Make instance fields final so they are guaranteed to be published

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@652726 13f79535-47bb-0310-9956-ffa450edef68

module-client/src/examples/org/apache/http/examples/client/ClientMultiThreadedExecution.java

@@ -103,10 +103,10 @@ public class ClientMultiThreadedExecution {
      */
     static class GetThread extends Thread {
         
-        private HttpClient httpClient;
-        private HttpContext context;
-        private HttpGet httpget;
-        private int id;
+        private final HttpClient httpClient;
+        private final HttpContext context;
+        private final HttpGet httpget;
+        private final int id;
         
         public GetThread(HttpClient httpClient, HttpGet httpget, int id) {
             this.httpClient = httpClient;

module-client/src/main/java/org/apache/http/auth/AuthScope.java

@@ -73,16 +73,16 @@ public class AuthScope {
     public static final AuthScope ANY = new AuthScope(ANY_HOST, ANY_PORT, ANY_REALM, ANY_SCHEME);
 
     /** The authentication scheme the credentials apply to. */
-    private String scheme = null;
+    private final String scheme;
     
     /** The realm the credentials apply to. */
-    private String realm = null;
+    private final String realm;
     
     /** The host the credentials apply to. */
-    private String host = null;
+    private final String host;
         
     /** The port the credentials apply to. */
-    private int port = -1;
+    private final int port;
         
     /** Creates a new credentials scope for the given 
      * <tt>host</tt>, <tt>port</tt>, <tt>realm</tt>, and 

module-client/src/main/java/org/apache/http/impl/client/DefaultHttpRequestRetryHandler.java

@@ -51,10 +51,10 @@ import org.apache.http.protocol.ExecutionContext;
 public class DefaultHttpRequestRetryHandler implements HttpRequestRetryHandler {
 
     /** the number of times a method will be retried */
-    private int retryCount;
+    private final int retryCount;
     
     /** Whether or not methods that have successfully sent their request will be retried */
-    private boolean requestSentRetryEnabled;
+    private final boolean requestSentRetryEnabled;
     
     /**
      * Default constructor

module-client/src/main/java/org/apache/http/impl/conn/IdleConnectionHandler.java

@@ -53,7 +53,7 @@ public class IdleConnectionHandler {
     private final Log LOG = LogFactory.getLog(IdleConnectionHandler.class);
     
     /** Holds connections and the time they were added. */
-    private Map<HttpConnection,Long> connectionToAdded;
+    private final Map<HttpConnection,Long> connectionToAdded;
     
 
     public IdleConnectionHandler() {

module-client/src/main/java/org/apache/http/impl/conn/Wire.java

@@ -44,7 +44,7 @@ import org.apache.commons.logging.Log;
  */
 public class Wire {
 
-    private Log log;
+    private final Log log;
     
     public Wire(Log log) {
         this.log = log;