diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFOSSparkJob.java b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFOSSparkJob.java
index c98f1b05a..0cc2f93df 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFOSSparkJob.java
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFOSSparkJob.java
@@ -9,7 +9,6 @@ import java.io.Serializable;
 import java.util.Optional;
 
 import org.apache.commons.io.IOUtils;
-
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.sql.*;
diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java
index b25da07e0..9b444c6fa 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/actionmanager/usagestats/SparkAtomicActionUsageJob.java
@@ -83,9 +83,12 @@ public class SparkAtomicActionUsageJob implements Serializable {
 	private static void prepareData(String dbname, SparkSession spark, String workingPath, String tableName,
 		String attribute_name) {
 		spark
-			.sql(String.format(
-					"select %s as id, sum(downloads) as downloads, sum(views) as views " +
-					"from %s.%s group by %s", attribute_name, dbname, tableName, attribute_name))
+			.sql(
+				String
+					.format(
+						"select %s as id, sum(downloads) as downloads, sum(views) as views " +
+							"from %s.%s group by %s",
+						attribute_name, dbname, tableName, attribute_name))
 			.as(Encoders.bean(UsageStatsModel.class))
 			.write()
 			.mode(SaveMode.Overwrite)
diff --git a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFosTest.java b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFosTest.java
index 9a74ae07e..7e0acc2bb 100644
--- a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFosTest.java
+++ b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/actionmanager/createunresolvedentities/GetFosTest.java
@@ -1,7 +1,10 @@
+
 package eu.dnetlib.dhp.actionmanager.createunresolvedentities;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-import eu.dnetlib.dhp.actionmanager.createunresolvedentities.model.FOSDataModel;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
 import org.apache.commons.io.FileUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
@@ -17,9 +20,9 @@ import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import eu.dnetlib.dhp.actionmanager.createunresolvedentities.model.FOSDataModel;
 
 /**
  * @author miriam.baglioni
@@ -27,48 +30,48 @@ import java.nio.file.Path;
  */
 public class GetFosTest {
 
-    private static final Logger log = LoggerFactory.getLogger(ProduceTest.class);
+	private static final Logger log = LoggerFactory.getLogger(ProduceTest.class);
 
-    private static Path workingDir;
-    private static SparkSession spark;
-    private static LocalFileSystem fs;
-    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
+	private static Path workingDir;
+	private static SparkSession spark;
+	private static LocalFileSystem fs;
+	private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
 
-    @BeforeAll
-    public static void beforeAll() throws IOException {
-        workingDir = Files.createTempDirectory(PrepareTest.class.getSimpleName());
+	@BeforeAll
+	public static void beforeAll() throws IOException {
+		workingDir = Files.createTempDirectory(PrepareTest.class.getSimpleName());
 
-        fs = FileSystem.getLocal(new Configuration());
-        log.info("using work dir {}", workingDir);
+		fs = FileSystem.getLocal(new Configuration());
+		log.info("using work dir {}", workingDir);
 
-        SparkConf conf = new SparkConf();
-        conf.setAppName(ProduceTest.class.getSimpleName());
+		SparkConf conf = new SparkConf();
+		conf.setAppName(ProduceTest.class.getSimpleName());
 
-        conf.setMaster("local[*]");
-        conf.set("spark.driver.host", "localhost");
-        conf.set("hive.metastore.local", "true");
-        conf.set("spark.ui.enabled", "false");
-        conf.set("spark.sql.warehouse.dir", workingDir.toString());
-        conf.set("hive.metastore.warehouse.dir", workingDir.resolve("warehouse").toString());
+		conf.setMaster("local[*]");
+		conf.set("spark.driver.host", "localhost");
+		conf.set("hive.metastore.local", "true");
+		conf.set("spark.ui.enabled", "false");
+		conf.set("spark.sql.warehouse.dir", workingDir.toString());
+		conf.set("hive.metastore.warehouse.dir", workingDir.resolve("warehouse").toString());
 
-        spark = SparkSession
-                .builder()
-                .appName(PrepareTest.class.getSimpleName())
-                .config(conf)
-                .getOrCreate();
-    }
+		spark = SparkSession
+			.builder()
+			.appName(PrepareTest.class.getSimpleName())
+			.config(conf)
+			.getOrCreate();
+	}
 
-    @AfterAll
-    public static void afterAll() throws IOException {
-        FileUtils.deleteDirectory(workingDir.toFile());
-        spark.stop();
-    }
-    	@Test
+	@AfterAll
+	public static void afterAll() throws IOException {
+		FileUtils.deleteDirectory(workingDir.toFile());
+		spark.stop();
+	}
+
+	@Test
 	void test3() throws Exception {
-            final String sourcePath = getClass()
-                    .getResource("/eu/dnetlib/dhp/actionmanager/createunresolvedentities/fos/fos_sbs.tsv")
-                    .getPath();
-
+		final String sourcePath = getClass()
+			.getResource("/eu/dnetlib/dhp/actionmanager/createunresolvedentities/fos/fos_sbs.tsv")
+			.getPath();
 
 		final String outputPath = workingDir.toString() + "/fos.json";
 		GetFOSSparkJob
diff --git a/dhp-workflows/dhp-graph-provision/src/test/java/eu/dnetlib/dhp/oa/provision/SolrConfigTest.java b/dhp-workflows/dhp-graph-provision/src/test/java/eu/dnetlib/dhp/oa/provision/SolrConfigTest.java
index 451e29128..a9d885ecf 100644
--- a/dhp-workflows/dhp-graph-provision/src/test/java/eu/dnetlib/dhp/oa/provision/SolrConfigTest.java
+++ b/dhp-workflows/dhp-graph-provision/src/test/java/eu/dnetlib/dhp/oa/provision/SolrConfigTest.java
@@ -115,9 +115,8 @@ public class SolrConfigTest extends SolrTest {
 			for (SolrDocument doc : rsp.getResults()) {
 				System.out
 					.println(
-							doc.get("__indexrecordidentifier") + "\t" +
-							doc.get("__result") + "\t"
-					);
+						doc.get("__indexrecordidentifier") + "\t" +
+							doc.get("__result") + "\t");
 			}
 		}
 	}