From 315267e68cf7fe35db1e2041978b3c0498a56d52 Mon Sep 17 00:00:00 2001
From: Paulo Veiga <pveiga@wisemapping.com>
Date: Mon, 30 Oct 2023 05:34:45 +0000
Subject: [PATCH] Migrate to hibernate 6

---
 wise-webapp/pom.xml                           |  49 ++----
 .../com/wisemapping/dao/LabelManagerImpl.java |  36 ++--
 .../com/wisemapping/dao/MindmapManager.java   |   6 -
 .../wisemapping/dao/MindmapManagerImpl.java   | 157 +++++++-----------
 .../com/wisemapping/dao/UserManagerImpl.java  |  69 ++++----
 .../wisemapping/service/MindmapService.java   |   2 -
 .../service/MindmapServiceImpl.java           |   5 -
 .../main/webapp/WEB-INF/wisemapping-dao.xml   |   4 -
 .../main/webapp/WEB-INF/wisemapping-model.xml |   9 +-
 9 files changed, 131 insertions(+), 206 deletions(-)

diff --git a/wise-webapp/pom.xml b/wise-webapp/pom.xml
index 8f40c583..26ff41f8 100644
--- a/wise-webapp/pom.xml
+++ b/wise-webapp/pom.xml
@@ -13,10 +13,8 @@
     </parent>
 
     <properties>
-        <org.springframework.version>6.0.11</org.springframework.version>
+        <org.springframework.version>6.0.13</org.springframework.version>
         <org.springframework.addons>6.1.2</org.springframework.addons>
-        <hibernate.version>6.2.6.Final</hibernate.version>
-        <hibernate-validator.version>6.0.21.Final</hibernate-validator.version>
         <spring-security-taglibs.version>6.0.2</spring-security-taglibs.version>
     </properties>
 
@@ -86,8 +84,14 @@
         <!-- Hibernate -->
         <dependency>
             <groupId>org.hibernate</groupId>
-            <artifactId>hibernate-core-jakarta</artifactId>
-            <version>5.6.15.Final</version>
+            <artifactId>hibernate-core</artifactId>
+            <version>6.1.7.Final</version>
+        </dependency>
+
+        <dependency>
+            <groupId>jakarta.xml.bind</groupId>
+            <artifactId>jakarta.xml.bind-api</artifactId>
+            <version>4.0.1</version>
         </dependency>
 
         <!-- Hibernate Validator -->
@@ -130,12 +134,12 @@
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-jpa</artifactId>
-            <version>2.6.1</version>
+            <version>3.1.0</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-            <version>5.3.15</version>
+            <version>6.0.6</version>
             <scope>test</scope>
         </dependency>
 
@@ -189,16 +193,6 @@
             <artifactId>jakarta.mail</artifactId>
             <version>2.0.2</version>
         </dependency>
-<!--        <dependency>-->
-<!--            <groupId>org.hibernate</groupId>-->
-<!--            <artifactId>hibernate-ehcache</artifactId>-->
-<!--            <version>5.6.15.Final</version>-->
-<!--        </dependency>-->
-<!--        <dependency>-->
-<!--            <groupId>javax.cache</groupId>-->
-<!--            <artifactId>cache-api</artifactId>-->
-<!--            <version>1.1.1</version>-->
-<!--        </dependency>-->
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
@@ -362,27 +356,6 @@
     </profiles>
     <build>
         <plugins>
-<!--            <plugin>-->
-<!--                <groupId>org.hibernate.orm.tooling</groupId>-->
-<!--                <artifactId>hibernate-enhance-maven-plugin</artifactId>-->
-<!--                <version>${hibernate.version}</version>-->
-<!--                <executions>-->
-<!--                    <execution>-->
-<!--                        <phase>compile</phase>-->
-<!--                        <configuration>-->
-<!--                            <failOnError>true</failOnError>-->
-<!--                            <enableLazyInitialization>true</enableLazyInitialization>-->
-<!--                            <enableDirtyTracking>true</enableDirtyTracking>-->
-<!--                            <enableAssociationManagement>true</enableAssociationManagement>-->
-<!--                            <enableExtendedEnhancement>false</enableExtendedEnhancement>-->
-<!--                            <enableExtendedEnhancement>false</enableExtendedEnhancement>-->
-<!--                        </configuration>-->
-<!--                        <goals>-->
-<!--                            <goal>enhance</goal>-->
-<!--                        </goals>-->
-<!--                    </execution>-->
-<!--                </executions>-->
-<!--            </plugin>-->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-war-plugin</artifactId>
diff --git a/wise-webapp/src/main/java/com/wisemapping/dao/LabelManagerImpl.java b/wise-webapp/src/main/java/com/wisemapping/dao/LabelManagerImpl.java
index b9bd4f64..01012bc8 100644
--- a/wise-webapp/src/main/java/com/wisemapping/dao/LabelManagerImpl.java
+++ b/wise-webapp/src/main/java/com/wisemapping/dao/LabelManagerImpl.java
@@ -19,14 +19,21 @@ package com.wisemapping.dao;
 
 import com.wisemapping.model.Label;
 import com.wisemapping.model.User;
+import jakarta.annotation.Resource;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.query.SelectionQuery;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.springframework.orm.hibernate5.support.HibernateDaoSupport;
+import org.springframework.stereotype.Repository;
 
 import java.util.List;
 
-public class LabelManagerImpl extends HibernateDaoSupport
+@Repository
+public class LabelManagerImpl
         implements LabelManager {
+    @Resource
+    private SessionFactory sessionFactory;
 
     @Override
     public void addLabel(@NotNull final Label label) {
@@ -35,31 +42,37 @@ public class LabelManagerImpl extends HibernateDaoSupport
 
     @Override
     public void saveLabel(@NotNull final Label label) {
-        currentSession().save(label);
+        getSession().persist(label);
+    }
+
+    private Session getSession() {
+        return sessionFactory.getCurrentSession();
     }
 
     @NotNull
     @Override
-    @SuppressWarnings("unchecked")
     public List<Label> getAllLabels(@NotNull final User user) {
-        var query = currentSession().createQuery("from com.wisemapping.model.Label wisemapping where creator_id=:creatorId");
-        query.setParameter("creatorId", user.getId());
+        final SelectionQuery<Label> query = getSession().createSelectionQuery("from com.wisemapping.model.Label wisemapping where creator=:creatorId", Label.class);
+        query.setParameter("creatorId", user);
         return query.list();
     }
 
     @Nullable
     @Override
     public Label getLabelById(int id, @NotNull final User user) {
-        var query = currentSession().createQuery("from com.wisemapping.model.Label wisemapping where id=:id and creator=:creator");
+        final Session session = getSession();
+        final SelectionQuery<Label> query = session.createSelectionQuery("from com.wisemapping.model.Label wisemapping where id=:id and creator=:creator", Label.class);
         query.setParameter("id", id);
         query.setParameter("creator", user);
-        return getFirst(query.list());
+
+        final List<Label> resultList = query.getResultList();
+        return getFirst(resultList);
     }
 
     @Nullable
     @Override
     public Label getLabelByTitle(@NotNull String title, @NotNull final User user) {
-        var query = currentSession().createQuery("from com.wisemapping.model.Label wisemapping where title=:title and creator=:creator");
+        final SelectionQuery<Label> query = getSession().createSelectionQuery("from com.wisemapping.model.Label wisemapping where title=:title and creator=:creator", Label.class);
         query.setParameter("title", title);
         query.setParameter("creator", user);
         return getFirst(query.list());
@@ -67,10 +80,11 @@ public class LabelManagerImpl extends HibernateDaoSupport
 
     @Override
     public void removeLabel(@NotNull Label label) {
-        getHibernateTemplate().delete(label);
+        getSession().remove(label);
     }
 
-    @Nullable private Label getFirst(List<Label> labels) {
+    @Nullable
+    private Label getFirst(final List<Label> labels) {
         Label result = null;
         if (labels != null && !labels.isEmpty()) {
             result = labels.get(0);
diff --git a/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManager.java b/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManager.java
index 2d0b298d..3bff94cc 100644
--- a/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManager.java
+++ b/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManager.java
@@ -50,17 +50,11 @@ public interface MindmapManager {
 
     void removeCollaboration(Collaboration collaboration);
 
-    List<Mindmap> search(MindMapCriteria criteria);
-
-    List<Mindmap> search(MindMapCriteria criteria, int maxResult);
-
     List<MindMapHistory> getHistoryFrom(int mindmapId);
 
     MindMapHistory getHistory(int historyId);
 
     void updateCollaboration(@NotNull Collaboration collaboration);
 
-    void purgeHistory(int mapId) throws IOException;
-
     List<Mindmap> findMindmapByUser(User user);
 }
diff --git a/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManagerImpl.java b/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManagerImpl.java
index 1d8a5f8a..646d403e 100644
--- a/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManagerImpl.java
+++ b/wise-webapp/src/main/java/com/wisemapping/dao/MindmapManagerImpl.java
@@ -19,30 +19,31 @@
 package com.wisemapping.dao;
 
 import com.wisemapping.model.*;
-import com.wisemapping.util.ZipUtils;
-import jakarta.persistence.Query;
-import org.hibernate.Criteria;
-import org.hibernate.criterion.Junction;
-import org.hibernate.criterion.Order;
-import org.hibernate.criterion.Restrictions;
-import org.hibernate.criterion.SimpleExpression;
+import jakarta.annotation.Resource;
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.CriteriaDelete;
+import jakarta.persistence.criteria.CriteriaQuery;
+import jakarta.persistence.criteria.Root;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.query.SelectionQuery;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.springframework.orm.hibernate5.HibernateTemplate;
-import org.springframework.orm.hibernate5.support.HibernateDaoSupport;
+import org.springframework.stereotype.Repository;
 
-import java.io.IOException;
 import java.util.Calendar;
 import java.util.List;
 
+@Repository
 public class MindmapManagerImpl
-        extends HibernateDaoSupport
         implements MindmapManager {
+    @Resource
+    private SessionFactory sessionFactory;
 
     @Override
     public Collaborator findCollaborator(@NotNull final String email) {
         final Collaborator collaborator;
-        Query query = currentSession().createQuery("from com.wisemapping.model.Collaborator collaborator where email=:email");
+        final SelectionQuery<Collaborator> query = getSession().createSelectionQuery("from com.wisemapping.model.Collaborator collaborator where email=:email", Collaborator.class);
         query.setParameter("email", email);
 
         final List<Collaborator> collaborators = query.getResultList();
@@ -55,137 +56,87 @@ public class MindmapManagerImpl
         return collaborator;
     }
 
-    @Override
-    public List<Mindmap> search(MindMapCriteria criteria) {
-        return search(criteria, -1);
+    private Session getSession() {
+        return sessionFactory.getCurrentSession();
     }
 
     @Override
     public List<MindMapHistory> getHistoryFrom(int mindmapId) {
-        final Criteria hibernateCriteria = currentSession().createCriteria(MindMapHistory.class);
-        hibernateCriteria.add(Restrictions.eq("mindmapId", mindmapId));
-        hibernateCriteria.addOrder(Order.desc("creationTime"));
+        final Session session = getSession();
+        final CriteriaBuilder cb = session.getCriteriaBuilder();
 
-        // This line throws errors in some environments, so getting all history and taking firsts 10 records
-        hibernateCriteria.setMaxResults(30);
-        return hibernateCriteria.list();
+        final CriteriaQuery<MindMapHistory> cr = cb.createQuery(MindMapHistory.class);
+        final Root<MindMapHistory> root = cr.from(MindMapHistory.class);
+
+        final CriteriaQuery<MindMapHistory> select = cr.select(root)
+                .where(cb.equal(root.get("mindmapId"), mindmapId))
+                .orderBy(cb.desc(root.get("creationTime")));
+
+        return session.
+                createQuery(select)
+                .setMaxResults(30)
+                .getResultList();
     }
 
     @Override
     public MindMapHistory getHistory(int historyId) {
-        return getHibernateTemplate().get(MindMapHistory.class, historyId);
+        final Session session = getSession();
+        return session.find(MindMapHistory.class, historyId);
     }
 
     @Override
     public void updateCollaboration(@NotNull Collaboration collaboration) {
-        getHibernateTemplate().save(collaboration);
-    }
-
-    @Override
-    public void purgeHistory(int mapId) throws IOException {
-        final Criteria hibernateCriteria = currentSession().createCriteria(MindMapHistory.class);
-        hibernateCriteria.add(Restrictions.eq("mindmapId", mapId));
-        hibernateCriteria.addOrder(Order.desc("creationTime"));
-
-        final List<MindMapHistory> historyList = hibernateCriteria.list();
-
-        final Mindmap mindmap = this.getMindmapById(mapId);
-        if (mindmap != null) {
-            final Calendar yearAgo = Calendar.getInstance();
-            yearAgo.add(Calendar.MONTH, -12);
-
-            // If the map has not been modified in the last months, it means that I don't need to keep all the history ...
-            int max = mindmap.getLastModificationTime().before(yearAgo) ? 10 : 25;
-
-            final HibernateTemplate hibernateTemplate = getHibernateTemplate();
-            for (MindMapHistory history : historyList) {
-                byte[] zippedXml = history.getZippedXml();
-                if (new String(zippedXml).startsWith("<map")) {
-                    history.setZippedXml(ZipUtils.bytesToZip(zippedXml));
-                    hibernateTemplate.update(history);
-                }
-            }
-
-            if (historyList.size() > max) {
-                for (int i = max; i < historyList.size(); i++) {
-                    hibernateTemplate.delete(historyList.get(i));
-                }
-            }
-        }
+        final Session session = getSession();
+        session.persist(collaboration);
     }
 
     @Override
     public List<Mindmap> findMindmapByUser(@NotNull User user) {
 
-        final Mindmap collaborator;
-        final Query query = currentSession()
-                .createQuery("from com.wisemapping.model.Mindmap m where m.id in (select c.mindMap.id from com.wisemapping.model.Collaboration as c where c.collaborator.id=:collabId )");
+        final SelectionQuery<Mindmap> query = getSession()
+                .createSelectionQuery("from com.wisemapping.model.Mindmap m where m.id in (select c.mindMap.id from com.wisemapping.model.Collaboration as c where c.collaborator.id=:collabId )", Mindmap.class);
         query.setParameter("collabId", user.getId());
 
         return query.getResultList();
     }
 
-    @Override
-    public List<Mindmap> search(MindMapCriteria criteria, int maxResult) {
-        final Criteria hibernateCriteria = currentSession().createCriteria(Mindmap.class);
-        //always search public maps
-        hibernateCriteria.add(Restrictions.like("public", Boolean.TRUE));
-
-        if (criteria != null) {
-            final Junction junction;
-            if (criteria.isOrCriteria()) {
-                junction = Restrictions.disjunction();
-            } else {
-                junction = Restrictions.conjunction();
-            }
-
-            if (criteria.getTitle() != null && criteria.getTitle().length() > 0) {
-                final SimpleExpression titleRestriction = Restrictions.like("title", "%" + criteria.getTitle() + "%");
-                junction.add(titleRestriction);
-            }
-
-            if (criteria.getDescription() != null && criteria.getDescription().length() > 0) {
-                final SimpleExpression descriptionRestriction = Restrictions.like("description", "%" + criteria.getDescription() + "%");
-                junction.add(descriptionRestriction);
-            }
-            hibernateCriteria.add(junction);
-        }
-        return hibernateCriteria.list();
-    }
-
     @Override
     public List<Collaboration> findCollaboration(final int collaboratorId) {
-        Query query = currentSession().createQuery("from com.wisemapping.model.Collaboration c where c.collaborator.id=:collaboratorId");
+        final SelectionQuery<Collaboration> query = getSession().createSelectionQuery("from com.wisemapping.model.Collaboration c where c.collaborator.id=:collaboratorId", Collaboration.class);
         query.setParameter("collaboratorId", collaboratorId);
         return query.getResultList();
     }
 
     @Override
     public void addCollaborator(@NotNull Collaborator collaborator) {
+        final Session session = getSession();
         assert collaborator != null : "ADD MINDMAP COLLABORATOR: Collaborator is required!";
-        getHibernateTemplate().save(collaborator);
+        session.persist(collaborator);
     }
 
     @Override
     public void removeCollaboration(Collaboration collaboration) {
-        getHibernateTemplate().delete(collaboration);
+        final Session session = getSession();
+        session.remove(collaboration);
     }
 
     @Override
     public void removeCollaborator(@NotNull Collaborator collaborator) {
-        getHibernateTemplate().delete(collaborator);
+        final Session session = getSession();
+        session.remove(collaborator);
     }
 
     @Override
     @Nullable
     public Mindmap getMindmapById(int id) {
-        return getHibernateTemplate().get(Mindmap.class, id);
+        final Session session = getSession();
+        return session.get(Mindmap.class, id);
     }
 
     @Override
     public Mindmap getMindmapByTitle(final String title, final User user) {
         final Mindmap result;
-        Query query = currentSession().createQuery("from com.wisemapping.model.Mindmap wisemapping where title=:title and creator=:creator");
+        final SelectionQuery<Mindmap> query = getSession().createSelectionQuery("from com.wisemapping.model.Mindmap wisemapping where title=:title and creator=:creator", Mindmap.class);
         query.setParameter("title", title);
         query.setParameter("creator", user);
 
@@ -207,13 +158,13 @@ public class MindmapManagerImpl
     @Override
     public void saveMindmap(Mindmap mindMap) {
         assert mindMap != null : "Save Mindmap: Mindmap is required!";
-        currentSession().save(mindMap);
+        getSession().persist(mindMap);
     }
 
     @Override
     public void updateMindmap(@NotNull Mindmap mindMap, boolean saveHistory) {
         assert mindMap != null : "Save Mindmap: Mindmap is required!";
-        getHibernateTemplate().saveOrUpdate(mindMap);
+        getSession().merge(mindMap);
         if (saveHistory) {
             saveHistory(mindMap);
         }
@@ -222,16 +173,20 @@ public class MindmapManagerImpl
     @Override
     public void removeMindmap(@NotNull final Mindmap mindmap) {
         // Delete history first ...
-        final Criteria hibernateCriteria = currentSession().createCriteria(MindMapHistory.class);
-        hibernateCriteria.add(Restrictions.eq("mindmapId", mindmap.getId()));
-        final List list = hibernateCriteria.list();
-        getHibernateTemplate().deleteAll(list);
+        final Session session = getSession();
+        final CriteriaBuilder cb = session.getCriteriaBuilder();
+
+        final CriteriaDelete<MindMapHistory> cr = cb.createCriteriaDelete(MindMapHistory.class);
+        final Root<MindMapHistory> root = cr.from(MindMapHistory.class);
+
+        final CriteriaDelete<MindMapHistory> deleteStatement = cr.where(cb.equal(root.get("mindmapId"), mindmap.getId()));
+        session.createMutationQuery(deleteStatement).executeUpdate();
 
         // Remove collaborations ...
         mindmap.removedCollaboration(mindmap.getCollaborations());
 
         // Delete mindmap ....
-        getHibernateTemplate().delete(mindmap);
+        getSession().remove(mindmap);
     }
 
     private void saveHistory(@NotNull final Mindmap mindMap) {
@@ -241,6 +196,6 @@ public class MindmapManagerImpl
         history.setCreationTime(Calendar.getInstance());
         history.setEditor(mindMap.getLastEditor());
         history.setMindmapId(mindMap.getId());
-        getHibernateTemplate().saveOrUpdate(history);
+        getSession().merge(history);
     }
 }
diff --git a/wise-webapp/src/main/java/com/wisemapping/dao/UserManagerImpl.java b/wise-webapp/src/main/java/com/wisemapping/dao/UserManagerImpl.java
index e568f0ad..c71d89f8 100644
--- a/wise-webapp/src/main/java/com/wisemapping/dao/UserManagerImpl.java
+++ b/wise-webapp/src/main/java/com/wisemapping/dao/UserManagerImpl.java
@@ -18,27 +18,28 @@
 
 package com.wisemapping.dao;
 
-import com.wisemapping.model.AccessAuditory;
-import com.wisemapping.model.AuthenticationType;
-import com.wisemapping.model.Collaboration;
-import com.wisemapping.model.Collaborator;
-import com.wisemapping.model.User;
+import com.wisemapping.model.*;
 import com.wisemapping.security.DefaultPasswordEncoderFactories;
 import com.wisemapping.security.LegacyPasswordEncoder;
+import jakarta.annotation.Resource;
 import org.hibernate.ObjectNotFoundException;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.query.SelectionQuery;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
-import org.springframework.orm.hibernate5.HibernateTemplate;
-import org.springframework.orm.hibernate5.support.HibernateDaoSupport;
 import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Repository;
 
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArraySet;
 
+@Repository
 public class UserManagerImpl
-        extends HibernateDaoSupport
         implements UserManager {
+    @Resource
+    private SessionFactory sessionFactory;
 
     private PasswordEncoder passwordEncoder;
 
@@ -46,9 +47,12 @@ public class UserManagerImpl
         this.passwordEncoder = passwordEncoder;
     }
 
-    @SuppressWarnings("unchecked")
     public List<User> getAllUsers() {
-        return currentSession().createQuery("from com.wisemapping.model.User user").list();
+        return getSession().createSelectionQuery("from com.wisemapping.model.User user", User.class).getResultList();
+    }
+
+    private Session getSession() {
+        return sessionFactory.getCurrentSession();
     }
 
 
@@ -57,10 +61,10 @@ public class UserManagerImpl
     public User getUserBy(@NotNull final String email) {
         User user = null;
 
-        var query = currentSession().createQuery("from com.wisemapping.model.User colaborator where email=:email");
+        SelectionQuery<User> query = getSession().createSelectionQuery("from com.wisemapping.model.User colaborator where email=:email",User.class);
         query.setParameter("email", email);
 
-        final List<User> users = query.list();
+        final List<User> users = query.getResultList();
         if (users != null && !users.isEmpty()) {
             assert users.size() == 1 : "More than one user with the same email!";
             user = users.get(0);
@@ -71,19 +75,20 @@ public class UserManagerImpl
 
     @Override
     public Collaborator getCollaboratorBy(final String email) {
-        final Collaborator cola;
-        var query = currentSession().createQuery("from com.wisemapping.model.Collaborator colaborator where " +
-                "email=:email");
+        final Collaborator result;
+        Session session = getSession();
+        final SelectionQuery<Collaborator> query = session.createSelectionQuery("from com.wisemapping.model.Collaborator colaborator where " +
+                "email=:email", Collaborator.class);
         query.setParameter("email", email);
 
-        final List<User> cols = query.list();
+        final List<Collaborator> cols = query.getResultList();
         if (cols != null && !cols.isEmpty()) {
             assert cols.size() == 1 : "More than one colaborator with the same email!";
-            cola = cols.get(0);
+            result = cols.get(0);
         } else {
-            cola = null;
+            result = null;
         }
-        return cola;
+        return result;
     }
 
     @Nullable
@@ -91,7 +96,7 @@ public class UserManagerImpl
     public User getUserBy(int id) {
         User user = null;
         try {
-            user = getHibernateTemplate().get(User.class, id);
+            user = getSession().get(User.class, id);
         } catch (ObjectNotFoundException e) {
             // Ignore ...
         }
@@ -106,7 +111,7 @@ public class UserManagerImpl
         } else {
             user.setPassword("");
         }
-        getHibernateTemplate().saveOrUpdate(user);
+        getSession().persist(user);
     }
 
     @Override
@@ -114,10 +119,10 @@ public class UserManagerImpl
         assert user != null : "Trying to store a null user";
 
         // Migrate from previous temporal collab to new user ...
-        final HibernateTemplate template = getHibernateTemplate();
+        final Session session = getSession();
         collaborator.setEmail(collaborator.getEmail() + "_toRemove");
-        template.saveOrUpdate(collaborator);
-        template.flush();
+        session.merge(collaborator);
+        session.flush();
 
         // Save all new...
         this.createUser(user);
@@ -129,18 +134,18 @@ public class UserManagerImpl
         }
 
         // Delete old user ...
-        template.delete(collaborator);
+        session.remove(collaborator);
         return user;
     }
 
     @Override
     public void removeUser(@NotNull final User user) {
-        getHibernateTemplate().delete(user);
+        getSession().remove(user);
     }
 
     public void auditLogin(@NotNull AccessAuditory accessAuditory) {
         assert accessAuditory != null : "accessAuditory is null";
-        getHibernateTemplate().save(accessAuditory);
+        getSession().persist(accessAuditory);
     }
 
     public void updateUser(@NotNull User user) {
@@ -152,21 +157,21 @@ public class UserManagerImpl
             user.setPassword(passwordEncoder.encode(user.getPassword()));
         }
 
-        getHibernateTemplate().update(user);
+        getSession().merge(user);
     }
 
     public User getUserByActivationCode(long code) {
         final User user;
 
-        var query = currentSession().createQuery("from com.wisemapping.model.User user where " +
-                "activationCode=:activationCode");
+        final SelectionQuery<User> query = getSession().createSelectionQuery("from com.wisemapping.model.User user where " +
+                "activationCode=:activationCode", User.class);
         query.setParameter("activationCode", code);
-        final List users = query.list();
 
+        final List<User> users = query.getResultList();
         if (users != null && !users.isEmpty()) {
 
             assert users.size() == 1 : "More than one user with the same username!";
-            user = (User) users.get(0);
+            user = users.get(0);
         } else {
             user = null;
         }
diff --git a/wise-webapp/src/main/java/com/wisemapping/service/MindmapService.java b/wise-webapp/src/main/java/com/wisemapping/service/MindmapService.java
index 02574da7..084f5d58 100755
--- a/wise-webapp/src/main/java/com/wisemapping/service/MindmapService.java
+++ b/wise-webapp/src/main/java/com/wisemapping/service/MindmapService.java
@@ -49,8 +49,6 @@ public interface MindmapService {
 
     void removeMindmap(@NotNull final Mindmap mindmap, @NotNull final User user) throws WiseMappingException;
 
-    List<Mindmap> search(MindMapCriteria criteria);
-
     List<MindMapHistory> findMindmapHistory(int mindmapId);
 
     boolean hasPermissions(@Nullable User user, Mindmap map, CollaborationRole allowedRole);
diff --git a/wise-webapp/src/main/java/com/wisemapping/service/MindmapServiceImpl.java b/wise-webapp/src/main/java/com/wisemapping/service/MindmapServiceImpl.java
index 7a4a763f..e6791fe2 100755
--- a/wise-webapp/src/main/java/com/wisemapping/service/MindmapServiceImpl.java
+++ b/wise-webapp/src/main/java/com/wisemapping/service/MindmapServiceImpl.java
@@ -134,11 +134,6 @@ public class MindmapServiceImpl
         mindmapManager.updateMindmap(mindMap, saveHistory);
     }
 
-    @Override
-    public List<Mindmap> search(MindMapCriteria criteria) {
-        return mindmapManager.search(criteria);
-    }
-
     @Override
     public void removeCollaboration(@NotNull Mindmap mindmap, @NotNull Collaboration collaboration) throws CollaborationException {
         // remove collaborator association
diff --git a/wise-webapp/src/main/webapp/WEB-INF/wisemapping-dao.xml b/wise-webapp/src/main/webapp/WEB-INF/wisemapping-dao.xml
index 8d893943..3a0d213f 100644
--- a/wise-webapp/src/main/webapp/WEB-INF/wisemapping-dao.xml
+++ b/wise-webapp/src/main/webapp/WEB-INF/wisemapping-dao.xml
@@ -36,10 +36,6 @@
     </bean>
 
     <!-- Hibernate Template Definition -->
-    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
-        <property name="sessionFactory" ref="mindmapSessionFactory"/>
-    </bean>
-
     <bean id="txAttributes"
           class="org.springframework.transaction.interceptor.NameMatchTransactionAttributeSource">
         <property name="properties">
diff --git a/wise-webapp/src/main/webapp/WEB-INF/wisemapping-model.xml b/wise-webapp/src/main/webapp/WEB-INF/wisemapping-model.xml
index d2925eac..b56a8723 100644
--- a/wise-webapp/src/main/webapp/WEB-INF/wisemapping-model.xml
+++ b/wise-webapp/src/main/webapp/WEB-INF/wisemapping-model.xml
@@ -6,17 +6,12 @@
 		http://www.springframework.org/schema/beans/spring-beans.xsd">
     <beans>
         <bean id="userManager" class="com.wisemapping.dao.UserManagerImpl">
-            <property name="hibernateTemplate" ref="hibernateTemplate"/>
             <property name="encoder" ref="passwordEncoder"/>
         </bean>
 
-        <bean id="mindmapManager" class="com.wisemapping.dao.MindmapManagerImpl">
-            <property name="hibernateTemplate" ref="hibernateTemplate"/>
-        </bean>
+        <bean id="mindmapManager" class="com.wisemapping.dao.MindmapManagerImpl"/>
 
-        <bean id="labelManager" class="com.wisemapping.dao.LabelManagerImpl">
-            <property name="hibernateTemplate" ref="hibernateTemplate"/>
-        </bean>
+        <bean id="labelManager" class="com.wisemapping.dao.LabelManagerImpl"/>
 
     </beans>
 </beans>
\ No newline at end of file