diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
index da16e6dffe..1c957c9e09 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/DedupRecordFactory.java
@@ -27,15 +27,15 @@ public class DedupRecordFactory {
             .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
 
     public static <T extends OafEntity> Dataset<T> createDedupRecord(
-            final SparkSession spark, final String mergeRelsInputPath, final String entitiesInputPath, final Class<T> clazz, final DedupConfig dedupConf) {
+            final SparkSession spark, final String mergeRelsInputPath, final String entitiesInputPath, final Class<T> clazz) {
 
         long ts = System.currentTimeMillis();
 
         //<id, json_entity>
         Dataset<Tuple2<String, T>> entities = spark.read()
                 .textFile(entitiesInputPath)
-                .map((MapFunction<String, Tuple2<String, T>>) it -> {
-                    T entity = OBJECT_MAPPER.readValue(it, clazz);
+                .map((MapFunction<String, Tuple2<String, T>>) s -> {
+                    T entity = OBJECT_MAPPER.readValue(s, clazz);
                     return new Tuple2<>(entity.getId(), entity);
                 }, Encoders.tuple(Encoders.STRING(), Encoders.kryo(clazz)));
 
diff --git a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkCreateDedupRecord.java b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkCreateDedupRecord.java
index c2b1fc9c24..8e90d2a1ff 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkCreateDedupRecord.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/main/java/eu/dnetlib/dhp/oa/dedup/SparkCreateDedupRecord.java
@@ -10,10 +10,7 @@ import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
 import eu.dnetlib.pace.config.DedupConfig;
 import org.apache.commons.io.IOUtils;
 import org.apache.spark.SparkConf;
-import org.apache.spark.api.java.JavaRDD;
-import org.apache.spark.api.java.JavaSparkContext;
 import org.apache.spark.api.java.function.MapFunction;
-import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoders;
 import org.apache.spark.sql.SaveMode;
 import org.apache.spark.sql.SparkSession;
@@ -70,7 +67,7 @@ public class SparkCreateDedupRecord extends AbstractSparkAction {
 
             Class<OafEntity> clazz = ModelSupport.entityTypes.get(EntityType.valueOf(subEntity));
 
-            DedupRecordFactory.createDedupRecord(spark, mergeRelPath, entityPath, clazz, dedupConf)
+            DedupRecordFactory.createDedupRecord(spark, mergeRelPath, entityPath, clazz)
                     .map((MapFunction<OafEntity, String>) value -> OBJECT_MAPPER.writeValueAsString(value), Encoders.STRING())
                 .write()
                 .mode(SaveMode.Overwrite)
diff --git a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
index bcc5ddeaa6..01cbf04890 100644
--- a/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
+++ b/dhp-workflows/dhp-dedup-openaire/src/test/java/eu/dnetlib/dhp/oa/dedup/SparkDedupTest.java
@@ -95,7 +95,6 @@ public class SparkDedupTest implements Serializable {
                 IOUtils.toString(
                         SparkCreateSimRels.class.getResourceAsStream("/eu/dnetlib/dhp/oa/dedup/createSimRels_parameters.json")));
         parser.parseArgument(new String[]{
-                "-mt", "local[*]",
                 "-i", testGraphBasePath,
                 "-asi", testActionSetId,
                 "-la", "lookupurl",
@@ -120,7 +119,6 @@ public class SparkDedupTest implements Serializable {
                 IOUtils.toString(
                         SparkCreateMergeRels.class.getResourceAsStream("/eu/dnetlib/dhp/oa/dedup/createCC_parameters.json")));
         parser.parseArgument(new String[]{
-                "-mt", "local[*]",
                 "-i", testGraphBasePath,
                 "-asi", testActionSetId,
                 "-la", "lookupurl",
@@ -145,7 +143,6 @@ public class SparkDedupTest implements Serializable {
                 IOUtils.toString(
                         SparkCreateDedupRecord.class.getResourceAsStream("/eu/dnetlib/dhp/oa/dedup/createDedupRecord_parameters.json")));
         parser.parseArgument(new String[]{
-                "-mt", "local[*]",
                 "-i", testGraphBasePath,
                 "-asi", testActionSetId,
                 "-la", "lookupurl",
@@ -170,7 +167,6 @@ public class SparkDedupTest implements Serializable {
                 IOUtils.toString(
                         SparkUpdateEntity.class.getResourceAsStream("/eu/dnetlib/dhp/oa/dedup/updateEntity_parameters.json")));
         parser.parseArgument(new String[]{
-                "-mt", "local[*]",
                 "-i", testGraphBasePath,
                 "-w", testOutputBasePath,
                 "-o", testDedupGraphBasePath
@@ -221,7 +217,6 @@ public class SparkDedupTest implements Serializable {
                 IOUtils.toString(
                         SparkPropagateRelation.class.getResourceAsStream("/eu/dnetlib/dhp/oa/dedup/propagateRelation_parameters.json")));
         parser.parseArgument(new String[]{
-                "-mt", "local[*]",
                 "-i", testGraphBasePath,
                 "-w", testOutputBasePath,
                 "-o", testDedupGraphBasePath