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POCreate multi-module project in maven
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  1. POCreate multi-module project in maven
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    copied!<p>I'd like to create multimodule standalone application with maven. </p> <p>In my case I'd like to make 'Loader' project (.jar) contains all other projects. But now I have just set of .jar files (loader.jar, crawler1.jar ... etc)</p> <p><em>loader's .pom</em>:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;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"&gt; &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt; &lt;groupId&gt;com.javanix.jmetalcrawler&lt;/groupId&gt; &lt;artifactId&gt;loader&lt;/artifactId&gt; &lt;version&gt;1.0&lt;/version&gt; &lt;build&gt; &lt;pluginManagement&gt; &lt;plugins&gt; &lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;source&gt;1.6&lt;/source&gt; &lt;target&gt;1.6&lt;/target&gt; &lt;/configuration&gt; &lt;/plugin&gt; &lt;/plugins&gt; &lt;/pluginManagement&gt; &lt;/build&gt; &lt;/project&gt; </code></pre> <p><em>subproject's .pom</em>:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;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"&gt; &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt; &lt;groupId&gt;com.javanix.jmetalcrawler&lt;/groupId&gt; &lt;artifactId&gt;Crawler-1&lt;/artifactId&gt; &lt;version&gt;1.0&lt;/version&gt; &lt;dependencies&gt; &lt;dependency&gt; &lt;groupId&gt;com.javanix.jmetalcrawler&lt;/groupId&gt; &lt;artifactId&gt;loader&lt;/artifactId&gt; &lt;version&gt;1.0&lt;/version&gt; &lt;/dependency&gt; &lt;/dependencies&gt; &lt;build&gt; &lt;pluginManagement&gt; &lt;plugins&gt; &lt;plugin&gt; &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt; &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt; &lt;configuration&gt; &lt;source&gt;1.6&lt;/source&gt; &lt;target&gt;1.6&lt;/target&gt; &lt;/configuration&gt; &lt;/plugin&gt; &lt;/plugins&gt; &lt;/pluginManagement&gt; &lt;/build&gt; &lt;/project&gt; </code></pre> <p><em>parent's .pom</em>:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;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"&gt; &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt; &lt;groupId&gt;com.javanix.jmetalcrawler&lt;/groupId&gt; &lt;artifactId&gt;parent&lt;/artifactId&gt; &lt;version&gt;1.0&lt;/version&gt; &lt;packaging&gt;pom&lt;/packaging&gt; &lt;name&gt;jMetalCrawler&lt;/name&gt; &lt;modules&gt; &lt;module&gt;Crawler-1&lt;/module&gt; &lt;module&gt;Loader&lt;/module&gt; &lt;/modules&gt; &lt;/project&gt; </code></pre> <p><strong>Lifecycle</strong>:</p> <ol> <li>compile 'Loader' (has interfaces/abstract classes)</li> <li>compile/package 'crawler1' (as it depends on 'Loader' project)</li> <li>compile/package 'crawler2' (as it depends on 'Loader' project)</li> <li>package loader with compiled 'crawler' projects</li> </ol> <p><strong>P.S.</strong>:</p> <ol> <li>Thanks to Adrian Shum , he gave an idea to make my project clearer</li> <li>After restructure my project in 'Launcher' project we can add dependencies via <code>maven-assembly-plugin</code> (@see <a href="http://rombertw.wordpress.com/2010/05/14/maven-recipe-building-an-aggregate-jar/" rel="nofollow">http://rombertw.wordpress.com/2010/05/14/maven-recipe-building-an-aggregate-jar/</a>)</li> </ol>
 

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