diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPlugin.java b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPlugin.java
index 8445e49e0..f4ba09f72 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPlugin.java
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPlugin.java
@@ -8,9 +8,10 @@ import java.util.Spliterators;
 import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 
-import com.google.gson.Gson;
 import org.apache.commons.lang3.StringUtils;
 
+import com.google.gson.Gson;
+
 import eu.dnetlib.dhp.collection.ApiDescriptor;
 import eu.dnetlib.dhp.collection.plugin.CollectorPlugin;
 import eu.dnetlib.dhp.common.aggregation.AggregatorReport;
@@ -95,7 +96,7 @@ public class RestCollectorPlugin implements CollectorPlugin {
 			authMethod,
 			authToken,
 			resultOutputFormat,
-				requestHeaders);
+			requestHeaders);
 
 		return StreamSupport
 			.stream(
diff --git a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestIterator.java b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestIterator.java
index e51c9eb1b..2518fd92f 100644
--- a/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestIterator.java
+++ b/dhp-workflows/dhp-aggregation/src/main/java/eu/dnetlib/dhp/collection/plugin/rest/RestIterator.java
@@ -25,7 +25,6 @@ import javax.xml.xpath.XPathExpression;
 import javax.xml.xpath.XPathExpressionException;
 import javax.xml.xpath.XPathFactory;
 
-import com.google.common.collect.Maps;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.http.HttpHeaders;
@@ -36,6 +35,8 @@ import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.xml.sax.InputSource;
 
+import com.google.common.collect.Maps;
+
 import eu.dnetlib.dhp.collection.plugin.utils.JsonUtils;
 import eu.dnetlib.dhp.common.collection.CollectorException;
 import eu.dnetlib.dhp.common.collection.HttpClientParams;
@@ -51,7 +52,6 @@ import eu.dnetlib.dhp.common.collection.HttpClientParams;
  */
 public class RestIterator implements Iterator<String> {
 
-
 	private static final Logger log = LoggerFactory.getLogger(RestIterator.class);
 	public static final String UTF_8 = "UTF-8";
 	private static final int MAX_ATTEMPTS = 5;
@@ -93,11 +93,10 @@ public class RestIterator implements Iterator<String> {
 	private final String resultOutputFormat;
 
 	/*
-    Can be used to set additional request headers, like for content negotiation
-     */
+	 * Can be used to set additional request headers, like for content negotiation
+	 */
 	private Map<String, String> requestHeaders;
 
-
 	/**
 	 * RestIterator class compatible to version 1.3.33
 	 */
@@ -245,11 +244,11 @@ public class RestIterator implements Iterator<String> {
 				if (this.authMethod == "bearer") {
 					log.trace("RestIterator.downloadPage():: authMethod before inputStream: " + resultXml);
 					requestHeaders.put("Authorization", "Bearer " + authToken);
-					//requestHeaders.put("Content-Type", "application/json");
+					// requestHeaders.put("Content-Type", "application/json");
 				} else if (AUTHBASIC.equalsIgnoreCase(this.authMethod)) {
 					log.trace("RestIterator.downloadPage():: authMethod before inputStream: " + resultXml);
 					requestHeaders.put("Authorization", "Basic " + authToken);
-					//requestHeaders.put("accept", "application/xml");
+					// requestHeaders.put("accept", "application/xml");
 				}
 				HttpURLConnection conn = (HttpURLConnection) qUrl.openConnection();
 				conn.setRequestMethod("GET");
@@ -386,7 +385,8 @@ public class RestIterator implements Iterator<String> {
 			try {
 				if (this.resultTotal == -1) {
 					this.resultTotal = Integer.parseInt(this.xprResultTotalPath.evaluate(resultNode));
-					if ("page".equalsIgnoreCase(this.resumptionType) && !this.AUTHBASIC.equalsIgnoreCase(this.authMethod)) {
+					if ("page".equalsIgnoreCase(this.resumptionType)
+						&& !this.AUTHBASIC.equalsIgnoreCase(this.authMethod)) {
 						this.resultTotal += 1;
 					} // to correct the upper bound
 					log.info("resultTotal was -1 is now: " + this.resultTotal);
diff --git a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPluginTest.java b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPluginTest.java
index a9fc325c3..99b95d9e3 100644
--- a/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPluginTest.java
+++ b/dhp-workflows/dhp-aggregation/src/test/java/eu/dnetlib/dhp/collection/plugin/rest/RestCollectorPluginTest.java
@@ -13,11 +13,12 @@ import java.util.HashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Stream;
 
-import com.google.gson.Gson;
 import org.junit.jupiter.api.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.gson.Gson;
+
 import eu.dnetlib.dhp.collection.ApiDescriptor;
 import eu.dnetlib.dhp.common.aggregation.AggregatorReport;
 import eu.dnetlib.dhp.common.collection.CollectorException;
@@ -67,7 +68,6 @@ class RestCollectorPluginTest {
 		api.setBaseUrl(baseUrl);
 		api.setParams(params);
 
-
 		rcp = new RestCollectorPlugin(new HttpClientParams());
 	}
 
@@ -100,6 +100,5 @@ class RestCollectorPluginTest {
 		System.out.println(gson.toJson(conn.getHeaderFields()));
 		InputStream inputStream = conn.getInputStream();
 
-
 	}
 }