Fix connection reuse when using apache-http-client versions 4.3 and 4.4 (#231)

Author: nitzanj

cloudinary-http43/src/main/java/com/cloudinary/http43/ApiStrategy.java

@@ -10,6 +10,7 @@
 import com.cloudinary.utils.ObjectUtils;
 import com.cloudinary.utils.StringUtils;
 import org.apache.http.Consts;
+import org.apache.http.HttpEntity;
 import org.apache.http.HttpHost;
 import org.apache.http.client.config.RequestConfig;
 import org.apache.http.client.entity.UrlEncodedFormEntity;
@@ -21,6 +22,7 @@
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.impl.client.HttpClients;
+import org.apache.http.util.EntityUtils;
 import org.cloudinary.json.JSONException;
 import org.cloudinary.json.JSONObject;
 
@@ -98,8 +100,9 @@ private ApiResponse getApiResponse(HttpUriRequest request) throws Exception {
         CloseableHttpResponse response = client.execute(request);
         try {
             code = response.getStatusLine().getStatusCode();
-            InputStream responseStream = response.getEntity().getContent();
-            responseData = StringUtils.read(responseStream);
+            final HttpEntity entity = response.getEntity();
+            responseData = StringUtils.read(entity.getContent());
+            EntityUtils.consume(entity);
         } finally {
             response.close();
         }

cloudinary-http44/src/main/java/com/cloudinary/http44/ApiStrategy.java

@@ -10,6 +10,7 @@
 import com.cloudinary.utils.ObjectUtils;
 import com.cloudinary.utils.StringUtils;
 import org.apache.http.Consts;
+import org.apache.http.HttpEntity;
 import org.apache.http.HttpHost;
 import org.apache.http.NameValuePair;
 import org.apache.http.client.config.RequestConfig;
@@ -22,6 +23,7 @@
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.impl.client.HttpClients;
+import org.apache.http.util.EntityUtils;
 import org.cloudinary.json.JSONException;
 import org.cloudinary.json.JSONObject;
 
@@ -100,8 +102,9 @@ private ApiResponse getApiResponse(HttpUriRequest request) throws Exception {
         CloseableHttpResponse response = client.execute(request);
         try {
             code = response.getStatusLine().getStatusCode();
-            InputStream responseStream = response.getEntity().getContent();
-            responseData = StringUtils.read(responseStream);
+            final HttpEntity entity = response.getEntity();
+            responseData = StringUtils.read(entity.getContent());
+            EntityUtils.consume(entity);
         } finally {
             response.close();
         }