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    copied!<p>Actually, I didn't check what the <code>maven-shade-plugin</code> is doing exactly (or any other plugin) as maven 2 has everything built-in to create a megajar or uberjar. You just have to use the maven-assembly-plugin with the predefined <code>jar-with-dependencies</code> descriptor.</p> <p>Just add this snippet to your <code>pom.xml</code> to customize the manifest:</p> <pre><code>&lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-assembly-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;archive&gt; &lt;manifest&gt; &lt;mainClass&gt;my.package.to.my.MainClass&lt;/mainClass&gt; &lt;/manifest&gt; &lt;/archive&gt; &lt;/configuration&gt; &lt;/plugin&gt; </code></pre> <p>And the following command will generate your uberjar:</p> <pre><code>mvn assembly:assembly -DdescriptorId=jar-with-dependencies </code></pre> <p>But, again, the default behavior of this descriptor is to unpack dependencies (like the maven-shade-plugin). To be honest, I don't get why this is a problem but, if this is really not what you want, you can use your own custom assembly descriptor.</p> <p>To do so, first, create your assembly descriptor, let's say <code>src/assembly/uberjar.xml</code>, with the following content:</p> <pre><code>&lt;assembly&gt; &lt;id&gt;uberjar&lt;/id&gt; &lt;formats&gt; &lt;format&gt;jar&lt;/format&gt; &lt;/formats&gt; &lt;includeBaseDirectory&gt;false&lt;/includeBaseDirectory&gt; &lt;dependencySets&gt; &lt;dependencySet&gt; &lt;unpack&gt;false&lt;/unpack&gt; &lt;scope&gt;runtime&lt;/scope&gt; &lt;useProjectArtifact&gt;false&lt;/useProjectArtifact&gt; &lt;/dependencySet&gt; &lt;/dependencySets&gt; &lt;fileSets&gt; &lt;fileSet&gt; &lt;directory&gt;${project.build.outputDirectory}&lt;/directory&gt; &lt;outputDirectory&gt;/&lt;/outputDirectory&gt; &lt;/fileSet&gt; &lt;/fileSets&gt; &lt;/assembly&gt; </code></pre> <p>Then, configure the maven-assembly-plugin to use this descriptor and to add the dependencies to the <code>Class-Path</code> entry of the manifest:</p> <pre><code>&lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-assembly-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;descriptors&gt; &lt;descriptor&gt;src/assembly/uberjar.xml&lt;/descriptor&gt; &lt;/descriptors&gt; &lt;archive&gt; &lt;manifest&gt; &lt;mainClass&gt;my.package.to.my.MainClass&lt;/mainClass&gt; &lt;addClasspath&gt;true&lt;/addClasspath&gt; &lt;/manifest&gt; &lt;/archive&gt; &lt;/configuration&gt; &lt;!-- &lt;executions&gt; &lt;execution&gt; &lt;phase&gt;package&lt;/phase&gt; &lt;goals&gt; &lt;goal&gt;single&lt;/goal&gt; &lt;/goals&gt; &lt;/execution&gt; &lt;/executions&gt; --&gt; &lt;/plugin&gt; </code></pre> <p>Finally run <code>mvn assembly:assembly</code> to produce your uberjar. </p> <p>Optionally, uncomment the <code>executions</code> element to bind the assembly plugin on the <code>package</code> phase (and have the assembly produced as part of the normal build).</p>
 

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