Error while uploading springboot war file to Weblogic 12.2.1.3 server - spring-boot

Question

I have created a war of springboot project using maven and did some changes to deploy the same on weblogic. While I am uploading the war file to weblogic server its throwing error as shown in screenshot below. I have added configuration details of my project as well. Can you please help me to resolve this.
Spring boot main class
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoWeblogicWarApplication {
public static void main(String[] args) {
SpringApplication.run(DemoWeblogicWarApplication.class, args);
}
}
Servlet Initializer class
package com.example.demoWeblogicWar;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.web.WebApplicationInitializer;
public class ServletInitializer extends SpringBootServletInitializer implements WebApplicationInitializer{
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(DemoWeblogicWarApplication.class);
}
}
weblogic.xml
<?xml version="1.0" encoding="UTF-8"?>
<wls:weblogic-web-app
xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-web-app
http://xmlns.oracle.com/weblogic/weblogic-web-app/1.4/weblogic-web-app.xsd">
<wls:context-root>/myweb</wls:context-root>
<wls:container-descriptor>
<wls:prefer-application-packages>
<wls:package-name>org.slf4j.*</wls:package-name>
<wls:package-name>org.springframework.*</wls:package-name>
</wls:prefer-application-packages>
</wls:container-descriptor>
</wls:weblogic-web-app>
dispatcherServlet-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demoWeblogicWar</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>demoWeblogicWar</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

Answer 1

Here is a working example with weblogic 12.2.1.3. It is painful to work with WebLogic. Please follow all steps and post WebLogic console logs in case of any errors.
Source Tree
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.springboot-wls12c</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<packaging>war</packaging>
<properties>
<java.version>1.8</java.version>
<log4j2.version>2.8.2</log4j2.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-logging</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--Logging-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<!-- Add following depedency as provided -->
<!--START-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!--END-->
<!--Add Following dependencies to force it to be part of WAR-->
<!--START-->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>20.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml</groupId>
<artifactId>classmate</artifactId>
<version>1.3.4</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-envers</artifactId>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.1.1</version>
</dependency>
<!-- Add Log4j2 Dependency -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<!--END-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
DemoApplication.java
package com.springboot.wls12c;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import
org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.web.WebApplicationInitializer;
#SpringBootApplication
public class DemoApplication extends SpringBootServletInitializer
implements WebApplicationInitializer {
public static void main(final String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
#Override
protected SpringApplicationBuilder configure(final
SpringApplicationBuilder application) {
return application.sources(DemoApplication.class);
}
}
HelloWorldController.java
package com.springboot.wls12c;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
#RestController
#RequestMapping("/resource")
public class HelloWorldController {
#RequestMapping(method = RequestMethod.GET)
String readResource() {
return "Hello World!!";
}
}
weblogic.xml
<wls:weblogic-web-app
xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-web-app
http://xmlns.oracle.com/weblogic/weblogic-web-app/1.4/weblogic-web-app.xsd">
<wls:container-descriptor>
<wls:prefer-application-packages>
<wls:package-name>org.springframework.*</wls:package-name>
<wls:package-name>com.google.*</wls:package-name>
<wls:package-name>antlr.*</wls:package-name>
<wls:package-name>org.dom4j.*</wls:package-name>
<wls:package-name>org.hibernate.annotations.common.*</wls:package-name>
<wls:package-name>org.hibernate.*</wls:package-name>
<wls:package-name>com.fasterxml.classmate.*</wls:package-name>
<wls:package-name>javax.validation.*</wls:package-name>
<wls:package-name>javax.el.*</wls:package-name>
<wls:package-name>javax.persistence.*</wls:package-name>
<wls:package-name>org.slf4j.*</wls:package-name>
<wls:package-name>javassist.*</wls:package-name>
</wls:prefer-application-packages>
<wls:prefer-application-resources>
<wls:resource-name>META-INF/services/javax.persistence.spi.PersistenceProvider</wls:resource-name>
<wls:resource-name>META-INF/services/javax.validation.spi.ValidationProvider</wls:resource-name>
<wls:resource-name>META-INF/services/javax.annotation.processing.Processor</wls:resource-name>
</wls:prefer-application-resources>
</wls:container-descriptor>
</wls:weblogic-web-app>
Deploy
Test