diff --git a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Context.java b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Context.java
index 915974d865..2677d7fd56 100644
--- a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Context.java
+++ b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Context.java
@@ -15,7 +15,6 @@ public class Context extends Qualifier {
 		this.provenance = provenance;
 	}
 
-
 	@Override
 	public int hashCode() {
 		String provenance = new String();
@@ -23,6 +22,4 @@ public class Context extends Qualifier {
 		return Objects.hash(getCode(), getLabel(), provenance);
 	}
 
-
-
 }
diff --git a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Provenance.java b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Provenance.java
index bfd84dfee8..f30e0ea2d4 100644
--- a/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Provenance.java
+++ b/dhp-schemas/src/main/java/eu/dnetlib/dhp/schema/dump/oaf/Provenance.java
@@ -30,7 +30,7 @@ public class Provenance implements Serializable {
 		return p;
 	}
 
-	public String toString(){
+	public String toString() {
 		return provenance + trust;
 	}
 }