[JAVA-29168] Upgrade spring-boot-basic-customization module to Spring Boot 3 (#15767)

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);
 	}
 

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;
 
 /**

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 {

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")

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 {

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
-