pom.xml assembly sample. The assembled package includes dependencies and sources.

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>

	<groupId></groupId>
	<artifactId></artifactId>
	<version>1.0.0</version>
	<packaging>jar</packaging>

	<name></name>
	<url></url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>
	</dependencies>
  
	<build>
		<finalName>${artifactId}-${version}</finalName>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<debug>true</debug>
					<optimize>true</optimize>
					<showDeprecations>true</showDeprecations>
					<source>1.6</source>
					<target>1.6</target>
					<encoding>utf-8</encoding>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-surefire-plugin</artifactId>
				<configuration>
					<forkMode>pertest</forkMode>
					<argLine>-Xmx1024m</argLine>
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-eclipse-plugin</artifactId>
				<version>2.8</version>
				<configuration>
					<downloadSources>true</downloadSources>
					<downloadJavadocs>true</downloadJavadocs>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-source-plugin</artifactId>
				<executions>
					<execution>
						<phase>package</phase>
						<goals>
							<goal>jar</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-jar-plugin</artifactId>
				<configuration>
					<archive>
						<manifest>
							<addClasspath>true</addClasspath>
							<packageName></packageName>
							<classpathPrefix>lib</classpathPrefix>
						</manifest>
					</archive>
				</configuration>
				<executions>
					<execution>
						<goals>
							<goal>test-jar</goal>
						</goals>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-dependency-plugin</artifactId>
				<version>2.1</version>
				<executions>
					<execution>
						<id>copy-dependencies</id>
						<phase>package</phase>
						<goals>
							<goal>copy-dependencies</goal>
						</goals>
						<configuration>
							<outputDirectory>${basedir}/${target.dir}/lib/</outputDirectory>
							<includeScope>compile</includeScope>
							<excludeScope>test,provided</excludeScope>
						</configuration>
					</execution>
					<execution>
						<id>copy-dependencies-sources</id>
						<phase>package</phase>
						<goals>
							<goal>copy-dependencies</goal>
						</goals>
						<configuration>
							<classifier>sources</classifier>
							<failOnMissingClassifierArtifact>false</failOnMissingClassifierArtifact>
							<outputDirectory>${basedir}/${target.dir}/lib-src/</outputDirectory>
							<includeScope>compile</includeScope>
							<excludeScope>test,provided</excludeScope>
						</configuration>
					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-assembly-plugin</artifactId>
				<version>2.2</version>
				<executions>
					<execution>
						<phase>package</phase>
						<goals>
							<goal>single</goal>
						</goals>
						<configuration>
							<finalName>${artifactId}-${version}</finalName>
							<descriptors>
								<descriptor>src/maven/assembly.xml</descriptor>
							</descriptors>
						</configuration>
					</execution>
				</executions>
			</plugin>
		</plugins>
	</build>
</project>