Fixed core.

Author: khmarbaise

pom.xml

@@ -61,7 +61,7 @@
     <guava.version>17.0</guava.version>
     <json-lib.version>2.4</json-lib.version>
     <httpclient.version>4.5.8</httpclient.version>
-    <httpcore.version>4.5.8</httpcore.version>
+    <httpcore.version>4.4.11</httpcore.version>
     <httpmime.version>4.5.8</httpmime.version>
     <jackson-databind.version>2.9.6</jackson-databind.version>
   </properties>