I am using IntelliJ IDEA and building a spring boot application, i.e. a REST web service. Everything seems ok when running the application from the IDE. When I try to deploy it on WildFly 14, I get the following error:
{"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\".war\".undertow-deployment" => "java.lang.RuntimeException: javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class Caused by: java.lang.RuntimeException: javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class Caused by: javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class Caused by: java.lang.NoSuchMethodException: com.foo.Application.()"}}
My pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.foo.<application-name></groupId>
<artifactId><application-name></artifactId>
<version>xxx</version>
<name>Application name</name>
<description>Application description
</description>
<properties>
<start-class>com.foo.Application</start-class>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.0.1</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-model</artifactId>
<version>3.5.4</version>
</dependency>
<dependency>
<groupId>org.modelmapper</groupId>
<artifactId>modelmapper</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<!-- update Hibernate dependency on Javassist to 3.23.1 for Java 11 compatibility -->
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.23.1-GA</version>
</dependency>
<dependency>
<!-- update Mockito dependency for Java 11 compatibility -->
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.22.0</version><!--$NO-MVN-MAN-VER$ -->
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.12</version><!--$NO-MVN-MAN-VER$ -->
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<packaging>war</packaging>
<build>
<defaultGoal>install</defaultGoal>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<!--<configuration>
<executable>true</executable>
<skipTests>true</skipTests>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>-->
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
My com.foo.Application class:
package com.foo;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.Objects;
import java.util.Properties;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import org.modelmapper.ModelMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;
@SpringBootApplication
@Configuration
@EnableJpaRepositories("com.foo.repositories")
@EntityScan("com.foo.entities")
@EnableTransactionManagement
@ComponentScan({ "com.foo.services", "com.foo.controllers" })
@PropertySource("classpath:application.properties")
public class Application extends SpringBootServletInitializer {
private final Logger logger1 = LoggerFactory.getLogger(Application.class);
@Autowired
public Application(Environment env) {
this.env = env;
}
public static void main(String[] args) {
Logger log = LoggerFactory.getLogger(Application.class);
SpringApplication.run(Application.class, args);
log.trace("Application started");
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
@Bean
public CommandLineRunner commandLineRunner(ApplicationContext ctx) {
return args -> {
logger1.trace("Let's inspect the beans provided by Spring Boot:");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
logger1.trace(beanName);
}
};
}
// Database initialization is organized according to the tutorial in https://www.baeldung.com/spring-jpa-test-in-memory-database
private final Environment env;
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(Objects.requireNonNull(env.getProperty("jdbc.driverClassName")));
dataSource.setUrl(env.getProperty("jdbc.url"));
dataSource.setUsername(env.getProperty("jdbc.user"));
dataSource.setPassword(env.getProperty("jdbc.pass"));
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan("com.foo.entities");
em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
em.setJpaProperties(additionalProperties());
return em;
}
@Bean
JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory);
return transactionManager;
}
Properties additionalProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
/*hibernateProperties.setProperty("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", env.getProperty("hibernate.cache.use_second_level_cache"));
hibernateProperties.setProperty("hibernate.cache.use_query_cache", env.getProperty("hibernate.cache.use_query_cache"));*/
return hibernateProperties;
}
@Bean
public ModelMapper modelMapper() {
ModelMapper mm = new ModelMapper();
mm.addConverter(new InteractionConverter());
return mm;
}
public static String getVersion() throws IOException, XmlPullParserException {
MavenXpp3Reader reader = new MavenXpp3Reader();
String version;
if ((new File("pom.xml")).exists()) {
try (FileReader pomFileReader = new FileReader("pom.xml")) {
Model model = reader.read(pomFileReader);
version = model.getVersion();
}
} else {
try (InputStream stream = Application.class.getResourceAsStream(
"/META-INF/maven/com.foo.application-name/application-name/pom.xml")) {
InputStreamReader pomFileReader = new InputStreamReader(stream);
Model model = reader.read(pomFileReader);
version = model.getVersion();
}
}
return version;
}
public static String getDescription() throws IOException, XmlPullParserException {
MavenXpp3Reader reader = new MavenXpp3Reader();
String description;
if ((new File("pom.xml")).exists()) {
try (FileReader pomFileReader = new FileReader("pom.xml")) {
Model model = reader.read(pomFileReader);
description = model.getDescription();
}
} else {
try (InputStream stream = Application.class.getResourceAsStream(
"/META-INF/maven/com.foo.application-name/application-name/pom.xml")) {
InputStreamReader pomFileReader = new InputStreamReader(stream);
Model model = reader.read(pomFileReader);
description = model.getDescription();
}
}
return description;
}
}
If I get it right, the spring application entry point is not visible, but I don't understand why. Is there something wrong with my pom.xml or my Application class?
Tracing the source codes and found that it basically uses the following codes to create an instance of SpringBootServletInitializer
:
Constructor ctor = FooInitialializer.class.getDeclaredConstructor();
ctor.newInstance();
That means your SpringBootServletInitializer
should have an no-args constructor. So try to add one :
public class Application extends SpringBootServletInitializer {
Application(){}
}