We Keep Coding

threw Exception: java.lang.IllegalStateException: No WebApplicationContext found: no ContextLoaderListener or DispatcherServlet registered?

I am using Spring, Maven for this project, but I am facing this error continuously even after creating dispatcher servlet.
This is my code in ConfigFile:
package com.payroll.config;
import javax.sql.DataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
#Configuration
#ComponentScan(basePackages = {"com.payroll"})
#EnableWebMvc
public class PayrollConfig implements WebMvcConfigurer {
#Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/View/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry
.addResourceHandler("/URLToReach/**")
.addResourceLocations("/resources");
}
#Bean
public JdbcTemplate jdbcTemplate() {
JdbcTemplate jdbcTemplate= new JdbcTemplate(dataSource());
return jdbcTemplate;
}
#Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource=new DriverManagerDataSource();
dataSource.setUsername("system");
dataSource.setPassword("orcl");
dataSource.setUrl("jdbc:oracle:thin:#localhost:1521:orcl");
dataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
return dataSource;
}
}
When I launch my application I am getting this error:
java.lang.IllegalStateException: No WebApplicationContext found: no ContextLoaderListener or DispatcherServlet registered?
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)

Error resolving template [error], template might not exist or might not be accessible by any of the configured Template Resolvers

index.html works perfectly but if I click a link in it, eclipse gives me these errors and the site goes error 404.
logs:
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [error], template might not exist or might not be accessible by any of the configured Template Resolvers
at org.thymeleaf.engine.TemplateManager.resolveTemplate(TemplateManager.java:869) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:607) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) ~[thymeleaf-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190) ~[thymeleaf-spring5-3.0.15.RELEASE.jar:3.0.15.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1401) ~[spring-webmvc-5.3.20.jar:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145) ~[spring-webmvc-5.3.20.jar:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084) ~[spring-webmvc-5.3.20.jar:5.3.20]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.20.jar:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.20.jar:5.3.20]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.20.jar:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.63.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.20.jar:5.3.20]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.63.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.20.jar:5.3.20]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.20.jar:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.20.jar:5.3.20]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:385) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:313) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:403) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:249) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.63.jar:9.0.63]
at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]
2022-05-27 17:33:12.749 ERROR 668 --- [nio-9090-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] threw exception
my index.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8"/>
<link href="/frontpage.css" rel="stylesheet">
<title>Catering Ristorazione C.S.L</title>
</head>
<body>
<div>
<h1> <strong><em>Catering Ristorazione C.S.L</em></strong></h1>
<div> <hr>
<a th:href="#{/elencochefs}" >Elenco degli chef</a>
</div>
<div>
<a th:href="#{/elencobuffets}" >Elenco dei buffet</a>
</div>
</hr>
</div>
</body>
</html>
the page i try to get redirected to:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Chefs</title>
<link href="/elencochefs.css" rel="stylesheet">
</head>
<body>
<h3>I nostri Chefs:</h3>
<ul>
<li th:each="chef : ${chefs}">
<a href="chef.html" class= "link"
th:href="#{'/chef' + '/' + '/${chef.id}}"
th:text="${chef.nome} + ' ' + ${chef.cognome}">Paolo Rossi</a>
</li>
</ul>
</body>
</html>
thymeleaf configuration:
# = Thymeleaf configurations
#==================================
spring.thymeleaf.check-template-location=true
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
spring.thymeleaf.servlet.content-type=text/html
spring.thymeleaf.cache=false
spring.thymeleaf.enabled=true
spring.thymeleaf.encoding=UTF-8
I honestly dont know where the problem could be, so I dont know what part of my code you need...ask and i'll post it, thank you for your time and help
EDIT:
my controller class:
package com.example.demo.controller;
import java.util.List;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import com.example.demo.model.Chef;
import com.example.demo.service.ChefService;
import com.example.demo.validator.ChefValidator;
#Controller
public class ChefController {
#Autowired
private ChefService cs;
#Autowired
private ChefValidator cv;
//funzione per aggiungere uno chef
#PostMapping("/chef")
public String addChef(#Valid #ModelAttribute("chef") Chef chef, Model model, BindingResult bindingresult) {
this.cv.validate(chef, bindingresult);
if(!bindingresult.hasErrors()) {
this.cs.save(chef);
model.addAttribute("chef", cs.findById(chef.getId()));
return "chef.html";
}
else
return "chefForm.html";
}
//funzione per rimuovere uno chef
#DeleteMapping("/deleteChef/{id}")
public String removeChef(#PathVariable("id") Long id, Model model) {
cs.deleteById(id);
model.addAttribute("chefs", cs.findAll());
return "elencochefs.html";
}
//elenco degli chef
#GetMapping("/chefs")
public String getChefs(Model model) {
List<Chef> chefs = cs.findAll();
model.addAttribute("chefs", chefs);
return "elencochefs.html";
}
//uno chef in particolare
#GetMapping("/chef/{id}")
public String getChef(#PathVariable("id")Long id, Model model) {
Chef chef = cs.findById(id);
model.addAttribute("chef",chef);
return "chef.html";
}
//form per aggiungere chef
#GetMapping("/chefForm")
public String getChef(Model model) {
model.addAttribute("chef", new Chef());
return "chefForm.html";
}
//form per rimuovere chef
#GetMapping("/chefToDelete/{id}")
public String deleteChef(#PathVariable("id") Long id, Model model) {
model.addAttribute("cheftoDelete", cs.findById(id));
return "chefToDelete.html";
}
}

Solution:
You have to register "/elencochefs & /elencobuffets" these both endpoints in your controller & also additionally you can add/write error.html file to auto redirect for any error in application.
Failure Reason:
In your index.html,
<a th:href="#{/elencochefs}" >Elenco degli chef</a>
<a th:href="#{/elencobuffets}" >Elenco dei buffet</a>
these both links/endpoints (/elencochefs & /elencobuffets) are not configured/mapped in your controller.
Hence when you click on them, your application will not find them & will return with 404. But to display that 404 error with mesage on UI, it finds error.html, which is not configured/written by you.
So it will give you another error in logs saying "org.thymeleaf.exceptions.TemplateInputException: Error resolving template [error], template might not exist or might not be accessible by any of the configured Template Resolvers".

Why do I get a "io.jsonwebtoken.ExpiredJwtException"?

I have a problem with my Spring Security JWT Application. I am getting an error because my JWT is expired, but I can't find, where it gets the 2022-04-12 as an expiration date. I can't find a single piece of code, which says that the expiration date is the 2022-04-12. After my understanding, it is creating a new token, each time I am logging in with a new expiration time, which also has to be true, because in my output I get a new token everytime. But because the 2022-04-12 has already passed, I am getting a "io.jsonwebtoken.ExpiredJwtException". So where does it get the 2022-04-12 from???
I am just providing the parts of my code, I think are neccesary, but if you need more code, just let me know!( I am using Spring Security, if that matters)
Filter:
package de.gabriel.springsecurityjwt.filters;
import de.gabriel.springsecurityjwt.services.MyUserDetailsService;
import de.gabriel.springsecurityjwt.util.JwtUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
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 java.io.IOException;
import java.util.Date;
#Component
public class JwtRequestFilter extends OncePerRequestFilter {
#Autowired
private MyUserDetailsService userDetailsService;
#Autowired
private JwtUtil jwtUtil;
#Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws ServletException, IOException {
final String authorizationHeader = request.getHeader("Authorization");
String username = null;
String jwt = null;
if (authorizationHeader != null && authorizationHeader.startsWith("Bearer ")) {
jwt = authorizationHeader.substring(7);
username = jwtUtil.extractUsername(jwt);
}
if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
if (jwtUtil.validateToken(jwt, userDetails)) { // If token is valid
UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken = new UsernamePasswordAuthenticationToken(
userDetails, null, userDetails.getAuthorities());
usernamePasswordAuthenticationToken
.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
SecurityContextHolder.getContext().setAuthentication(usernamePasswordAuthenticationToken);
}
}
chain.doFilter(request, response);
}
}
Util class for JWT:
package de.gabriel.springsecurityjwt.util;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Service;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Function;
#Service
public class JwtUtil { // JwtUtil is a class that is used to create and parse JWT tokens
private final String SECRET_KEY = "secret";
public String extractUsername(String token) {
return extractClaim(token, Claims::getSubject);
}
public Date extractExpiration(String token) {
return extractClaim(token, Claims::getExpiration);
}
public <T> T extractClaim(String token, Function<Claims, T> claimsResolver) {
final Claims claims = extractAllClaims(token);
return claimsResolver.apply(claims);
}
private Claims extractAllClaims(String token) {
return Jwts.parser().setSigningKey(SECRET_KEY).parseClaimsJws(token).getBody();
}
private Boolean isTokenExpired(String token) {
return extractExpiration(token).before(new Date());
}
public String generateToken(UserDetails userDetails) {
Map<String, Object> claims = new HashMap<>();
return createToken(claims, userDetails.getUsername());
}
private String createToken(Map<String, Object> claims, String subject) {
return Jwts.builder().setClaims(claims).setSubject(subject).setIssuedAt(new Date(System.currentTimeMillis()))
.setExpiration(new Date(System.currentTimeMillis() + 1000 * 60 * 60 * 10))
.signWith(SignatureAlgorithm.HS256, SECRET_KEY).compact();
}
public Boolean validateToken(String token, UserDetails userDetails) {
final String username = extractUsername(token);
return (username.equals(userDetails.getUsername()) && !isTokenExpired(token));
}
}
Rest Controller class:
package de.gabriel.springsecurityjwt;
import de.gabriel.springsecurityjwt.models.AuthenticationRequest;
import de.gabriel.springsecurityjwt.models.AuthenticationResponse;
import de.gabriel.springsecurityjwt.services.MyUserDetailsService;
import de.gabriel.springsecurityjwt.util.JwtUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.util.Date;
#RestController
public class HelloResource {
#Autowired
private AuthenticationManager authenticationManager;
#Autowired
private JwtUtil jwtTokenUtil;
#Autowired
private MyUserDetailsService userDetailsService;
#RequestMapping( "/hello" )
public String hello() {
return "Hello World";
}
#RequestMapping(value = "/authenticate", method = RequestMethod.POST)
public ResponseEntity<?> createAuthenticationToken(#RequestBody AuthenticationRequest authenticationRequest) throws Exception {
try {
authenticationManager.authenticate(
new UsernamePasswordAuthenticationToken(authenticationRequest.getUsername(), authenticationRequest.getPassword())
);
}
catch (BadCredentialsException e) {
throw new Exception("Incorrect username or password", e);
}
final UserDetails userDetails = userDetailsService
.loadUserByUsername(authenticationRequest.getUsername());
final String jwt = jwtTokenUtil.generateToken(userDetails);
return ResponseEntity.ok(new AuthenticationResponse(jwt)); // Return token
}
}
Security Configurer class:
package de.gabriel.springsecurityjwt;
import de.gabriel.springsecurityjwt.filters.JwtRequestFilter;
import de.gabriel.springsecurityjwt.services.MyUserDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
#EnableWebSecurity
public class SecurityConfigurer extends WebSecurityConfigurerAdapter {
#Autowired
private UserDetailsService myUserDetailsService;
#Autowired
private JwtRequestFilter jwtRequestFilter;
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(myUserDetailsService);
}
#Bean
public PasswordEncoder passwordEncoder() {
return NoOpPasswordEncoder.getInstance();
}
#Override
#Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
#Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity.csrf().disable()
.authorizeRequests().antMatchers("/authenticate").permitAll().
anyRequest().authenticated().and().
exceptionHandling().and().sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS);
httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
}
}
Here is the error log:
io.jsonwebtoken.ExpiredJwtException: JWT expired at 2022-04-12T21:27:05Z. Current time: 2022-04-14T22:20:23Z, a difference of 175998276 milliseconds. Allowed clock skew: 0 milliseconds.
at io.jsonwebtoken.impl.DefaultJwtParser.parse(DefaultJwtParser.java:385) ~[jjwt-0.9.1.jar:0.9.1]
at io.jsonwebtoken.impl.DefaultJwtParser.parse(DefaultJwtParser.java:481) ~[jjwt-0.9.1.jar:0.9.1]
at io.jsonwebtoken.impl.DefaultJwtParser.parseClaimsJws(DefaultJwtParser.java:541) ~[jjwt-0.9.1.jar:0.9.1]
at de.gabriel.springsecurityjwt.util.JwtUtil.extractAllClaims(JwtUtil.java:31) ~[classes/:na]
at de.gabriel.springsecurityjwt.util.JwtUtil.extractClaim(JwtUtil.java:27) ~[classes/:na]
at de.gabriel.springsecurityjwt.util.JwtUtil.extractUsername(JwtUtil.java:19) ~[classes/:na]
at de.gabriel.springsecurityjwt.filters.JwtRequestFilter.doFilterInternal(JwtRequestFilter.java:41) ~[classes/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183) ~[spring-security-web-5.6.2.jar:5.6.2]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) ~[spring-web-5.3.18.jar:5.3.18]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.18.jar:5.3.18]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]
This is the token used:
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJmb28iLCJleHAiOjE2NTAwMDIyOTEsImlhdCI6MTY0OTk2NjI5MX0.tzfB0Wy9Dp3Y9pl-5_Oc4gwPClOHlIjE8kHUcgvKhUs
And this is the token (payload) decoded:
{
"sub": "foo",
"exp": 1650002291, (2022-04-15)
"iat": 1649966291
}
This is a
image of the decoded JWT from jwt.io
And this this is the request I use

I made a mistake, while sending the request in Postman. Instead of passing the JWT in the Header I passed it as an Parameter, which of course won't work because I have nothing that extracts the JWT from the URL🤦‍♂️

Mvc Thymeleaf Spring Http 500

I already read similar questions, but I don't found the solution. I've got some problem with Thymeleaf, becaouse this code with jsp it's work. But with Thymeleaf it can't find my view page.
This is a WebConfig class
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = " namePackage.controller;")
public class WebConfig implements WebMvcConfigurer
#Autowired
private ApplicationContext applicationContext;
/*
* STEP 1 - Create SpringResourceTemplateResolver
* */
#Bean
public SpringResourceTemplateResolver templateResolver() {
SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
templateResolver.setApplicationContext(applicationContext);
templateResolver.setPrefix("src/main/webapp/WEB-INF/views/");
templateResolver.setSuffix(".html");
return templateResolver;
}
/*
* STEP 2 - Create SpringTemplateEngine
* */
#Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver());
templateEngine.setEnableSpringELCompiler(true);
return templateEngine;
}
/*
* STEP 3 - Register ThymeleafViewResolver
* */
public void configureViewResolvers(ViewResolverRegistry registry) {
ThymeleafViewResolver resolver = new ThymeleafViewResolver();
resolver.setTemplateEngine(templateEngine());
registry.viewResolver(resolver);
}
}
This is a simple controller
#Controller
#RequestMapping("/")
public class BenvenutoController {
#GetMapping("/ciao")
public String ciao(Model model) {
model.addAttribute("mex", "Hello");
return "welcome";
}
}
This is html page(view called "welcome")
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>Hi</title>
</head>
<body>
<div >
<h1>Hello</h1>
<p th:text="${mex}"></p>
</div>
</body>
</html>
org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.Error: Unresolved compilation problem:
The method addAllAttributes(Collection<?>) in the type Model is not applicable for the arguments (String, String)
So It can't find my view page, but the path it's correct.
I'm using Spring Tool Suite like a idee.
All stack trace error:
java.io.FileNotFoundException: Could not open ServletContext resource [/src/main/webapp/WEB-INF/views/welcome.html]
at org.springframework.web.context.support.ServletContextResource.getInputStream(ServletContextResource.java:159)
at org.thymeleaf.spring5.templateresource.SpringResourceTemplateResource.reader(SpringResourceTemplateResource.java:103)
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:223)
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:649)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072)
at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:366)
at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:190)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1400)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:655)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:228)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:190)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:163)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1723)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:831)

The correct runtime location is: templateResolver.setPrefix("WEB-INF/view/");
Uncorrect is; templateResolver.setPrefix("src/main/webapp/WEB-INF/views/"); and: templateResolver.setPrefix("/WEB-INF/view/");

You can just replace this Bean at WebAppConfig Step1:
#Bean
public InternalResourceViewResolver internalResourceViewResolver () {
InternalResourceViewResolver internalResolver = new InternalResourceViewResolver();
internalResolver.setPrefix("/WEB-INF/views/");
internalResolver.setSuffix(".html");
return internalResolver;
}

Instantiation of bean failed; nested exception; SpringBoot and Vaadin

I am going to be upfront, I am a newb in Java, especially with SpringBoot. I've been aping the Vaadin CRM tutorial application with minor custormization for my needs.
When I try to login, it throws the following error, which I cannot figure out, so again, I am just going to copypaste the entire stacktrace:
There was an exception while trying to navigate to '' with the exception message 'Error creating bean with name 'listView' defined in file [C:\Users\nikol\Desktop\vaadin-crm\vaadin-crm\target\classes\com\vaadin\tutorial\crm\UI\views\list\ListView.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.vaadin.tutorial.crm.UI.views.list.ListView]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Property type 'java.lang.Integer' doesn't match the field type 'java.lang.String'. Binding should be configured manually using converter.'
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'listView' defined in file [C:\Users\nikol\Desktop\vaadin-crm\vaadin-crm\target\classes\com\vaadin\tutorial\crm\UI\views\list\ListView.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.vaadin.tutorial.crm.UI.views.list.ListView]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Property type 'java.lang.Integer' doesn't match the field type 'java.lang.String'. Binding should be configured manually using converter.
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:315)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:296)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1354)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1204)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:353)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:233)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1273)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1234)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:494)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:349)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:342)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1172)
at com.vaadin.flow.spring.SpringInstantiator.getOrCreate(SpringInstantiator.java:106)
at com.vaadin.flow.di.Instantiator.createRouteTarget(Instantiator.java:160)
at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.lambda$getRouteTarget$1(AbstractNavigationStateRenderer.java:137)
at java.base/java.util.Optional.orElseGet(Optional.java:362)
at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.getRouteTarget(AbstractNavigationStateRenderer.java:136)
at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.sendBeforeEnterEventAndPopulateChain(AbstractNavigationStateRenderer.java:525)
at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.createChainIfEmptyAndExecuteBeforeEnterNavigation(AbstractNavigationStateRenderer.java:505)
at com.vaadin.flow.router.internal.AbstractNavigationStateRenderer.handle(AbstractNavigationStateRenderer.java:222)
at com.vaadin.flow.router.Router.handleNavigation(Router.java:249)
at com.vaadin.flow.router.Router.navigate(Router.java:220)
at com.vaadin.flow.router.Router.navigate(Router.java:186)
at com.vaadin.flow.router.Router.initializeUI(Router.java:93)
at com.vaadin.flow.server.BootstrapHandler.initializeUIWithRouter(BootstrapHandler.java:1532)
at com.vaadin.flow.server.BootstrapHandler.createAndInitUI(BootstrapHandler.java:1525)
at com.vaadin.flow.server.BootstrapHandler.synchronizedHandleRequest(BootstrapHandler.java:475)
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1547)
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:247)
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:710)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:352)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:218)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.vaadin.tutorial.crm.UI.views.list.ListView]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Property type 'java.lang.Integer' doesn't match the field type 'java.lang.String'. Binding should be configured manually using converter.
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:225)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:117)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:311)
... 120 more
Caused by: java.lang.IllegalStateException: Property type 'java.lang.Integer' doesn't match the field type 'java.lang.String'. Binding should be configured manually using converter.
at com.vaadin.flow.data.binder.Binder.bindProperty(Binder.java:2859)
at com.vaadin.flow.data.binder.Binder.lambda$null$26(Binder.java:2759)
at com.vaadin.flow.data.binder.Binder.handleProperty(Binder.java:2948)
at com.vaadin.flow.data.binder.Binder.lambda$bindInstanceFields$27(Binder.java:2757)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:563)
at com.vaadin.flow.data.binder.Binder.bindInstanceFields(Binder.java:2761)
at com.vaadin.tutorial.crm.UI.views.list.LivreForm.<init>(LivreForm.java:44)
at com.vaadin.tutorial.crm.UI.views.list.ListView.<init>(ListView.java:63)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:212)
... 122 more
ListView as mentioned in the stacktrace is aas follows:
package com.vaadin.tutorial.crm.UI.views.list;
import com.vaadin.flow.component.Key;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.button.ButtonVariant;
import com.vaadin.flow.component.dependency.CssImport;
import com.vaadin.flow.component.grid.Grid;
import com.vaadin.flow.component.html.Div;
import com.vaadin.flow.component.notification.Notification;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.component.textfield.TextField;
import com.vaadin.flow.data.value.ValueChangeMode;
import com.vaadin.flow.router.PageTitle;
import com.vaadin.flow.router.Route;
import com.vaadin.flow.server.PWA;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import com.vaadin.tutorial.crm.backend.entity.Campus;
import com.vaadin.tutorial.crm.backend.entity.Livre;
import com.vaadin.tutorial.crm.backend.entity.Stock;
import com.vaadin.tutorial.crm.backend.service.CampusService;
import com.vaadin.tutorial.crm.backend.service.LivreService;
import com.vaadin.tutorial.crm.UI.views.list.LivreForm;
import com.vaadin.tutorial.crm.UI.views.list.MainLayout;
/**
* A sample Vaadin view class.
* <p>
* To implement a Vaadin view just extend any Vaadin component and
* use #Route annotation to announce it in a URL as a Spring managed
* bean.
* Use the #PWA annotation make the application installable on phones,
* tablets and some desktop browsers.
* <p>
* A new instance of this class is created for every new user and every
* browser tab/window.
*/
#Component
#Scope("prototype")
#Route(value = "", layout = MainLayout.class)
#PageTitle("Livres | ENI Ecole Informatique")
public class ListView extends VerticalLayout {
LivreService livreService;
Grid<Livre> grid = new Grid<>(Livre.class);
TextField filterText = new TextField();
LivreForm form1;
public ListView(LivreService livreService, CampusService campusService) {
this.livreService = livreService;
addClassName("list-view");
setSizeFull();
configureGrid();
form1 = new LivreForm(campusService.findAll());
form1.addListener(LivreForm.SaveEvent.class, this::saveLivre);
form1.addListener(LivreForm.DeleteEvent.class, this::deleteLivre);
form1.addListener(LivreForm.CloseEvent.class, e -> closeEditor());
add(grid);
add(filterText, grid, form1);
Div content = new Div(grid, form1);
content.addClassName("content");
content.setSizeFull();
add(getToolbar(), content);
updateList();
closeEditor();
}
private void configureGrid() {
grid.addClassName("livre-grid");
grid.setSizeFull();
grid.removeColumnByKey("campus");
grid.removeColumnByKey("stock");
grid.setColumns("titreLivre", "description", "auteur", "refeni", "isbn", "categorie", "status");
grid.addColumn(livre -> {
Campus campus = livre.getCampus();
return campus == null ? "-" : campus.getNomCampus();
}).setHeader("Campus");
grid.addColumn(livre -> {
Stock stock = livre.getStock();
return stock == null ? "-" : stock.getQuantiteStock();
}).setHeader("Stock");
grid.getColumns().forEach(col -> col.setAutoWidth(true));
grid.asSingleSelect().addValueChangeListener(event ->
editLivre(event.getValue()));
}
public void editLivre(Livre livre) {
if (livre == null) {
closeEditor();
} else {
form1.setLivre(livre);
form1.setVisible(true);
addClassName("editing");
}
}
private void saveLivre(LivreForm.SaveEvent event) {
livreService.save(event.getLivre());
updateList();
closeEditor();
}
private void deleteLivre(LivreForm.DeleteEvent event) {
livreService.delete(event.getLivre());
updateList();
closeEditor();
}
private void closeEditor() {
form1.setLivre(null);
form1.setVisible(false);
removeClassName("editing");
}
private HorizontalLayout getToolbar() {
filterText.setPlaceholder("Filtrer par titre ou auteur...");
filterText.setClearButtonVisible(true);
filterText.setValueChangeMode(ValueChangeMode.LAZY);
filterText.addValueChangeListener(e -> updateList());
Button addLivreButton = new Button("Ajouter livre");
addLivreButton.addClickListener(click -> addLivre());
HorizontalLayout toolbar = new HorizontalLayout(filterText, addLivreButton);
toolbar.addClassName("toolbar");
return toolbar;
}
void addLivre() {
grid.asSingleSelect().clear();
editLivre(new Livre());
}
private void updateList() {
grid.setItems(livreService.findAll(filterText.getValue()));
}
}
and LivreForm is this:
package com.vaadin.tutorial.crm.UI.views.list;
import com.vaadin.flow.component.Component;
import com.vaadin.flow.component.ComponentEvent;
import com.vaadin.flow.component.ComponentEventListener;
import com.vaadin.flow.component.Key;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.button.ButtonVariant;
import com.vaadin.flow.component.combobox.ComboBox;
import com.vaadin.flow.component.formlayout.FormLayout;
import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
import com.vaadin.flow.component.textfield.EmailField;
import com.vaadin.flow.component.textfield.TextField;
import com.vaadin.flow.data.binder.BeanValidationBinder;
import com.vaadin.flow.data.binder.Binder;
import com.vaadin.flow.data.binder.ValidationException;
import com.vaadin.flow.shared.Registration;
import com.vaadin.tutorial.crm.backend.entity.Livre;
import com.vaadin.tutorial.crm.backend.entity.Livre.Categorie;
import com.vaadin.tutorial.crm.backend.entity.Campus;
import com.vaadin.tutorial.crm.backend.entity.Stock;
import java.util.List;
public class LivreForm extends FormLayout{
TextField titreLivre = new TextField("titreLivre");
TextField description = new TextField("description");
TextField auteur = new TextField("auteur");
TextField refeni = new TextField("refeni");
TextField isbn = new TextField("isbn");
ComboBox<Livre.Categorie> categorie = new ComboBox<>("Categorie");
ComboBox<Livre.Status> status = new ComboBox<>("Status");
ComboBox<Stock> stock = new ComboBox<>("Stock");
ComboBox<Campus> campus = new ComboBox<>("Campus");
Button save = new Button("Save");
Button delete = new Button("Delete");
Button close = new Button("Cancel");
Binder<Livre> binder = new BeanValidationBinder<>(Livre.class);
private Livre livre;
public LivreForm(List<Campus> campuses) {
addClassName("livre-form");
binder.bindInstanceFields(this);
campus.setItems(campuses);
campus.setItemLabelGenerator(Campus::getNomCampus);
status.setItems(Livre.Status.values());
categorie.setItems(Livre.Categorie.values());
add(titreLivre,
description,
auteur,
refeni,
isbn,
categorie,
status,
campus,
stock,
createButtonsLayout());
}
public void setLivre(Livre livre) {
this.livre = livre;
binder.readBean(livre);
}
private Component createButtonsLayout() {
save.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
delete.addThemeVariants(ButtonVariant.LUMO_ERROR);
close.addThemeVariants(ButtonVariant.LUMO_TERTIARY);
save.addClickShortcut(Key.ENTER);
close.addClickShortcut(Key.ESCAPE);
save.addClickListener(event -> validateAndSave());
delete.addClickListener(event -> fireEvent(new DeleteEvent(this, livre)));
close.addClickListener(event -> fireEvent(new CloseEvent(this)));
binder.addStatusChangeListener(e -> save.setEnabled(binder.isValid()));
return new HorizontalLayout(save, delete, close);
}
private void validateAndSave() {
try {
binder.writeBean(livre);
fireEvent(new SaveEvent(this, livre));
} catch (ValidationException e) {
e.printStackTrace();
}
}
public static abstract class LivreFormEvent extends ComponentEvent<LivreForm> {
private Livre livre;
protected LivreFormEvent(LivreForm source,Livre contact) {
super(source, false);
this.livre = livre;
}
public Livre getLivre() {
return livre;
}
}
public static class SaveEvent extends LivreFormEvent {
SaveEvent(LivreForm source, Livre livre) {
super(source, livre);
}
}
public static class DeleteEvent extends LivreFormEvent {
DeleteEvent(LivreForm source, Livre livre) {
super(source, livre);
}
}
public static class CloseEvent extends LivreFormEvent {
CloseEvent(LivreForm source) {
super(source, null);
}
}
public <T extends ComponentEvent<?>> Registration addListener(Class<T> eventType,
ComponentEventListener<T> listener) {
return getEventBus().addListener(eventType, listener);
}
}
Hopefully, you'll tell me how line 63 and 44 are related and what's bugging them, because this particular code monkey is stumped.

The issue is that form1 isn't initialized when you try to add it on line 62.
Caused by: java.lang.NullPointerException: Component to add cannot be null
at java.base/java.util.Objects.requireNonNull(Objects.java:233)
at com.vaadin.flow.component.HasComponents.add(HasComponents.java:53)
at com.vaadin.tutorial.crm.UI.views.list.ListView.<init>(ListView.java:62)

Use this link, it provides the optimal solution https://vaadin.com/docs/v8/framework/datamodel/datamodel-forms#datamodel.forms.conversion