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java.lang.NoClassDefFoundError: MailSender

Referente ao curso Spring MVC II: Integração, cache, segurança e templates, no capítulo Ajustes finais no projeto e atividade Usando JavaMail

por Rafael
| 619.9k xp | 59 posts
Desenvolvedor Mobile React Native 
jan 09, 2017 8:51:53 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
ADVERTÊNCIA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:casadocodigo' did not find a matching property.
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Server version:        Apache Tomcat/8.0.38
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Server built:          Oct 6 2016 20:51:55 UTC
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Server number:         8.0.38.0
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: OS Name:               Windows 10
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: OS Version:            10.0
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Architecture:          amd64
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Java Home:             C:\Program Files\Java\jdk1.8.0_112\jre
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: JVM Version:           1.8.0_112-b15
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: JVM Vendor:            Oracle Corporation
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: CATALINA_BASE:         C:\Users\Rafinhaa\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: CATALINA_HOME:         C:\Users\Rafinhaa\apache-tomcat-8.0.38
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Command line argument: -Dcatalina.base=C:\Users\Rafinhaa\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Command line argument: -Dcatalina.home=C:\Users\Rafinhaa\apache-tomcat-8.0.38
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Command line argument: -Dwtp.deploy=C:\Users\Rafinhaa\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Command line argument: -Djava.endorsed.dirs=C:\Users\Rafinhaa\apache-tomcat-8.0.38\endorsed
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.VersionLoggerListener log
INFORMAÇÕES: Command line argument: -Dfile.encoding=UTF-8
jan 09, 2017 8:51:53 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFORMAÇÕES: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.8.0_112\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jdk1.8.0_112/bin/../jre/bin/server;C:/Program Files/Java/jdk1.8.0_112/bin/../jre/bin;C:/Program Files/Java/jdk1.8.0_112/bin/../jre/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\MySQL\MySQL Utilities 1.6\;C:\Users\Rafinhaa\AppData\Local\Microsoft\WindowsApps;;C:\Users\Rafinhaa\eclipse\neon\eclipse;;.
jan 09, 2017 8:51:53 PM org.apache.coyote.AbstractProtocol init
INFORMAÇÕES: Initializing ProtocolHandler ["http-nio-8080"]
jan 09, 2017 8:51:53 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMAÇÕES: Using a shared selector for servlet write/read
jan 09, 2017 8:51:53 PM org.apache.coyote.AbstractProtocol init
INFORMAÇÕES: Initializing ProtocolHandler ["ajp-nio-8009"]
jan 09, 2017 8:51:53 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFORMAÇÕES: Using a shared selector for servlet write/read
jan 09, 2017 8:51:53 PM org.apache.catalina.startup.Catalina load
INFORMAÇÕES: Initialization processed in 890 ms
jan 09, 2017 8:51:53 PM org.apache.catalina.core.StandardService startInternal
INFORMAÇÕES: Starting service Catalina
jan 09, 2017 8:51:53 PM org.apache.catalina.core.StandardEngine startInternal
INFORMAÇÕES: Starting Servlet Engine: Apache Tomcat/8.0.38
jan 09, 2017 8:51:59 PM org.apache.jasper.servlet.TldScanner scanJars
INFORMAÇÕES: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
jan 09, 2017 8:51:59 PM org.apache.catalina.core.ApplicationContext log
INFORMAÇÕES: Spring WebApplicationInitializers detected on classpath: [br.com.casadocodigo.loja.conf.SpringSecurityFilterConfiguration@1238b95e, br.com.casadocodigo.loja.conf.ServletSpringMVC@31fff0a1]
log4j:WARN No appenders could be found for logger (org.springframework.web.context.support.StandardServletEnvironment).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
jan 09, 2017 8:52:00 PM org.apache.catalina.core.ApplicationContext log
INFORMAÇÕES: Initializing Spring root WebApplicationContext
jan 09, 2017 8:52:00 PM org.apache.catalina.core.StandardContext listenerStart
GRAVE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.NoClassDefFoundError: MailSender
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    at java.lang.Class.getDeclaredMethods(Class.java:1975)
    at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:140)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:288)
    at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:228)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:195)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:162)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:306)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:239)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:254)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:94)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4851)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: MailSender
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1333)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1167)
    ... 26 more

jan 09, 2017 8:52:00 PM org.apache.catalina.core.StandardContext startInternal
GRAVE: One or more listeners failed to start. Full details will be found in the appropriate container log file
jan 09, 2017 8:52:00 PM org.apache.catalina.core.StandardContext startInternal
GRAVE: Context [/casadocodigo] startup failed due to previous errors
jan 09, 2017 8:52:00 PM org.apache.catalina.core.ApplicationContext log
INFORMAÇÕES: Closing Spring root WebApplicationContext
jan 09, 2017 8:52:00 PM org.apache.coyote.AbstractProtocol start
INFORMAÇÕES: Starting ProtocolHandler ["http-nio-8080"]
jan 09, 2017 8:52:01 PM org.apache.coyote.AbstractProtocol start
INFORMAÇÕES: Starting ProtocolHandler ["ajp-nio-8009"]
jan 09, 2017 8:52:01 PM org.apache.catalina.startup.Catalina start
INFORMAÇÕES: Server startup in 7055 ms

AppWebConfiguration

package br.com.casadocodigo.loja.conf;

import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.TimeUnit;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
import org.springframework.cache.guava.GuavaCacheManager;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.format.datetime.DateFormatter;
import org.springframework.format.datetime.DateFormatterRegistrar;
import org.springframework.format.support.DefaultFormattingConversionService;
import org.springframework.format.support.FormattingConversionService;
import org.springframework.mail.MailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.web.accept.ContentNegotiationManager;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.support.StandardServletMultipartResolver;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.i18n.CookieLocaleResolver;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

import com.google.common.cache.CacheBuilder;

import br.com.casadocodigo.loja.controllers.HomeController;
import br.com.casadocodigo.loja.daos.ProdutoDAO;
import br.com.casadocodigo.loja.infra.FileSaver;
import br.com.casadocodigo.loja.models.CarrinhoCompras;

@EnableWebMvc
@ComponentScan(basePackageClasses = { HomeController.class, ProdutoDAO.class,
        FileSaver.class, CarrinhoCompras.class })
@EnableCaching
public class AppWebConfiguration extends WebMvcConfigurerAdapter {

    @Bean
    public InternalResourceViewResolver internalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");
        resolver.setExposedContextBeanNames("carrinhoCompras");

        return resolver;
    }

    @Bean
    public MessageSource messageSource() {
        ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
        messageSource.setBasename("/WEB-INF/messages");
        messageSource.setDefaultEncoding("UTF-8");
        messageSource.setCacheSeconds(1);

        return messageSource;
    }

    @Bean
    public FormattingConversionService mvcConversionService() {
        DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
        DateFormatterRegistrar registrar = new DateFormatterRegistrar();
        registrar.setFormatter(new DateFormatter("dd/MM/yyyy"));
        registrar.registerFormatters(conversionService);

        return conversionService;
    }

    @Bean
    public MultipartResolver multipartResolver() {
        return new StandardServletMultipartResolver();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations(
                "/resources/");
    }

    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

    @Bean
    public CacheManager cacheManager(){
        CacheBuilder<Object,Object> builder = CacheBuilder.newBuilder()
            .maximumSize(100)
            .expireAfterAccess(5, TimeUnit.MINUTES);
        GuavaCacheManager manager = new GuavaCacheManager();
        manager.setCacheBuilder(builder);
        return new ConcurrentMapCacheManager();
    }

    @Bean
    public ViewResolver contentNegotiationViewResolver (ContentNegotiationManager manager){
        List<ViewResolver> viewResolvers = new ArrayList<>();
        viewResolvers.add(internalResourceViewResolver());
        viewResolvers.add(new JSonViewResolver());

        ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
        resolver.setContentNegotiationManager(manager);
        resolver.setViewResolvers(viewResolvers);

        return resolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){
        configurer.enable();
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LocaleChangeInterceptor());
    }

    @Bean
    public LocaleResolver localeResolver(){
        return new CookieLocaleResolver();
    }
    @Bean
    public MailSender mailSender(){
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost("stmp.gmail.com");
        mailSender.setUsername("***@gmail.com");
        mailSender.setPassword("*****");
        mailSender.setPort(587);
        Properties mailProperties = new Properties();
        mailProperties.put("mail.smtp.auth", true);
        mailProperties.put("mail.smtp.starttls.enable", true);
        mailSender.setJavaMailProperties(mailProperties);

        return mailSender;
    }

}

PagamentoController

package br.com.casadocodigo.loja.controllers;

import java.util.concurrent.Callable;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.security.web.bind.annotation.AuthenticationPrincipal;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.client.HttpClientErrorException;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import br.com.casadocodigo.loja.models.CarrinhoCompras;
import br.com.casadocodigo.loja.models.DadosPagamento;
import br.com.casadocodigo.loja.models.Usuario;

@RequestMapping("/pagamento")
@Controller
public class PagamentoController {

    @Autowired
    private CarrinhoCompras carrinho;
    @Autowired
    private RestTemplate restTemplate;
    @Autowired
    private MailSender sender;

    @RequestMapping(value="/finalizar",method=RequestMethod.POST)
    public Callable<ModelAndView> finalizar(@AuthenticationPrincipal Usuario usuario, RedirectAttributes model) {
        return () ->{
            String uri = "http://book-payment.herokuapp.com/payment";

            try{
                String response = restTemplate.postForObject(uri, new DadosPagamento(carrinho.getTotal()), String.class);
                System.out.println(response);            
                enviaEmailCompraProduto(usuario);
                model.addFlashAttribute("sucesso", response);
                return new ModelAndView("redirect:/produtos");
            }catch(HttpClientErrorException e){
                e.printStackTrace();
                model.addFlashAttribute("falha", "Valor maior que o permitido");
                return new ModelAndView("redirect:/produtos");
            }

        };
    }

    private void enviaEmailCompraProduto(Usuario usuario) {
        SimpleMailMessage email = new SimpleMailMessage();
        email.setSubject("Compra finalizada com sucesso");
        email.setTo("*****@me.com");
//        email.setTo(usuario.getEmail());
        email.setText("Compra aprovada com sucesso no valor de " + carrinho.getTotal());
        email.setFrom("compras@casadocodigo.com.br");

        sender.send(email);
    }
}
2 respostas
por lucas.takeshi
| 582.9k xp | 1018 posts

Olá Rafinha,

o erro java.lang.NoClassDefFoundError ocorre quando durante a execução do projeto a JVM tentou usar alguma classe, mas não encontrou nenhuma definição. O projeto está compilando normalmente ou ele dá erro informando que não encontrou a classe MailSender no seu AppWebConfiguration? Como está a definição do javax.mail no seu pom.xml?

solução!
por Rafael
| 619.9k xp | 59 posts
Desenvolvedor Mobile React Native

Obrigado pela resposta lucas, após reiniciar a IDE tudo voltou a funcionar.