diff --git a/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/CuratorController.java b/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/CuratorController.java
index 2860d4c..543c5f7 100644
--- a/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/CuratorController.java
+++ b/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/CuratorController.java
@@ -6,7 +6,6 @@ import eu.dnetlib.dnetrolemanagement.entities.Response;
 import eu.dnetlib.dnetrolemanagement.entities.User;
 import eu.dnetlib.dnetrolemanagement.exception.ConflictException;
 import eu.dnetlib.dnetrolemanagement.exception.ResourceNotFoundException;
-import eu.dnetlib.dnetrolemanagement.exception.UnprocessableException;
 import eu.dnetlib.dnetrolemanagement.services.RegistryService;
 import eu.dnetlib.dnetrolemanagement.utils.AuthoritiesUpdater;
 import eu.dnetlib.dnetrolemanagement.utils.AuthoritiesUtils;
@@ -17,8 +16,6 @@ import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.client.HttpClientErrorException;
 
-import java.util.Collection;
-import java.util.HashSet;
 import java.util.List;
 
 @RestController
diff --git a/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/SuperAdminController.java b/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/SuperAdminController.java
index 08b0fab..a09cc7a 100644
--- a/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/SuperAdminController.java
+++ b/src/main/java/eu/dnetlib/dnetrolemanagement/controllers/SuperAdminController.java
@@ -2,7 +2,6 @@ package eu.dnetlib.dnetrolemanagement.controllers;
 
 import eu.dnetlib.dnetrolemanagement.entities.Response;
 import eu.dnetlib.dnetrolemanagement.exception.ConflictException;
-import eu.dnetlib.dnetrolemanagement.exception.UnprocessableException;
 import eu.dnetlib.dnetrolemanagement.services.RegistryService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
diff --git a/src/main/java/eu/dnetlib/dnetrolemanagement/utils/JsonUtils.java b/src/main/java/eu/dnetlib/dnetrolemanagement/utils/JsonUtils.java
index 4e39e74..1668f36 100644
--- a/src/main/java/eu/dnetlib/dnetrolemanagement/utils/JsonUtils.java
+++ b/src/main/java/eu/dnetlib/dnetrolemanagement/utils/JsonUtils.java
@@ -9,7 +9,6 @@ import eu.dnetlib.dnetrolemanagement.entities.User;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
-import javax.swing.text.html.Option;
 import java.util.Arrays;
 import java.util.Optional;