目标org.springframework.boot的执行默认值：spring-boot-maven-plugin：1.2.3.RELEASE：repackage failed：Source必须引用现有文件

Question

i want to use maven-jar-plugin to build diff classifier jars,like :

mvn deploy:deploy -P debug , classifier-demo-0.0.1-debug.jar deployed

mvn deploy:deploy -P test , classifier-demo-0.0.1-test.jar deployed.

but failure:

Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.2.3.RELEASE:repackage failed: Source must refer to an existing file

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>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.3.RELEASE</version>
</parent>
<groupId>org.lenic</groupId>
<artifactId>classifier-demo</artifactId>
<version>0.0.1</version>
<properties>
    <java.version>1.7</java.version>
</properties>

<distributionManagement>
    <repository>
        <id>local-repo</id>
        <url>file://D:\repo</url>
    </repository>
</distributionManagement>

<profiles>
    <profile>
        <id>test</id>
        <properties>
            <classifier>test</classifier>
        </properties>
    </profile>
    <profile>
        <id>debug</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <properties>
            <classifier>debug</classifier>
        </properties>
    </profile>
</profiles>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <classifier>${classifier}</classifier>
            </configuration>
        </plugin>
    </plugins>
</build>

Answer 1

Goal: Repackage Repackage tries to repackage original artifact ie projectName.jar. Which is outcome of default package phase of maven ie mvn package command output.

When Repackage goal executes it tries to find projectName.jar.

When you run mvn spring-boot:package at that time projectName.jar is not there. that why it gives error Source must refer to an existing file

Solution: run command mvn clean package spring-boot:repackage

Answer 2

i guess this is reason:

this.project.getArtifact().getFile()

spring-boot-maven-plugin\\src\\main\\java\\org\\springframework\\boot\\maven\\RepackageMojo.java

public void execute() throws MojoExecutionException, MojoFailureException {
    // ......

    File source = this.project.getArtifact().getFile();
    File target = getTargetFile();
    Repackager repackager = new Repackager(source) {
        @Override
        protected String findMainMethod(JarFile source) throws IOException {
            long startTime = System.currentTimeMillis();
            try {
                return super.findMainMethod(source);
            }
            finally {
                long duration = System.currentTimeMillis() - startTime;
                if (duration > FIND_WARNING_TIMEOUT) {
                    getLog().warn(
                            "Searching for the main-class is taking some time, "
                                    + "consider using the mainClass configuration "
                                    + "parameter");
                }
            }
        }
    };
    // ......
}

Answer 3

Actually, if you set Spring Boot Maven Plugin, you have included spring-boot:repackage into package. So just "mvn clean package" is enough, we don't need "mvn package spring-boot:repackage".