maven-assembly-plugin

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-assembly-plugin</artifactId>
	<configuration>
		<descriptorRefs>
        	<descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
		<archive>
			<manifest>
				<mainClass>{your.package.main.class}</mainClass>
			</manifest>
		</archive>
	</configuration>
	<executions>
		<execution>
			<phase>package</phase>
			<goals>
				<goal>single</goal>
			</goals>
		</execution>
	</executions>
</plugin>