Try to use ApacheConnectionClosingStrategy.GracefulClosingStrategy()

Author: namedgraph

src/main/java/com/atomgraph/linkeddatahub/Application.java

@@ -230,6 +230,7 @@
 import org.glassfish.hk2.utilities.binding.AbstractBinder;
 import org.glassfish.jersey.client.ClientConfig;
 import org.glassfish.jersey.apache.connector.ApacheClientProperties;
+import org.glassfish.jersey.apache.connector.ApacheConnectionClosingStrategy;
 import org.glassfish.jersey.apache.connector.ApacheConnectorProvider;
 import org.glassfish.jersey.client.ClientProperties;
 import org.glassfish.jersey.client.RequestEntityProcessing;
@@ -1396,6 +1397,7 @@ public void releaseConnection(final HttpClientConnection managedConn, final Obje
         config.register(new UpdateRequestProvider());
         config.property(ClientProperties.FOLLOW_REDIRECTS, true);
         config.property(ApacheClientProperties.CONNECTION_MANAGER, conman);
+        config.property(ApacheClientProperties.CONNECTION_CLOSING_STRATEGY, new ApacheConnectionClosingStrategy.GracefulClosingStrategy());
         if (keepAliveStrategy != null) config.property(ApacheClientProperties.KEEPALIVE_STRATEGY, keepAliveStrategy);
         //if (buffered)
         config.property(ClientProperties.REQUEST_ENTITY_PROCESSING, RequestEntityProcessing.BUFFERED); // https://stackoverflow.com/questions/42139436/jersey-client-throws-cannot-retry-request-with-a-non-repeatable-request-entity