Protocol set to 1.1 (#766)

By default http2.0 was being used , which has been changed to 1.1 as  web server behaved incorrectly when HTTP/2 is enabled

Author: sinhaashish

api/src/main/java/io/minio/MinioClient.java

@@ -68,6 +68,7 @@
 import okhttp3.RequestBody;
 import okhttp3.Response;
 import okhttp3.ResponseBody;
+import okhttp3.Protocol;
 
 import org.joda.time.DateTime;
 import org.xmlpull.v1.XmlPullParser;
@@ -657,11 +658,14 @@ public MinioClient(String endpoint, int port, String accessKey, String secretKey
     if (httpClient != null) {
       this.httpClient = httpClient;
     } else {
+      List<Protocol> protocol = new LinkedList<>();
+      protocol.add(Protocol.HTTP_1_1);
       this.httpClient = new OkHttpClient();
       this.httpClient = this.httpClient.newBuilder()
         .connectTimeout(DEFAULT_CONNECTION_TIMEOUT, TimeUnit.SECONDS)
         .writeTimeout(DEFAULT_CONNECTION_TIMEOUT, TimeUnit.SECONDS)
         .readTimeout(DEFAULT_CONNECTION_TIMEOUT, TimeUnit.SECONDS)
+        .protocols(protocol)
         .build();
     }
 

functional/FunctionalTest.java

@@ -1196,14 +1196,11 @@ public static void getObject_test7() throws Exception {
       }
 
       InputStream stream = client.getObject(bucketName, objectName, sse);
-      byte[] getbyteArray = new byte[stream.available()];
+      byte[] getbyteArray = new byte[stream.available()]; 
       int bytes_read_get = stream.read(getbyteArray);
       String getString = new String(getbyteArray, StandardCharsets.UTF_8);
       stream.close();
 
-      // client.getObject(bucketName, objectName, sse)
-      // .close();
-
       // Compare if contents received are same as the initial uploaded object.
       if ((!putString.equals(getString)) || (bytes_read_put != bytes_read_get)) {
         throw new Exception("Contents received from getObject doesn't match initial contents.");