assembly.xml

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
    <id>src</id>
    <formats>
        <format>zip</format>
    </formats>
    <fileSets>
        <fileSet>
            <directory></directory>
            <includes>
                <include>README*</include>
                <include>*.txt</include>
                <include>*.xml</include>
                <include>*.properties</include>
            </includes>
            <excludes>
                <exclude>assembly.xml</exclude>
                <exclude>datanucleus.log</exclude>
            </excludes>
        </fileSet>
        <fileSet>
            <directory>src</directory>
        </fileSet>
    </fileSets>

</assembly>