using actual result subclasses instead of their parent class

dhp-workflows/dhp-enrichment/src/main/java/eu/dnetlib/dhp/resulttocommunityfromorganization/SparkResultToCommunityFromOrganizationJob.java

@@ -108,7 +108,7 @@ public class SparkResultToCommunityFromOrganizationJob {
 					.stream()
 					.map(con -> con.getId())
 					.collect(Collectors.toList());
-				Result res = new Result();
+				R res = (R) ret.getClass().newInstance();
 				res.setId(ret.getId());
 				List<Context> propagatedContexts = new ArrayList<>();
 				for (String cId : communitySet) {

dhp-workflows/dhp-enrichment/src/main/java/eu/dnetlib/dhp/resulttocommunityfromsemrel/SparkResultToCommunityThroughSemRelJob.java

@@ -130,7 +130,7 @@ public class SparkResultToCommunityThroughSemRelJob {
 						})
 					.filter(Objects::nonNull)
 					.collect(Collectors.toList());
-				Result r = new Result();
+				R r = (R) ret.getClass().newInstance();
 				r.setId(ret.getId());
 				r.setContext(contextList);
 				ret.mergeFrom(r);