adapt to jtango 9.6.8

pom.xml

@@ -11,7 +11,7 @@
 
   <groupId>fr.soleil.lib</groupId>
   <artifactId>hdbtdbArchivingApi</artifactId>
-  <version>2.5.15</version>
+  <version>2.5.16</version>
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

src/main/java/fr/soleil/archiving/hdbtdb/api/manager/ArchivingManagerApiRef.java

@@ -37,7 +37,6 @@ import org.tango.utils.DevFailedUtils;
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Enumeration;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -565,9 +564,7 @@ public abstract class ArchivingManagerApiRef implements IArchivingManagerApiRef
                 Group group = new Group("");
                 group.add(devicesList);
                 GroupAttrReplyList result = group.read_attribute("state", false);
-                Enumeration<?> elements = result.elements();
-                while (elements.hasMoreElements()) {
-                    GroupAttrReply reply = (GroupAttrReply) elements.nextElement();
+                for (GroupAttrReply reply : result) {
                     try {
                         reply.get_data().extractDevState();
                         runningDevicesListVector