diff --git a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateEventsApplication.java b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateEventsApplication.java
index ae72e83ce8..0673e7810b 100644
--- a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateEventsApplication.java
+++ b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateEventsApplication.java
@@ -28,8 +28,11 @@ import eu.dnetlib.dhp.broker.oa.util.EventGroup;
 import eu.dnetlib.dhp.broker.oa.util.aggregators.simple.ResultAggregator;
 import eu.dnetlib.dhp.broker.oa.util.aggregators.simple.ResultGroup;
 import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.OpenaireBrokerResultAggregator;
+import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedDataset;
 import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedEntityFactory;
 import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedProject;
+import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedPublication;
+import eu.dnetlib.dhp.broker.oa.util.aggregators.withRels.RelatedSoftware;
 import eu.dnetlib.dhp.common.HdfsSupport;
 import eu.dnetlib.dhp.schema.oaf.Project;
 import eu.dnetlib.dhp.schema.oaf.Publication;
@@ -74,8 +77,8 @@ public class GenerateEventsApplication {
 		log.info("dedupConfigProfileId: {}", dedupConfigProfileId);
 
 		final SparkConf conf = new SparkConf();
-		conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer");
-		conf.registerKryoClasses(BrokerConstants.getModelClasses());
+		// conf.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer");
+		// conf.registerKryoClasses(BrokerConstants.getModelClasses());
 
 		// TODO UNCOMMENT
 		// final DedupConfig dedupConfig = loadDedupConfig(isLookupUrl, dedupConfigProfileId);
@@ -85,17 +88,24 @@ public class GenerateEventsApplication {
 
 			removeOutputDir(spark, eventsPath);
 
-			// TODO UNCOMMENT
-			spark
-				.emptyDataset(Encoders.kryo(Event.class))
-				.union(generateEvents(spark, graphPath, Publication.class, dedupConfig))
-				// .union(generateEvents(spark, graphPath, eu.dnetlib.dhp.schema.oaf.Dataset.class, dedupConfig))
-				// .union(generateEvents(spark, graphPath, Software.class, dedupConfig))
-				// .union(generateEvents(spark, graphPath, OtherResearchProduct.class, dedupConfig))
+			// TODO REMOVE THIS
+			expandResultsWithRelations(spark, graphPath, Publication.class)
 				.write()
 				.mode(SaveMode.Overwrite)
 				.option("compression", "gzip")
 				.json(eventsPath);
+
+			// TODO UNCOMMENT THIS
+			// spark
+			// .emptyDataset(Encoders.bean(Event.class))
+			// .union(generateEvents(spark, graphPath, Publication.class, dedupConfig))
+			// .union(generateEvents(spark, graphPath, eu.dnetlib.dhp.schema.oaf.Dataset.class, dedupConfig))
+			// .union(generateEvents(spark, graphPath, Software.class, dedupConfig))
+			// .union(generateEvents(spark, graphPath, OtherResearchProduct.class, dedupConfig))
+			// .write()
+			// .mode(SaveMode.Overwrite)
+			// .option("compression", "gzip")
+			// .json(eventsPath);
 		});
 
 	}
@@ -123,12 +133,12 @@ public class GenerateEventsApplication {
 			.groupByKey(
 				(MapFunction<Tuple2<OpenaireBrokerResult, Relation>, String>) t -> t._2.getTarget(), Encoders.STRING())
 			.agg(aggr)
-			.map((MapFunction<Tuple2<String, ResultGroup>, ResultGroup>) t -> t._2, Encoders.kryo(ResultGroup.class))
+			.map((MapFunction<Tuple2<String, ResultGroup>, ResultGroup>) t -> t._2, Encoders.bean(ResultGroup.class))
 			.filter(ResultGroup::isValid)
 			.map(
 				(MapFunction<ResultGroup, EventGroup>) g -> EventFinder.generateEvents(g, dedupConfig),
-				Encoders.kryo(EventGroup.class))
-			.flatMap(group -> group.getData().iterator(), Encoders.kryo(Event.class));
+				Encoders.bean(EventGroup.class))
+			.flatMap(group -> group.getData().iterator(), Encoders.bean(Event.class));
 	}
 
 	private static <SRC extends Result> Dataset<OpenaireBrokerResult> expandResultsWithRelations(
@@ -147,15 +157,16 @@ public class GenerateEventsApplication {
 			.cache();
 
 		final Dataset<OpenaireBrokerResult> r0 = readPath(
-			spark, graphPath + "/" + sourceClass.getSimpleName().toLowerCase(), Result.class)
+			spark, graphPath + "/" + sourceClass.getSimpleName().toLowerCase(), sourceClass)
 				.filter(r -> r.getDataInfo().getDeletedbyinference())
-				.map(ConversionUtils::oafResultToBrokerResult, Encoders.kryo(OpenaireBrokerResult.class));
+				.map(ConversionUtils::oafResultToBrokerResult, Encoders.bean(OpenaireBrokerResult.class));
 
 		final Dataset<OpenaireBrokerResult> r1 = join(r0, rels, relatedEntities(projects, rels, RelatedProject.class));
-		final Dataset<OpenaireBrokerResult> r2 = join(r1, rels, relatedEntities(softwares, rels, RelatedProject.class));
-		final Dataset<OpenaireBrokerResult> r3 = join(r2, rels, relatedEntities(datasets, rels, RelatedProject.class));
+		final Dataset<OpenaireBrokerResult> r2 = join(
+			r1, rels, relatedEntities(softwares, rels, RelatedSoftware.class));
+		final Dataset<OpenaireBrokerResult> r3 = join(r2, rels, relatedEntities(datasets, rels, RelatedDataset.class));
 		final Dataset<OpenaireBrokerResult> r4 = join(
-			r3, rels, relatedEntities(publications, rels, RelatedProject.class));
+			r3, rels, relatedEntities(publications, rels, RelatedPublication.class));
 		;
 
 		return r4;
@@ -168,7 +179,7 @@ public class GenerateEventsApplication {
 			.joinWith(targets, targets.col("id").equalTo(rels.col("target")), "inner")
 			.map(
 				t -> RelatedEntityFactory.newRelatedEntity(t._1.getSource(), t._1.getRelType(), t._2, clazz),
-				Encoders.kryo(clazz));
+				Encoders.bean(clazz));
 	}
 
 	private static <T> Dataset<OpenaireBrokerResult> join(final Dataset<OpenaireBrokerResult> sources,
@@ -184,7 +195,7 @@ public class GenerateEventsApplication {
 			.groupByKey(
 				(MapFunction<Tuple2<OpenaireBrokerResult, T>, String>) t -> t._1.getOpenaireId(), Encoders.STRING())
 			.agg(aggr)
-			.map(t -> t._2, Encoders.kryo(OpenaireBrokerResult.class));
+			.map(t -> t._2, Encoders.bean(OpenaireBrokerResult.class));
 
 	}
 
diff --git a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/simple/ResultAggregator.java b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/simple/ResultAggregator.java
index dabe2bb4d6..7474821989 100644
--- a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/simple/ResultAggregator.java
+++ b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/simple/ResultAggregator.java
@@ -38,13 +38,13 @@ public class ResultAggregator extends Aggregator<Tuple2<OpenaireBrokerResult, Re
 
 	@Override
 	public Encoder<ResultGroup> bufferEncoder() {
-		return Encoders.kryo(ResultGroup.class);
+		return Encoders.bean(ResultGroup.class);
 
 	}
 
 	@Override
 	public Encoder<ResultGroup> outputEncoder() {
-		return Encoders.kryo(ResultGroup.class);
+		return Encoders.bean(ResultGroup.class);
 
 	}
 
diff --git a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/withRels/OpenaireBrokerResultAggregator.java b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/withRels/OpenaireBrokerResultAggregator.java
index b44fbe367c..e72dcb9880 100644
--- a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/withRels/OpenaireBrokerResultAggregator.java
+++ b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/util/aggregators/withRels/OpenaireBrokerResultAggregator.java
@@ -58,12 +58,12 @@ public class OpenaireBrokerResultAggregator<T>
 
 	@Override
 	public Encoder<OpenaireBrokerResult> bufferEncoder() {
-		return Encoders.kryo(OpenaireBrokerResult.class);
+		return Encoders.bean(OpenaireBrokerResult.class);
 	}
 
 	@Override
 	public Encoder<OpenaireBrokerResult> outputEncoder() {
-		return Encoders.kryo(OpenaireBrokerResult.class);
+		return Encoders.bean(OpenaireBrokerResult.class);
 	}
 
 }