diff --git a/model/jpa/src/main/java/org/keycloak/models/jpa/PersistenceExceptionConverter.java b/model/jpa/src/main/java/org/keycloak/models/jpa/PersistenceExceptionConverter.java
deleted file mode 100755
index d68dc599be..0000000000
--- a/model/jpa/src/main/java/org/keycloak/models/jpa/PersistenceExceptionConverter.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2016 Red Hat, Inc. and/or its affiliates
- * and other contributors as indicated by the @author tags.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.keycloak.models.jpa;
-
-import org.hibernate.exception.ConstraintViolationException;
-import org.keycloak.models.ModelDuplicateException;
-import org.keycloak.models.ModelException;
-
-import jakarta.persistence.EntityExistsException;
-import jakarta.persistence.EntityManager;
-import java.lang.reflect.InvocationHandler;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.lang.reflect.Proxy;
-import java.sql.SQLIntegrityConstraintViolationException;
-import java.util.function.Predicate;
-
-/**
- * @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
- */
-public class PersistenceExceptionConverter implements InvocationHandler {
-
-    private EntityManager em;
-
-    public static EntityManager create(EntityManager em) {
-        return (EntityManager) Proxy.newProxyInstance(EntityManager.class.getClassLoader(), new Class[]{EntityManager.class}, new PersistenceExceptionConverter(em));
-    }
-
-    private PersistenceExceptionConverter(EntityManager em) {
-        this.em = em;
-    }
-
-    @Override
-    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
-        try {
-            return method.invoke(em, args);
-        } catch (InvocationTargetException e) {
-            throw convert(e.getCause());
-        }
-    }
-
-    // For JTA, the database operations are executed during the commit phase of a transaction, and DB exceptions can be propagated differently
-    public static ModelException convert(Throwable t) {
-        final Predicate<Throwable> checkDuplicationMessage = throwable -> {
-            final String message = throwable.getCause() != null ? throwable.getCause().getMessage() : throwable.getMessage();
-            return message.toLowerCase().contains("duplicate");
-        };
-
-        Predicate<Throwable> throwModelDuplicateEx = throwable ->
-                throwable instanceof EntityExistsException
-                        || throwable instanceof ConstraintViolationException
-                        || throwable instanceof SQLIntegrityConstraintViolationException;
-
-        throwModelDuplicateEx = throwModelDuplicateEx.or(checkDuplicationMessage);
-
-        if (t.getCause() != null && throwModelDuplicateEx.test(t.getCause())) {
-            throw new ModelDuplicateException(t.getCause());
-        } else if (throwModelDuplicateEx.test(t)) {
-            throw new ModelDuplicateException(t);
-        } else {
-            throw new ModelException(t);
-        }
-    }
-
-}