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>protoc-jar-with-dependencies</id>
  <formats>
    <format>jar</format>
  </formats>
  <includeBaseDirectory>false</includeBaseDirectory>
  <dependencySets>
    <dependencySet>
      <outputDirectory>/</outputDirectory>
      <useProjectArtifact>true</useProjectArtifact>
	  <useTransitiveDependencies>false</useTransitiveDependencies>
      <unpack>true</unpack>
      <scope>runtime</scope>
      <includes>
        <include>com.github.os72:protoc-jar</include>
        <include>com.github.os72:protoc-jar-maven-plugin</include>
      </includes>
    </dependencySet>
  </dependencySets>
</assembly>