diff --git a/spring-boot-modules/spring-boot-basic-customization-2/README.md b/spring-boot-modules/spring-boot-basic-customization-2/README.md
index 0f4167d25b..4cd0ffc824 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/README.md
+++ b/spring-boot-modules/spring-boot-basic-customization-2/README.md
@@ -10,4 +10,5 @@ This module contains articles about Spring Boot customization 2
  - [Spring Boot Exit Codes](https://www.baeldung.com/spring-boot-exit-codes)
  - [Guide to Spring Type Conversions](https://www.baeldung.com/spring-type-conversions)
  - [Container Configuration in Spring Boot 2](https://www.baeldung.com/embeddedservletcontainercustomizer-configurableembeddedservletcontainer-spring-boot)
- - [Speed up Spring Boot Startup Time](https://www.baeldung.com/spring-boot-startup-speed)
\ No newline at end of file
+ - [Speed up Spring Boot Startup Time](https://www.baeldung.com/spring-boot-startup-speed)
+ - More articles: [[<-- prev]](/spring-boot-modules/spring-boot-basic-customization)
\ No newline at end of file
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/pom.xml b/spring-boot-modules/spring-boot-basic-customization-2/pom.xml
index 439051c7e6..452207bfc2 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/pom.xml
+++ b/spring-boot-modules/spring-boot-basic-customization-2/pom.xml
@@ -9,9 +9,10 @@
     <description>Module For Spring Boot Basic Customization 2</description>
 
     <parent>
-        <groupId>com.baeldung.spring-boot-modules</groupId>
-        <artifactId>spring-boot-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-3</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/conf/WebConf.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/conf/WebConf.java
index 7c52b117fd..9d54a7f80b 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/conf/WebConf.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/conf/WebConf.java
@@ -7,7 +7,7 @@ import org.springframework.boot.web.servlet.ServletRegistrationBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import javax.servlet.ServletContextListener;
+import jakarta.servlet.ServletContextListener;
 
 @Configuration
 public class WebConf {
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/filter/CustomFilter.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/filter/CustomFilter.java
index 8429fc855f..47c8b492a9 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/filter/CustomFilter.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/filter/CustomFilter.java
@@ -4,7 +4,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
-import javax.servlet.*;
+import jakarta.servlet.*;
 import java.io.IOException;
 
 @Component
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/listener/CustomListener.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/listener/CustomListener.java
index 62b316c012..8ea990a026 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/listener/CustomListener.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/listener/CustomListener.java
@@ -3,8 +3,8 @@ package com.baeldung.dispatchservlet.listener;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
+import jakarta.servlet.ServletContextEvent;
+import jakarta.servlet.ServletContextListener;
 
 public class CustomListener implements ServletContextListener {
 
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/servlet/CustomServlet.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/servlet/CustomServlet.java
index 2a99e797ce..b01116eb20 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/servlet/CustomServlet.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/dispatchservlet/servlet/CustomServlet.java
@@ -4,11 +4,11 @@ import com.baeldung.dispatchservlet.filter.CustomFilter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.servlet.ServletException;
-import javax.servlet.annotation.WebServlet;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 
 public class CustomServlet extends HttpServlet {
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/AuthenticationFilter.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/AuthenticationFilter.java
index 7ddcde7dc8..c7f5ea04f3 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/AuthenticationFilter.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/AuthenticationFilter.java
@@ -3,10 +3,10 @@ package com.baeldung.onceperrequestfilter;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
-import javax.servlet.FilterChain;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 
 @Component
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/HelloController.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/HelloController.java
index 0a354c91ac..225fb7ac78 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/HelloController.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/HelloController.java
@@ -6,7 +6,7 @@ import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.context.request.async.DeferredResult;
 
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpServletResponse;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/MyOncePerRequestFilter.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/MyOncePerRequestFilter.java
index 3fd304f86b..4543af06b7 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/MyOncePerRequestFilter.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/onceperrequestfilter/MyOncePerRequestFilter.java
@@ -5,10 +5,10 @@ import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 import org.springframework.web.filter.OncePerRequestFilter;
 
-import javax.servlet.FilterChain;
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 
 @Component
diff --git a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/typeconversion/entity/Employee.java b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/typeconversion/entity/Employee.java
index e1897de877..d05ecab621 100644
--- a/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/typeconversion/entity/Employee.java
+++ b/spring-boot-modules/spring-boot-basic-customization-2/src/main/java/com/baeldung/typeconversion/entity/Employee.java
@@ -1,7 +1,7 @@
 package com.baeldung.typeconversion.entity;
 
-import javax.persistence.Entity;
-import javax.persistence.Id;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
 
 @Entity
 public class Employee {
diff --git a/spring-boot-modules/spring-boot-basic-customization/README.md b/spring-boot-modules/spring-boot-basic-customization/README.md
index a3d9f1b1fc..0e5c5ddcbe 100644
--- a/spring-boot-modules/spring-boot-basic-customization/README.md
+++ b/spring-boot-modules/spring-boot-basic-customization/README.md
@@ -11,3 +11,4 @@ This module contains articles about Spring Boot customization
  - [Spring Boot: Configuring a Main Class](https://www.baeldung.com/spring-boot-main-class)
  - [How to Define a Spring Boot Filter?](https://www.baeldung.com/spring-boot-add-filter)
  - [Guide to the Favicon in Spring Boot](https://www.baeldung.com/spring-boot-favicon)
+ - More articles: [[next -->]](/spring-boot-modules/spring-boot-basic-customization-2)
diff --git a/spring-boot-modules/spring-boot-basic-customization/pom.xml b/spring-boot-modules/spring-boot-basic-customization/pom.xml
index 581a7fec06..a491dd769f 100644
--- a/spring-boot-modules/spring-boot-basic-customization/pom.xml
+++ b/spring-boot-modules/spring-boot-basic-customization/pom.xml
@@ -9,9 +9,10 @@
     <description>Module For Spring Boot Basic Customization</description>
 
     <parent>
-        <groupId>com.baeldung.spring-boot-modules</groupId>
-        <artifactId>spring-boot-modules</artifactId>
-        <version>1.0.0-SNAPSHOT</version>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-boot-3</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-boot-3</relativePath>
     </parent>
 
     <dependencies>
@@ -81,7 +82,7 @@
     </build>
 
     <properties>
-        <spring-boot-maven-plugin.version>1.5.2.RELEASE</spring-boot-maven-plugin.version>
+        <spring-boot-maven-plugin.version>3.1.5</spring-boot-maven-plugin.version>
         <!-- The main class to start by executing "java -jar" -->
         <start-class>com.baeldung.changeport.CustomApplication</start-class>
     </properties>
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/RequestResponseLoggingFilter.java b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/RequestResponseLoggingFilter.java
index 3924354932..ae2a89dc2d 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/RequestResponseLoggingFilter.java
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/RequestResponseLoggingFilter.java
@@ -5,9 +5,14 @@ import org.slf4j.LoggerFactory;
 import org.springframework.core.annotation.Order;
 import org.springframework.stereotype.Component;
 
-import javax.servlet.*;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.FilterConfig;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 
 /**
@@ -23,7 +28,7 @@ public class RequestResponseLoggingFilter implements Filter {
 	private final static Logger LOG = LoggerFactory.getLogger(RequestResponseLoggingFilter.class);
 
 	@Override
-	public void init(final FilterConfig filterConfig) throws ServletException {
+	public void init(final FilterConfig filterConfig) {
 		LOG.info("Initializing filter :{}", this);
 	}
 
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/TransactionFilter.java b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/TransactionFilter.java
index 604829c3d3..dcf940614c 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/TransactionFilter.java
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/bootcustomfilters/filters/TransactionFilter.java
@@ -5,8 +5,13 @@ import org.slf4j.LoggerFactory;
 import org.springframework.core.annotation.Order;
 import org.springframework.stereotype.Component;
 
-import javax.servlet.*;
-import javax.servlet.http.HttpServletRequest;
+import jakarta.servlet.Filter;
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.FilterConfig;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.ServletRequest;
+import jakarta.servlet.ServletResponse;
+import jakarta.servlet.http.HttpServletRequest;
 import java.io.IOException;
 
 /**
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java
index be27f099db..604067fe26 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/errorhandling/controllers/MyErrorController.java
@@ -5,8 +5,8 @@ import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 
-import javax.servlet.RequestDispatcher;
-import javax.servlet.http.HttpServletRequest;
+import jakarta.servlet.RequestDispatcher;
+import jakarta.servlet.http.HttpServletRequest;
 
 @Controller
 public class MyErrorController implements ErrorController {
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java
index 4ad763e0ab..397b872a53 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/FailureAnalyzerApplication.java
@@ -4,7 +4,7 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Profile;
 
-import javax.annotation.security.RolesAllowed;
+import jakarta.annotation.security.RolesAllowed;
 
 @Profile("failureanalyzer")
 @SpringBootApplication(scanBasePackages = "com.baeldung.failureanalyzer")
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyService.java b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyService.java
index f31b67615f..dbdb2dfcc3 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyService.java
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/java/com/baeldung/failureanalyzer/MyService.java
@@ -2,7 +2,7 @@ package com.baeldung.failureanalyzer;
 
 import org.springframework.stereotype.Service;
 
-import javax.annotation.Resource;
+import jakarta.annotation.Resource;
 
 @Service
 public class MyService {
diff --git a/spring-boot-modules/spring-boot-basic-customization/src/main/resources/META-INF/spring.factories b/spring-boot-modules/spring-boot-basic-customization/src/main/resources/META-INF/spring.factories
index 336477df96..af3bdb6ea6 100644
--- a/spring-boot-modules/spring-boot-basic-customization/src/main/resources/META-INF/spring.factories
+++ b/spring-boot-modules/spring-boot-basic-customization/src/main/resources/META-INF/spring.factories
@@ -1,2 +1 @@
 org.springframework.boot.diagnostics.FailureAnalyzer=com.baeldung.failureanalyzer.MyBeanNotOfRequiredTypeFailureAnalyzer
-