diff --git a/dhp-common/src/test/java/eu/dnetlib/dhp/application/ArgumentApplicationParserTest.java b/dhp-common/src/test/java/eu/dnetlib/dhp/application/ArgumentApplicationParserTest.java
index 19d3f76bd..f4598ebd4 100644
--- a/dhp-common/src/test/java/eu/dnetlib/dhp/application/ArgumentApplicationParserTest.java
+++ b/dhp-common/src/test/java/eu/dnetlib/dhp/application/ArgumentApplicationParserTest.java
@@ -3,16 +3,11 @@ package eu.dnetlib.dhp.application;
 import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Test;
 
-import java.io.ByteArrayOutputStream;
-import java.util.Base64;
-import java.util.zip.GZIPOutputStream;
-
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 public class ArgumentApplicationParserTest {
 
-
     @Test
     public void testParseParameter() throws Exception {
         final String jsonConfiguration = IOUtils.toString(this.getClass().getResourceAsStream("/eu/dnetlib/application/parameters.json"));
diff --git a/dhp-common/src/test/java/eu/dnetlib/dhp/model/mdstore/MetadataRecordTest.java b/dhp-common/src/test/java/eu/dnetlib/dhp/model/mdstore/MetadataRecordTest.java
index 50ff0f16b..a2bac54ba 100644
--- a/dhp-common/src/test/java/eu/dnetlib/dhp/model/mdstore/MetadataRecordTest.java
+++ b/dhp-common/src/test/java/eu/dnetlib/dhp/model/mdstore/MetadataRecordTest.java
@@ -10,6 +10,6 @@ public class MetadataRecordTest {
     public void getTimestamp() {
 
         MetadataRecord r = new MetadataRecord();
-        assertTrue(r.getDateOfCollection() >0);
+        assertTrue(r.getDateOfCollection() > 0);
     }
 }
\ No newline at end of file