Springboot Wildfly 10.0 War file deployment ---> Failed to instantiate WebApplicationInitializer class - scala

Question

I created spring boot with scala Rest api and it is working with tomcat (default server) with the jar file. Now I want to deploy into Jboss/Wildfly 10.0 and created the war file. During the deployment I am getting the below issue. can some one help on this issue.
POM file:
<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.aexp.prospect</groupId>
<artifactId>atules</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<!--packaging>jar</packaging -->
<name>atules</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath />
<!-- lookup parent from repository -->
</parent>
<!-- properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties -->
<properties>
<start-class>com.aexp.prospect.atules.AtulApplication</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<!-- dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId>
<version>3.8.1</version> <scope>test</scope> </dependency> </dependencies -->
<dependencies>
<!-- Additional for war files -->
<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>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<!-- dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId>
</dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId>
</dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</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-web</artifactId>
</dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope> </dependency> <dependency> <groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId> <version>2.4.0</version> </dependency>
<dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId>
<version>2.4.0</version> </dependency -->
<!-- dependency> <groupId>org.scala-lang</groupId> <artifactId>scala-library</artifactId>
<version>2.11.8</version> </dependency -->
<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.5</version><!--$NO-MVN-MAN-VER$ -->
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/net.liftweb/lift-json -->
<dependency>
<groupId>net.liftweb</groupId>
<artifactId>lift-json_2.11</artifactId>
<version>2.6.3</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<!-- Additional for war files -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</dependency>
</dependencies>
<build>
<finalName>SpringBootES</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<!-- build> <plugins> <plugin> <groupId>net.alchim31.maven</groupId> <artifactId>scala-maven-plugin</artifactId>
<version>3.1.3</version> <executions> <execution> <goals> <goal>compile</goal>
<goal>testCompile</goal> </goals> </execution> </executions> </plugin> <plugin>
<groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId>
</plugin> </plugins> </build -->
</project>
Error Message while deploying:
13:56:38,104 INFO [org.jboss.as.repository] (DeploymentScanner-threads - 2) WFLYDR0001: Content added at location C:\Risk_Mgt\Downloads\wildfly-10.0.0.Final\standalone\data\content\76\46dbc0aa1700b71ef90ada1bc3c326e8d02776\content
13:56:38,109 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) WFLYJCA0019: Stopped Driver service with driver-name = SpringBootES.war_org.h2.Driver_1_4
13:56:38,119 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 249) WFLYUT0022: Unregistered web context: /SpringBootES
13:56:38,126 INFO [io.undertow.servlet] (ServerService Thread Pool -- 249) Closing Spring root WebApplicationContext
13:56:38,127 INFO [org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext] (ServerService Thread Pool -- 249) Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#42447031: startup date [Wed Mar 21 13:30:53 EDT 2018]; root of context hierarchy
13:56:38,129 INFO [org.springframework.jmx.export.annotation.AnnotationMBeanExporter] (ServerService Thread Pool -- 249) Unregistering JMX-exposed beans on shutdown
13:56:40,019 INFO [org.jboss.as.server.deployment] (MSC service thread 1-3) WFLYSRV0028: Stopped deployment SpringBootES.war (runtime-name: SpringBootES.war) in 1913ms
13:56:40,023 INFO [org.jboss.as.server.deployment] (MSC service thread 1-5) WFLYSRV0027: Starting deployment of "SpringBootES.war" (runtime-name: "SpringBootES.war")
13:56:51,926 WARN [org.jboss.as.ee] (MSC service thread 1-2) WFLYEE0007: Not installing optional component org.springframework.http.server.ServletServerHttpAsyncRequestControl due to an exception (enable DEBUG log level to see the cause)
13:56:51,928 WARN [org.jboss.as.ee] (MSC service thread 1-2) WFLYEE0007: Not installing optional component org.springframework.web.context.request.async.StandardServletAsyncWebRequest due to an exception (enable DEBUG log level to see the cause)
13:56:52,006 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-2) WFLYJCA0004: Deploying JDBC-compliant driver class org.h2.Driver (version 1.4)
13:56:52,012 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-1) WFLYJCA0018: Started Driver service with driver-name = SpringBootES.war_org.h2.Driver_1_4
13:56:52,093 INFO [io.undertow.servlet] (ServerService Thread Pool -- 260) 2 Spring WebApplicationInitializers detected on classpath
13:56:53,033 INFO [stdout] (ServerService Thread Pool -- 260)
13:56:53,033 INFO [stdout] (ServerService Thread Pool -- 260) . ____ _ __ _ _
13:56:53,034 INFO [stdout] (ServerService Thread Pool -- 260) /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
13:56:53,034 INFO [stdout] (ServerService Thread Pool -- 260) ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
13:56:53,034 INFO [stdout] (ServerService Thread Pool -- 260) \\/ ___)| |_)| | | | | || (_| | ) ) ) )
13:56:53,034 INFO [stdout] (ServerService Thread Pool -- 260) ' |____| .__|_| |_|_| |_\__, | / / / /
13:56:53,035 INFO [stdout] (ServerService Thread Pool -- 260) =========|_|==============|___/=/_/_/_/
13:56:53,055 INFO [stdout] (ServerService Thread Pool -- 260) :: Spring Boot :: (v1.5.2.RELEASE)
13:56:53,056 INFO [stdout] (ServerService Thread Pool -- 260)
13:56:53,241 INFO [com.aexp.prospect.atules.AtulApplication] (ServerService Thread Pool -- 260) Starting AtulApplication on NYKPC06712N with PID 16880 (started by pveerana in C:\Risk_Mgt\Downloads\wildfly-10.0.0.Final\bin)
13:56:53,241 INFO [com.aexp.prospect.atules.AtulApplication] (ServerService Thread Pool -- 260) No active profile set, falling back to default profiles: default
13:56:53,304 INFO [org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext] (ServerService Thread Pool -- 260) Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#61eb59d6: startup date [Wed Mar 21 13:56:53 EDT 2018]; root of context hierarchy
13:56:55,604 INFO [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] (ServerService Thread Pool -- 260) JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
13:56:55,877 INFO [io.undertow.servlet] (ServerService Thread Pool -- 260) Initializing Spring embedded WebApplicationContext
13:56:55,878 INFO [org.springframework.web.context.ContextLoader] (ServerService Thread Pool -- 260) Root WebApplicationContext: initialization completed in 2573 ms
13:56:57,166 INFO [org.springframework.boot.web.servlet.ServletRegistrationBean] (ServerService Thread Pool -- 260) Mapping servlet: 'dispatcherServlet' to [/]
13:56:57,168 INFO [org.springframework.boot.web.servlet.FilterRegistrationBean] (ServerService Thread Pool -- 260) Mapping filter: 'errorPageFilter' to: [/*]
13:56:57,168 INFO [org.springframework.boot.web.servlet.FilterRegistrationBean] (ServerService Thread Pool -- 260) Mapping filter: 'characterEncodingFilter' to: [/*]
13:56:57,168 INFO [org.springframework.boot.web.servlet.FilterRegistrationBean] (ServerService Thread Pool -- 260) Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
13:56:57,168 INFO [org.springframework.boot.web.servlet.FilterRegistrationBean] (ServerService Thread Pool -- 260) Mapping filter: 'httpPutFormContentFilter' to: [/*]
13:56:57,168 INFO [org.springframework.boot.web.servlet.FilterRegistrationBean] (ServerService Thread Pool -- 260) Mapping filter: 'requestContextFilter' to: [/*]
13:56:58,042 INFO [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter] (ServerService Thread Pool -- 260) Looking for #ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#61eb59d6: startup date [Wed Mar 21 13:56:53 EDT 2018]; root of context hierarchy
13:56:58,226 INFO [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] (ServerService Thread Pool -- 260) Mapped "{[/api/eshost/{eshost}/indexName/{indexName}/_basicSearch],methods=[GET]}" onto public java.lang.String com.aexp.prospect.atules.controllers.AtulSearchController.basicSearch(java.lang.String,java.lang.String,java.lang.String,java.lang.String)
13:56:58,235 INFO [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] (ServerService Thread Pool -- 260) Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
13:56:58,235 INFO [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping] (ServerService Thread Pool -- 260) Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
13:56:58,306 INFO [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] (ServerService Thread Pool -- 260) Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
13:56:58,306 INFO [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] (ServerService Thread Pool -- 260) Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
13:56:58,503 INFO [org.springframework.web.servlet.handler.SimpleUrlHandlerMapping] (ServerService Thread Pool -- 260) Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
13:56:58,924 INFO [org.springframework.jmx.export.annotation.AnnotationMBeanExporter] (ServerService Thread Pool -- 260) Registering beans for JMX exposure on startup
13:56:58,988 INFO [com.aexp.prospect.atules.AtulApplication] (ServerService Thread Pool -- 260) Started AtulApplication in 6.67 seconds (JVM running for 50698.335)
13:56:58,994 INFO [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 260) Initializing Mojarra 2.2.12-jbossorg-2 20150729-1131 for context '/SpringBootES'
13:57:03,889 INFO [org.wildfly.extension.undertow] (ServerService Thread Pool -- 260) WFLYUT0021: Registered web context: /SpringBootES
13:57:03,975 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) WFLYSRV0016: Replaced deployment "SpringBootES.war" with deployment "SpringBootES.war"
13:57:03,976 INFO [org.jboss.as.controller] (DeploymentScanner-threads - 2) WFLYCTL0183: Service status report
WFLYCTL0186: Services which failed to start: service jboss.undertow.deployment.default-server.default-host."/atules-0.0.1-SNAPSHOT": org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host."/atules-0.0.1-SNAPSHOT": java.lang.RuntimeException: javax.servlet.ServletException: Failed to instantiate WebApplicationInitializer class
13:57:03,986 INFO [org.jboss.as.repository] (DeploymentScanner-threads - 2) WFLYDR0002: Content removed from location C:\Risk_Mgt\Downloads\wildfly-10.0.0.Final\standalone\data\content\e4\796fce1370fb5d7b11d99012c33f8a30730b2a\content

Answer 1

The issue is with the POM file and I fixed it. Below is the POM file which I used. Especially start-class, spring-boot-maven-plugin and servlet (Initially I developed Application and it should be converted into servlet). These were not there in my initial POM file. Also should exclude the tomcat as this deployment in Jboss/Wildfly 10.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>com.aexp.xxx</groupId>
<artifactId>xxxes</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>xxxes</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
<relativePath />
<!-- lookup parent from repository -->
</parent>
<properties>
<start-class>com.aexp.xxx.xxxes.<Application Class Name></start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<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>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>SpringBootES</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>