👀 Views: 238 💬 Answers: 1 📅 Created: 2025-06-14

maven spring-boot packaging Java

I'm upgrading from an older version and I'm stuck trying to I'm working with an scenario while trying to package my Spring Boot application using Maven. When I run `mvn clean package`, I get the following behavior message: ``` [behavior] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.5.4:repackage (default) on project my-app: Execution default of goal org.springframework.boot:spring-boot-maven-plugin:2.5.4:repackage failed: Unable to find main class -> [Help 1] ``` I've double-checked my `pom.xml` file, and I believe everything is set up correctly with the necessary dependencies. Here's a snippet of my `pom.xml`: ```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.example</groupId> <artifactId>my-app</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <properties> <java.version>11</java.version> <spring-boot.version>2.5.4</spring-boot.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>${spring-boot.version}</version> </plugin> </plugins> </build> </project> ``` I have a main application class annotated with `@SpringBootApplication`: ```java package com.example; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class MyApp { public static void main(String[] args) { SpringApplication.run(MyApp.class, args); } } ``` I’ve verified that the class is in the correct package, and I even tried cleaning the project and rebuilding it multiple times. I also ensured that my Java version in the IDE is set to 11, matching the property in `pom.xml`. What could be causing Maven not to find the main class during the packaging process? Is there something specific I might be missing regarding the configuration for the Spring Boot Maven plugin? I'm on Linux using the latest version of Java. This is part of a larger mobile app I'm building.