diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/GraphHiveImporterJob.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/GraphHiveImporterJob.java
index d0fe95289..bec3810f9 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/GraphHiveImporterJob.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/GraphHiveImporterJob.java
@@ -19,6 +19,8 @@ public class GraphHiveImporterJob {
 
     private static final Logger log = LoggerFactory.getLogger(GraphHiveImporterJob.class);
 
+    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+
     public static void main(String[] args) throws Exception {
 
         final ArgumentApplicationParser parser =
@@ -37,12 +39,12 @@ public class GraphHiveImporterJob {
         String inputPath = parser.get("inputPath");
         log.info("inputPath: {}", inputPath);
 
-        String hiveMetastoreUris = parser.get("hiveMetastoreUris");
-        log.info("hiveMetastoreUris: {}", hiveMetastoreUris);
-
         String hiveDbName = parser.get("hiveDbName");
         log.info("hiveDbName: {}", hiveDbName);
 
+        String hiveMetastoreUris = parser.get("hiveMetastoreUris");
+        log.info("hiveMetastoreUris: {}", hiveMetastoreUris);
+
         SparkConf conf = new SparkConf();
         conf.set("hive.metastore.uris", hiveMetastoreUris);
 
@@ -58,13 +60,13 @@ public class GraphHiveImporterJob {
         spark.sql(String.format("DROP DATABASE IF EXISTS %s CASCADE", hiveDbName));
         spark.sql(String.format("CREATE DATABASE IF NOT EXISTS %s", hiveDbName));
 
-        final JavaSparkContext sc = new JavaSparkContext(spark.sparkContext());
+        final JavaSparkContext sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
         // Read the input file and convert it into RDD of serializable object
         ModelSupport.oafTypes.forEach(
                 (name, clazz) ->
                         spark.createDataset(
                                         sc.textFile(inputPath + "/" + name)
-                                                .map(s -> new ObjectMapper().readValue(s, clazz))
+                                                .map(s -> OBJECT_MAPPER.readValue(s, clazz))
                                                 .rdd(),
                                         Encoders.bean(clazz))
                                 .write()
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/config-default.xml b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/config-default.xml
index 8d8766283..2c9a92d7a 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/config-default.xml
+++ b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/config-default.xml
@@ -12,11 +12,7 @@
         <value>true</value>
     </property>
     <property>
-        <name>oozie.action.sharelib.for.spark</name>
-        <value>spark2</value>
-    </property>
-    <property>
-        <name>hive_metastore_uris</name>
+        <name>hiveMetastoreUris</name>
         <value>thrift://iis-cdh5-test-m3.ocean.icm.edu.pl:9083</value>
     </property>
     <property>
@@ -24,7 +20,7 @@
         <value>jdbc:hive2://iis-cdh5-test-m3.ocean.icm.edu.pl:10000</value>
     </property>
     <property>
-        <name>hive_db_name</name>
+        <name>hiveDbName</name>
         <value>openaire</value>
     </property>
 </configuration>
\ No newline at end of file
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/workflow.xml b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/workflow.xml
index 67ca6a64a..4e9e95c83 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/hive/oozie_app/workflow.xml
@@ -2,11 +2,11 @@
 
     <parameters>
         <property>
-            <name>sourcePath</name>
+            <name>inputPath</name>
             <description>the source path</description>
         </property>
         <property>
-            <name>hive_db_name</name>
+            <name>hiveDbName</name>
             <description>the target hive database name</description>
         </property>
         <property>
@@ -87,9 +87,9 @@
                 --conf spark.eventLog.dir=${nameNode}${spark2EventLogDir}
                 --conf spark.sql.warehouse.dir=${sparkSqlWarehouseDir}
             </spark-opts>
-            <arg>--sourcePath</arg><arg>${sourcePath}</arg>
-            <arg>--hive_db_name</arg><arg>${hive_db_name}</arg>
-            <arg>--hive_metastore_uris</arg><arg>${hive_metastore_uris}</arg>
+            <arg>--inputPath</arg><arg>${inputPath}</arg>
+            <arg>--hiveDbName</arg><arg>${hiveDbName}</arg>
+            <arg>--hiveMetastoreUris</arg><arg>${hiveMetastoreUris}</arg>
         </spark>
         <ok to="PostProcessing"/>
         <error to="Kill"/>
@@ -102,7 +102,7 @@
             <configuration>
                 <property>
                     <name>hive.metastore.uris</name>
-                    <value>${hive_metastore_uris}</value>
+                    <value>${hiveMetastoreUris}</value>
                 </property>
             </configuration>
             <jdbc-url>${hive_jdbc_url}/${hive_db_name}</jdbc-url>