diff --git a/spring-web-modules/spring-thymeleaf-4/pom.xml b/spring-web-modules/spring-thymeleaf-4/pom.xml
index 2582044c0f..1e6be32801 100644
--- a/spring-web-modules/spring-thymeleaf-4/pom.xml
+++ b/spring-web-modules/spring-thymeleaf-4/pom.xml
@@ -9,9 +9,9 @@
 
     <parent>
         <groupId>com.baeldung</groupId>
-        <artifactId>parent-boot-2</artifactId>
+        <artifactId>parent-boot-3</artifactId>
         <version>0.0.1-SNAPSHOT</version>
-        <relativePath>../../parent-boot-2</relativePath>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/expression/DinoController.java b/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/expression/DinoController.java
index 6cbf1bae0e..ad2875106d 100644
--- a/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/expression/DinoController.java
+++ b/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/expression/DinoController.java
@@ -23,7 +23,7 @@ public class DinoController {
         model.addAttribute("dinos", dinos);
         System.out.println(dinos);
 
-        return "templates-3/index";
+        return "index";
 
     }
 
@@ -32,7 +32,7 @@ public class DinoController {
 
         model.addAttribute("dinos", new Dino());
 
-        return "templates-3/form";
+        return "form";
 
     }
 
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/mvcdata/EmailController.java b/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/mvcdata/EmailController.java
index 1bfe3f3428..bdf303ef62 100644
--- a/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/mvcdata/EmailController.java
+++ b/spring-web-modules/spring-thymeleaf-4/src/main/java/com/baeldung/thymeleaf/mvcdata/EmailController.java
@@ -1,7 +1,7 @@
 package com.baeldung.thymeleaf.mvcdata;
 
-import javax.servlet.ServletContext;
-import javax.servlet.http.HttpSession;
+import jakarta.servlet.ServletContext;
+import jakarta.servlet.http.HttpSession;
 
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
@@ -41,21 +41,6 @@ public class EmailController {
         return "mvcdata/email-request-parameters";
     }
 
-    @GetMapping("/email/sessionattributes")
-    public String emailSessionAttributes(HttpSession httpSession) {
-        httpSession.setAttribute("emaildata", emailData);
-        return "mvcdata/email-session-attributes";
-    }
-
-    @GetMapping("/email/servletcontext")
-    public String emailServletContext() {
-        servletContext.setAttribute("emailsubject", emailData.getEmailSubject());
-        servletContext.setAttribute("emailcontent", emailData.getEmailBody());
-        servletContext.setAttribute("emailaddress", emailData.getEmailAddress1());
-        servletContext.setAttribute("emaillocale", emailData.getEmailLocale());
-        return "mvcdata/email-servlet-context";
-    }
-
     @GetMapping("/email/beandata")
     public String emailBeanData() {
         return "mvcdata/email-bean-data";
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/form.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/form.html
similarity index 100%
rename from spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/form.html
rename to spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/form.html
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/index.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/index.html
similarity index 100%
rename from spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/index.html
rename to spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/index.html
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/result.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/result.html
similarity index 100%
rename from spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-3/result.html
rename to spring-web-modules/spring-thymeleaf-4/src/main/resources/templates-2/result.html
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-servlet-context.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-servlet-context.html
deleted file mode 100644
index b07573047e..0000000000
--- a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-servlet-context.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml"
-  xmlns:th="http://www.thymeleaf.org">
-    <body>
-        <h1>Subject</h1>
-        <p th:text="${#servletContext.getAttribute('emailsubject')}"></p>
-        <h1>Content</h1>
-        <p th:text="${#servletContext.getAttribute('emailcontent')}"></p>
-        <h1>Email address</h1>
-        <p th:text="${#servletContext.getAttribute('emailaddress')}"></p>
-        <h1>Language</h1>
-        <p th:text="${#servletContext.getAttribute('emaillocale')}"></p>
-    </body>
-</html>
\ No newline at end of file
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-session-attributes.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-session-attributes.html
deleted file mode 100644
index 9227171fc6..0000000000
--- a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/mvcdata/email-session-attributes.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html xmlns="http://www.w3.org/1999/xhtml"
-  xmlns:th="http://www.thymeleaf.org">
-    <body>
-        <h1>Subject</h1>
-        <p th:text="${session.emaildata.emailSubject}"></p>
-        <h1>Content</h1>
-        <p th:text="${session.emaildata.emailBody}"></p>
-        <h1>Email address</h1>
-        <p th:text="${session.emaildata.emailAddress1}"></p>
-        <h1>Language</h1>
-        <p th:text="${#session.getAttribute('emaillocale')}"></p>
-    </body>
-</html>
\ No newline at end of file
diff --git a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/url/index.html b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/url/index.html
index a8ac95aea3..9eabfd8e42 100644
--- a/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/url/index.html
+++ b/spring-web-modules/spring-thymeleaf-4/src/main/resources/templates/url/index.html
@@ -10,8 +10,5 @@
 <div th:if="${param.query != null}">
     <p th:text="${param.query[0]}" th:unless="${param.query == null}"></p>
 </div>
-<div th:if="${#request.getParameter('query') != null}">
-    <p th:text="${#request.getParameter('query')}" th:unless="${#request.getParameter('query') == null}"></p>
-</div>
 </body>
 </html>
\ No newline at end of file
diff --git a/spring-web-modules/spring-thymeleaf-4/src/test/java/com/baeldung/thymeleaf/mvcdata/EmailControllerUnitTest.java b/spring-web-modules/spring-thymeleaf-4/src/test/java/com/baeldung/thymeleaf/mvcdata/EmailControllerUnitTest.java
index 5e1190e174..12742e626c 100644
--- a/spring-web-modules/spring-thymeleaf-4/src/test/java/com/baeldung/thymeleaf/mvcdata/EmailControllerUnitTest.java
+++ b/spring-web-modules/spring-thymeleaf-4/src/test/java/com/baeldung/thymeleaf/mvcdata/EmailControllerUnitTest.java
@@ -48,20 +48,6 @@ public class EmailControllerUnitTest {
                 .andExpect(content().string(containsString("en-US")));
     }
 
-    @Test
-    public void whenCallSessionAttributes_thenReturnEmailData() throws Exception {
-        mockMvc.perform(MockMvcRequestBuilders.get("/email/sessionattributes"))
-                .andExpect(status().isOk())
-                .andExpect(content().string(containsString("Good morning !")));
-    }
-
-    @Test
-    public void whenCallServletContext_thenReturnEmailData() throws Exception {
-        mockMvc.perform(MockMvcRequestBuilders.get("/email/servletcontext"))
-                .andExpect(status().isOk())
-                .andExpect(content().string(containsString("jhon.doe@example.com")));
-    }
-
     @Test
     public void whenCallBeanData_thenReturnEmailData() throws Exception {
         mockMvc.perform(MockMvcRequestBuilders.get("/email/beandata"))