acm.org)
  * @see ApacheClientProperties#CONNECTION_MANAGER
  */
-@SuppressWarnings("deprecation")
 class ApacheConnector implements Connector {
 
     private static final Logger LOGGER = Logger.getLogger(ApacheConnector.class.getName());