Handle the new "HttpStatus.MULTI_STATUS"-response from the Controller, inside "AssignmentsHandler.postWorkerReport()".

src/main/java/eu/openaire/urls_worker/util/AssignmentsHandler.java

@@ -136,6 +136,8 @@ public class AssignmentsHandler {
         else
             postWorkerReport(assignmentRequestCounter);
 
+        // The "postWorkerReport()" above, may fail, but the numbers below still stand, as they are affected by the results themselves, rather than the "posting" of them to the Controller.
+
         numHandledAssignmentsBatches ++;    // This is used later to stop this app, if a user-defined upper limit is set and reached.
 
         // Every time we reach a "limit" of handled id-url clear some data-structures of the underlying "PublicationsRetriever" program.
@@ -186,6 +188,10 @@ public class AssignmentsHandler {
             if ( responseCode == HttpStatus.OK.value() ) {
                 logger.info("The submission of the WorkerReport of assignments_" + assignmentRequestCounter + " to the Controller, and the full-text delivering, were successful!");
                 return true;
+            }
+            else if ( responseCode == HttpStatus.MULTI_STATUS.value() ) {
+                logger.warn("The submission of the WorkerReport of assignments_" + assignmentRequestCounter + " to the Controller was successful, but the full-texts' delivering failed!");
+                return true;
             } else {
                 logger.error("HTTP-Connection problem with the submission of the WorkerReport of assignment_" + assignmentRequestCounter + " to the Controller. Error-code was: " + responseCode);
                 return false;