CODEWITHSUNDEEP
javamavenjar
user1071914
user1071914

Reputation: 3403

Maven assembly plugin jar with dependencies - plugin not running

I've got a Maven project (submodule of a parent project) which I need to create a "jar with dependencies" for. I added the maven-assembly-plugin to the pom.xml, but it didn't create the artifact. I've slowly stripped everything else out of the pom.xml, until all that's left is dependencies and this plugin, and it still won't create a jar with dependencies. Watching the output of mvn clean package it runs clean, compile, and jar but never runs the assembly plugin. I don't know why. Here's the pom.xml, can anyone spot the problem?

<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>project</groupId>
    <artifactId>project-name</artifactId>
    <version>1.0</version>
    <name>project-name</name>

    <properties>
        <build.time>${maven.build.timestamp}</build.time>
        <spring.framework.version>4.3.1.RELEASE</spring.framework.version>
        <spring.security.version>4.1.1.RELEASE</spring.security.version>
        <spring.webflow.version>2.4.2.RELEASE</spring.webflow.version>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <build>
        <sourceDirectory>${project.basedir}/src/java</sourceDirectory>
        <resources>
            <resource>
                <directory>${project.basedir}/src/resources</directory>
            </resource>
        </resources>
        <outputDirectory>${project.basedir}/target/classes</outputDirectory>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.0.0</version>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
            </plugin>

        </plugins>
    </build>

    <dependencies>
        [snip]
    </dependencies>
</project>

Upvotes: 1

Views: 3039

Answers (1)

davidxxx
davidxxx

Reputation: 131516

Maven reference :

Assemble an application bundle or distribution from an assembly descriptor. This goal is suitable either for binding to the lifecycle or calling directly from the command line (provided all required files are available before the build starts, or are produced by another goal specified before this one on the command line).

The asssembly:single goal may be used in two ways :

  • either by binding it to the lifecycle

  • or by calling it directly from the command line

You do no one of them.

You can for example do it to bind the plugin execution to the package phase :

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>3.0.0</version>
    <configuration>
        <phase>package</phase> <!-- bind to the packaging phase -->
        <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
    </configuration>
</plugin>

Now the mvn package or mvn install command will create the jar with dependencies.

You can also keep your actual plugin configuration and run the mvn assembly:single command.

The second way allows to create the jar with dependencies on demand and not for every build.
Which may be desirable if the jar creation is a long task that doesn't need to be executed at each build.

Upvotes: 3

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