refactoring due to compilation

dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/dump/SplitForCommunityTest.java

@@ -4,6 +4,7 @@ package eu.dnetlib.dhp.oa.graph.dump;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
+
 import org.apache.commons.io.FileUtils;
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.JavaRDD;
@@ -16,7 +17,9 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import com.fasterxml.jackson.databind.ObjectMapper;
+
 import eu.dnetlib.dhp.oa.graph.dump.community.CommunitySplit;
 import eu.dnetlib.dhp.schema.dump.oaf.community.CommunityResult;
 

dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/dump/graph/ExtractRelationFromEntityTest.java

@@ -38,7 +38,6 @@ public class ExtractRelationFromEntityTest {
 	private static final Logger log = LoggerFactory
 		.getLogger(ExtractRelationFromEntityTest.class);
 
-
 	@BeforeAll
 	public static void beforeAll() throws IOException {
 		workingDir = Files