diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
index ab43c017fb..e77e23c34a 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/gcat/GCatAPIClient.java
@@ -2,6 +2,7 @@
 package eu.dnetlib.dhp.oa.graph.dump.gcat;
 
 import java.io.IOException;
+import java.net.URI;
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
 import java.util.List;
@@ -53,7 +54,9 @@ public class GCatAPIClient {
 	public int publish(final String jsonMetadata) throws IOException, URISyntaxException {
 		try (CloseableHttpClient client = HttpClients.createDefault()) {
 			URIBuilder builder = new URIBuilder(getGcatBaseURL() + itemPath);
-			HttpPost post = new HttpPost(builder.build());
+			URI uri = builder.build();
+			System.out.println(uri.toString());
+			HttpPost post = new HttpPost(uri);
 			post.setHeader("gcube-token", getApplicationToken());
 			post.addHeader("Content-Type", "application/json");
 			post.addHeader("Accept", "application/json");
@@ -62,6 +65,7 @@ public class GCatAPIClient {
 			HttpResponse response = client.execute(post);
 			if (log.isDebugEnabled()) {
 				log.debug(response.getStatusLine());
+				System.out.println(response.getStatusLine());
 				log.debug(IOUtils.toString(response.getEntity().getContent()));
 			}
 			return response.getStatusLine().getStatusCode();
@@ -82,7 +86,9 @@ public class GCatAPIClient {
 			URIBuilder builder = new URIBuilder(getGcatBaseURL() + itemPath)
 				.addParameter("offset", String.valueOf(offset))
 				.addParameter("limit", String.valueOf(limit));
-			HttpGet get = new HttpGet(builder.build());
+			URI uri = builder.build();
+			System.out.println(uri.toString());
+			HttpGet get = new HttpGet(uri);
 			get.setHeader("gcube-token", getApplicationToken());
 			get.addHeader("Content-Type", "application/json");
 			get.addHeader("Accept", "application/json");
@@ -112,7 +118,9 @@ public class GCatAPIClient {
 		try (CloseableHttpClient client = HttpClients.createDefault()) {
 			URIBuilder builder = new URIBuilder(getGcatBaseURL() + itemPath + "/" + resCatName)
 				.addParameter("purge", "true");
-			HttpDelete del = new HttpDelete(builder.build());
+			URI uri = builder.build();
+			System.out.println(uri.toString());
+			HttpDelete del = new HttpDelete(uri);
 			del.setHeader("gcube-token", getApplicationToken());
 			del.addHeader("Content-Type", "application/json");
 			del.addHeader("Accept", "application/json");