diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 000000000..f316c9219
Binary files /dev/null and b/.DS_Store differ
diff --git a/dnet-pace-core/.DS_Store b/dnet-pace-core/.DS_Store
new file mode 100644
index 000000000..6d6450171
Binary files /dev/null and b/dnet-pace-core/.DS_Store differ
diff --git a/dnet-pace-core/src/test/java/DedupTestIT.java b/dnet-pace-core/src/test/java/DedupTestIT.java
deleted file mode 100644
index f9f1ed328..000000000
--- a/dnet-pace-core/src/test/java/DedupTestIT.java
+++ /dev/null
@@ -1,4 +0,0 @@
-public class DedupTestIT {
-
-
-}
diff --git a/dnet-pace-core/src/test/java/eu/dnetlib/pace/config/ConfigTest.java b/dnet-pace-core/src/test/java/eu/dnetlib/pace/config/ConfigTest.java
index 5ae030674..d47768b72 100644
--- a/dnet-pace-core/src/test/java/eu/dnetlib/pace/config/ConfigTest.java
+++ b/dnet-pace-core/src/test/java/eu/dnetlib/pace/config/ConfigTest.java
@@ -1,11 +1,6 @@
 package eu.dnetlib.pace.config;
 
-import java.io.IOException;
-
 import eu.dnetlib.pace.AbstractPaceTest;
-import eu.dnetlib.pace.model.MapDocument;
-import eu.dnetlib.pace.model.MapDocumentSerializer;
-import org.apache.commons.io.IOUtils;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;